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1. Biology and life table of Eotetranychus lewisi (Acari: Tetranycidae) on Prunus persica cultivars from the Ecuadorian Andean region

Author:
César Miño; Rita Santana; Olguer León; Yelitza Colmenárez; Adriana Villa-Murillo; Carlos Vásquez
Source:
International journal of acarology 2022 v.48 no.3 pp. 275-278
ISSN:
1945-3892
Subject:
Eotetranychus; Euphorbia pulcherrima; Prunus persica; acarology; adulthood; adults; cultivars; eggs; fecundity; females; life tables; longevity; mites; peaches; pests; Andes region; Ecuador
Abstract:
... Eotetranychus lewisi (McGregor) is an important pest mite found in peach crops. This pest has recently been reported in the province of Tungurahua, Ecuador, little information is available. The biology and life table of E. lewisi using three peach cultivars (Zapallo, Blanco Abridor, and Tejón) was evaluated under laboratory conditions (19°C, 45% R.H., and 12:12 L.D). Mites were collected from Euph ...
DOI:
10.1080/01647954.2022.2060305

2. Adding a Natural Enemy to Respond to Pest Immigration and Delayed Natural Enemy Releases in Augmentative Biological Control

Author:
Erfan K. Vafaie; H. Brent Pemberton; Mengmeng Gu; David Kerns; Micky D. Eubanks; Kevin M. Heinz
Source:
Environmental entomology 2021 v.50 no.3 pp. 561-570
ISSN:
0046-225X
Subject:
Amblyseius swirskii; Bemisia tabaci; Eretmocerus eremicus; Euphorbia pulcherrima; biological control; entomology; greenhouses; immigration; natural enemies; pests; sweet potatoes
Abstract:
... Whether increased natural enemy density or adding a second natural enemy species will provide superior pest suppression in greenhouse augmentative biological control is unknown for many commercially available natural enemy species. In this study, we use sweetpotato whiteflies, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae), on poinsettias, Euphorbia pulcherrima Willd. ex Klotzsch (Malpighiale ...
DOI:
10.1093/ee/nvab007

3. Association of tomato yellow leaf curl virus — Oman strain with the leaf curl and yellow mosaic symptoms on papaya and wild poinsettia in Oman

Author:
Q. M. I. Haq; S. S. Sohrab; J. K. Brown; A. Al-Harrasi
Source:
Canadian journal of plant pathology 2022 v.44 no.3 pp. 465-472
ISSN:
1715-2992
Subject:
Bemisia tabaci; Betasatellite (genus); Carica papaya; DNA; Euphorbia pulcherrima; Tomato yellow leaf curl virus; genome; host plants; leaf curling; leaves; nucleotide sequences; phylogeny; plant pathology; sequence analysis; Iran; Oman; Saudi Arabia; Sudan
Abstract:
... Begomoviruses (Geminiviridae) cause severe diseases in several crops, often causing significant losses due to reduced yield and quality. These viruses are easily transmitted by the whitefly (Bemisia tabaci) vector. Begomovirus-like symptoms were observed in wild poinsettia (Euphorbia cyathophora) and cultivated papaya (Carica papaya) plants in the Nizwa, Al-Dakhliya and Al-Batinah regions of Oman, ...
DOI:
10.1080/07060661.2021.1995500

4. Changes in Fungal and Oomycete Community Composition Following Irrigation Reductions Aimed at Increasing Water Use Efficiency in a Containerized Nursery Crop

Author:
Johanna Del Castillo Múnera; Amisha T. Poret-Peterson; Cassandra L. Swett
Source:
Phytobiomes journal 2022 v.6 no.3 pp. 247-260
ISSN:
2471-2906
Subject:
DNA barcoding; Euphorbia pulcherrima; Fusarium; Phoma; Phytophthora; Plectosphaerella; community structure; drought tolerance; fungal communities; fungi; health status; irrigation; phytobiome; rhizosphere; root rot; volumetric water content; water shortages; water use efficiency
Abstract:
... Ornamental production in the United States spans an estimated 267,000 ha and uses approximately 169,000 m³ of water yearly. Ornamental growers, particularly those with air-closed systems, are interested in implementing reduced irrigation technologies such as sensor-controlled irrigation systems to improve water use efficiency in response to water scarcity. To evaluate phytobiome impacts, we utiliz ...
DOI:
10.1094/PBIOMES-09-21-0058-R

5. Development of a multiplex amplicon‐sequencing assay to detect low‐frequency mutations in poinsettia (Euphorbia pulcherrima) breeding programmes

Author:
Vinicius Vilperte; Robert Boehm; Thomas Debener
Source:
Plant breeding 2021 v.140 no.3 pp. 497-507
ISSN:
0179-9541
Subject:
Euphorbia pulcherrima; anthocyanins; color; container-grown plants; homozygosity; mutants; mutation; vacuoles
Abstract:
... Poinsettia is an economically important ornamental potted plant in which certain bract colour variants are often obtained by mutation breeding. Previously, in poinsettia, we identified Bract1, a GST gene involved in the sequestration and transport of anthocyanins to the vacuole. This gene carries a short, highly mutable 4‐bp repeat in its coding region. Loss of one repeat unit leads to a loss of f ...
DOI:
10.1111/pbr.12925

6. Efficacy of Selected Insecticides as Replacement for Neonicotinoids in Managing Sweetpotato Whitefly on Poinsettia

Author:
Gunbharpur Singh Gill; Juang Horng Chong
Source:
HortTechnology 2021 v.31 no.6 pp. 745-752
ISSN:
1943-7714
Subject:
Bemisia tabaci; Euphorbia pulcherrima; adults; cyantraniliprole; dinotefuran; flonicamid; foliar spraying; imidacloprid; sulfoxaflor; sweet potatoes
Abstract:
... Management of sweetpotato whitefly (Bemisia tabaci), one of the most economically important pests of poinsettia (Euphorbia pulcherrima), relies heavily on neonicotinoid insecticides. Growers are seeking insecticide alternatives to neonicotinoids due to market demands. Although several systemic and translaminar insecticides have been suggested as alternatives to neonicotinoids, no published study h ...
DOI:
10.21273/HORTTECH04853-21

7. Evaluating Fungicide Selections to Manage Pythium Root Rot on Poinsettia Cultivars with Varying Levels of Partial Resistance

Author:
Emma C. Lookabaugh; James P. Kerns; Barbara B. Shew
Source:
Plant disease 2021 v.105 no.6 pp. 1640-1647
ISSN:
0191-2917
Subject:
Euphorbia pulcherrima; Pythium aphanidermatum; Trichoderma; azoxystrobin; cultivars; cyazofamid; etridiazole; fenamidone; greenhouses; mefenoxam; mycelium; potassium phosphite; propamocarb; pyraclostrobin; quinones; root rot; sanitation; North Carolina
Abstract:
... Pythium aphanidermatum is the predominant species causing Pythium root rot of commercially grown poinsettia (Euphorbia pulcherrima Willd. ex Kotzch) in North Carolina. Pythium root rot is managed primarily through a combination of sanitation practices and preventative fungicide applications of mefenoxam or etridiazole. Insensitivity to mefenoxam is common but growers continue to rely on it from la ...
DOI:
10.1094/PDIS-04-20-0807-RE

8. First Report of Root-Knot Nematode Meloidogyne enterolobii on Poinsettia ‘Luv U Pink’ in Taiwan

Author:
C.-C. Liang; P. J. Chen
Source:
Plant disease 2022 v.106 no.6 pp. 1764
ISSN:
0191-2917
Subject:
Euphorbia pulcherrima; European Union; Meloidogyne enterolobii; body length; females; genes; greenhouses; haplotypes; morphometry; phylogeny; root-knot nematodes; sequence analysis; stylets; tail; China; Guatemala; Mexico; Taiwan
Abstract:
... Poinsettias (Euphorbia pulcherrima Willd. ex Klotzsch.) originated in southern Mexico and northern Guatemala and are the most valuable potted flowering plant in the spurge family (Euphorbiaceae). The European Union and the United States are the two biggest poinsettia markets (Taylor et al. 2011), with a wholesale value of $153 million in the United States in 2019. Root-knot galls of the poinsettia ...
DOI:
10.1094/PDIS-09-21-1899-PDN

9. First Report of a ‘Candidatus Phytoplasma pruni’-Related Strain Associated with Commercial Poinsettias in Canada

Author:
Y. Arocha Rosete; R. Michelutti; J. A. Scott
Source:
Plant disease 2021 v.105 no.10 pp. 3287
ISSN:
0191-2917
Subject:
Candidatus Phytoplasma pruni; Euphorbia pulcherrima; Poinsettia latent virus; Poinsettia mosaic virus; Prunus persica; Trillium; Vitis; cherries; computer simulation; cultivars; flowers; gardens; genes; leaf area; peptide elongation factors; pests; phylogeny; quarantine; restriction fragment length polymorphism; risk; sequence analysis; Italy; Korean Peninsula; Ontario
Abstract:
... The poinsettia, Euphorbia pulcherrima Willd. Ex Klotzsch (family Euphorbiaceae) is the second-largest potted ornamental crop in Canada; approximately 4.2 million pots per year are grown in Ontario greenhouses (Agriculture and Agri-Food Canada 2020). Their commercially popular compact appearance is due to a branch-inducing factor, the PoiBI phytoplasma (Lee et al. 1995). Millions of potted poinsett ...
DOI:
10.1094/PDIS-03-21-0504-PDN

10. First genome edited poinsettias: targeted mutagenesis of flavonoid 3′-hydroxylase using CRISPR/Cas9 results in a colour shift

Author:
Daria Nitarska; Robert Boehm; Thomas Debener; Rares Calin Lucaciu; Heidi Halbwirth
Source:
Plant cell, tissue, and organ culture 2021 v.147 no.1 pp. 49-60
ISSN:
0167-6857
Subject:
CRISPR-Cas systems; Euphorbia pulcherrima; anthocyanins; color; cultivars; cyanidin; enzymes; gene editing; genes; organ culture; pelargonidin; site-directed mutagenesis
Abstract:
... The CRISPR/Cas9 system is a remarkably promising tool for targeted gene mutagenesis, and becoming ever more popular for modification of ornamental plants. In this study we performed the knockout of flavonoid 3′-hydroxylase (F3′H) with application of CRISPR/Cas9 in the red flowering poinsettia (Euphorbia pulcherrima) cultivar ‘Christmas Eve’, in order to obtain plants with orange bract colour, whic ...
DOI:
10.1007/s11240-021-02103-5

11. Synthesis of Tyrosol 1,2,3-Triazole Derivatives and Their Phytotoxic Activity against Euphorbia heterophylla

Author:
Cristiane Aparecida Franco; Toshik Iarley da Silva; Marlon Gomes Dias; Bruno Wesley Ferreira; Bianca Lana de Sousa; Guilherme Mateus Bousada; Robert Weingart Barreto; Boniek Gontijo Vaz; Gesiane da Silva Lima; Marcelo Henrique dos Santos; José Antônio Saraiva Grossi; Eduardo Vinícius Vieira Varejão
Source:
Journal of agricultural and food chemistry 2022 v.70 no.9 pp. 2806-2816
ISSN:
1520-5118
Subject:
Commelina benghalensis; Erigeron sumatrensis; Euphorbia heterophylla; Euphorbia pulcherrima; carbon; chlorophyll; copper; cycloaddition reactions; diquat; food chemistry; necrosis; photosynthesis; phytotoxicity; stomatal conductance; water use efficiency; weed control; weeds
Abstract:
... The synthesis and phytotoxic activity of a series of tyrosol 1,2,3-triazole derivatives are reported herein. Target compounds were synthesized through the copper(I)-catalyzed azide-alkyne cycloaddition reaction (CuAAC), known as click reaction, and these were tested for phytotoxic activity on leaves of wild poinsettia (Euphorbia heterophylla), fleabane (Conyza sumatrensis), and tropical spiderwort ...
DOI:
10.1021/acs.jafc.1c06012

12. Variability of Phytoplasma Infection Density in Poinsettia and Evaluation of its Association with the Level of Branching in Host Plants

Author:
Shin Lee; Chien-Young Chu; Chia-Ching Chu
Source:
Plant disease 2021 v.105 no.05 pp. 1539-1545
ISSN:
0191-2917
Subject:
Euphorbia pulcherrima; ecology; pathogens; phenotype; phytoplasmal diseases; quantitative polymerase chain reaction; sequence analysis; vegetative growth
Abstract:
... It has long been established that phytoplasma infection is the cause of the free-branching phenotype in poinsettia. However, relatively little is known about the ecology of the pathogen in planta. The present study evaluated the infection pattern of poinsettia branch-inducing phytoplasma (PoiBI) and its association with the poinsettia phenotype during cutting propagation. The presence of this path ...
DOI:
10.1094/PDIS-10-20-2304-RE

13. Agricultural sustainability estimation of the European photovoltaic greenhouses

Author:
Marco Cossu; Akira Yano; Stefania Solinas; Paola A. Deligios; Maria Teresa Tiloca; Andrea Cossu; Luigi Ledda
Source:
European journal of agronomy 2020 v.118 pp. 126074
ISSN:
1161-0301
Subject:
Euphorbia pulcherrima; agronomy; alternative crops; canopy; crop production; cucumbers; energy; farms; floriculture; greenhouses; precision agriculture; supplementary lighting; sustainable agriculture; sweet peppers; tomatoes; Southern European region
Abstract:
... The integration of the photovoltaic (PV) energy in the greenhouse farm has raised concerns on the agricultural sustainability of this specific agrosystem in terms of crop planning and management, due to the shading cast by the PV panels on the canopy. The PV greenhouse (PVG) can be classified on the basis of the PV cover ratio (PVR), that is the ratio of the projected area of PV panels to the grou ...
DOI:
10.1016/j.eja.2020.126074

14. Biological Cycle of the Fungus Gnat Bradysia sp.¹ in a Lily (Lilium spp.) Crop

Author:
Florinda García-Pérez; Jaime Dorantes-Jiménez; César Sánchez-Hernández; Sofía Ivet Soto-García; Evert Villanueva-Sánchez
Source:
Southwestern entomologist 2021 v.46 no.4 pp. 971-976
ISSN:
0147-1724
Subject:
Agave; Bradysia; Euphorbia pulcherrima; Lilium; adults; eggs; entomologists; forests; fungi; fungus gnats; larvae; ornamental plants; oviposition; pupae; relative humidity; Mexico
Abstract:
... Bradysia sp. Frey, 1948 (Diptera: Sciaridae) damages mostly ornamentals, vegetables, and Agave spp. in greenhouses and nurseries. In Mexico, study has been infrequent, and only the identity of species of fungus gnats associated with crops of poinsettia (Euphorbia pulcherrima Willd. ex Klotzsch) and forest nurseries has been reported. To contribute to knowledge of the species, an experiment was don ...
DOI:
10.3958/059.046.0418

15. Developing a Water-stress Index for Potted Poinsettia Production

Author:
Lloyd L. Nackley; Elias Fernandes de Sousa; Bruno J.L. Pitton; Jared Sisneroz; Lorence R. Oki
Source:
HortScience 2020 v.55 no.8 pp. 1295-1302
ISSN:
2327-9834
Subject:
Euphorbia pulcherrima; agricultural runoff; fertilizers; floriculture; greenhouses; heat; industry; pesticides; plant growth; pollution; sap flow; soil water; transpiration; water content; water stress
Abstract:
... Potted poinsettia (Euphorbia pulcherrima) is an important commercial commodity for the U.S. floriculture industry. The production of poinsettia demands intensively managed light control, heat, fertilizer, and water; inhibiting elongation with plant growth regulators, and protecting plants from diseases and pests with pesticide applications. Excessive irrigation creates pollution, promotes disease, ...
DOI:
10.21273/HORTSCI14914-20

16. First Report of Bacterial Hollow Stalk Caused by Dickeya chrysanthemi (syn. Erwinia chrysanthemi) on Tobacco in Nanping, China

Author:
W. Lin; J. Y. Liu; Y. X. Feng; S. C. Zhang; Q. Zhao; Q. Lin; J. Wang
Source:
Plant disease 2020 v.104 no.12 pp. 3248
ISSN:
0191-2917
Subject:
DNA-directed DNA polymerase; Erwinia chrysanthemi; Euphorbia pulcherrima; Nicotiana tabacum; Pectobacterium; agar; ambient temperature; bacteria; computer software; cultivars; databases; harvest date; leaves; pathogenicity; pathogens; pigmentation; recombinases; sodium hypochlorite; summer; tobacco; China; Cuba
Abstract:
... Tobacco, Nicotiana tabacum L., family Solanaceae, is grown for its leaves (mature period). It originated in the Mesoamericas but today is cultivated globally. China produces about one-third of the world’s supply of tobacco leaves and is the largest tobacco producer in the world (Hu et al. 2007). In the early summer of 2019, after tobacco was topped, typical tobacco hollow stalk disease symptoms we ...
DOI:
10.1094/PDIS-06-20-1305-PDN

17. First Report of Bougainvillea Floral Bract Proliferation Disease in Cuba and Its Association with Phytoplasmal Infection

Author:
W. Wei; E. Pérez-López; Y. Zhao
Source:
Plant disease 2020 v.104 no.3 pp. 967
ISSN:
0191-2917
Subject:
Aster yellows phytoplasma; Bougainvillea glabra; Candidatus Phytoplasma asteris; Euphorbia pulcherrima; bracts; branching; cetyltrimethylammonium bromide; flowers; gardens; genes; hybrids; intergenic DNA; leaves; lianas; loci; morphs; nucleotide sequences; oligodeoxyribonucleotides; ornamental plants; phytoplasmal diseases; polymerase chain reaction; ribosomal DNA; ribosomal RNA; ribosomal proteins; sequence homology; temperate zones; Brazil; Cuba; India
Abstract:
... Bougainvillea is a genus of evergreen woody climbers or bushes native to South America. The plants in the genus often produce multiple inflorescences consisting of sepal-like bracts and waxy flowers. Being popular ornamental plants, bougainvilleas are widely cultivated in tropical, subtropical, and temperate areas around the world. Bougainvillea × buttiana refers to a variety of garden hybrids of ...
DOI:
10.1094/PDIS-09-19-2052-PDN

18. Fitness Cost of Imazamox Resistance in Wild Poinsettia (Euphorbia heterophylla L.)

Author:
Saeid Hassanpour-bourkheili; Mahtab Heravi; Javid Gherekhloo; Ricardo Alcántara-de la Cruz; Rafael De Prado
Source:
Agronomy 2020 v.10 no.12 pp. -
ISSN:
2073-4395
Subject:
Euphorbia heterophylla; Euphorbia pulcherrima; acetolactate synthase; agronomy; biotypes; early development; herbicide resistance; homozygosity; imazamox; leaf area; leaves; mutation; net assimilation rate; plant height; planting; seeds; shoots; soybeans; specific leaf area; stems; weeds; weight; Brazil
Abstract:
... Wild poinsettia (Euphorbia heterophylla L.) is a difficult-to-control weed in soybean production in Brazil that has developed resistance to herbicides, including acetolactate synthase inhibitors. We investigated the potential fitness cost associated to the Ser-653-Asn mutation that confers imazamox resistance in this weed. Plant height, leaf and stem dry weight, leaf area and seed production per p ...
DOI:
10.3390/agronomy10121859

19. Investigation of the effect of day length through black cloth treatment on flowering of potted poinsettia (Euphorbia pulcherima Willd. ex Klotzsch) and evaluation of its longevity under indoor conditions

Author:
D. P. Karunananda; S. E. Peiris
Source:
Acta horticulturae 2020 v. no.1278 pp. 211-218
ISSN:
0567-7572
Subject:
Euphorbia pulcherrima; color; floriculture; flowering; industry; longevity; photoperiod
Abstract:
... In the introduction of poinsettia (Euphorbia pulcherima Willd. ex Klotzsch) as a novel pot plant to Sri Lankan floriculture industry, artificial induction of flowers under long day conditions (off season) is necessary for it to produce marketable plants throughout the year. In this study, feasibility of force blooming during off season was investigated by subjecting vegetative plants to black clot ...
DOI:
10.17660/ActaHortic.2020.1278.31

20. Nutritional Relationship between Bemisia tabaci and Its Primary Endosymbiont, Portiera aleyrodidarum, during Host Plant Acclimation

Author:
Fang-Yu Hu; Chi-Wei Tsai
Source:
Insects 2020 v.11 no.8 pp. -
ISSN:
2075-4450
Subject:
Bemisia tabaci; Brassica oleracea var. alboglabra; Euphorbia pulcherrima; Gossypium; Rickettsia; Solanum lycopersicum; acclimation; biosynthesis; cotton; cucumbers; diet; endosymbionts; essential amino acids; fecundity; genes; host plants; nutrients; tomatoes
Abstract:
... Plant sap-sucking insects commonly have established mutualistic relationships with endosymbiotic bacteria that can provide nutrients lacking in their diet. Bemisia tabaci harbors one primary endosymbiont, Portiera aleyrodidarum, and up to seven secondary endosymbionts, including Hamiltonella defensa and Rickettsia sp. Portiera aleyrodidarum is already known to play a critical role in providing nec ...
DOI:
10.3390/insects11080498

21. Phosphorus restriction influences P efficiency and ornamental quality of poinsettia and chrysanthemum

Author:
Siri Caspersen; Karl-Johan Bergstrand
Source:
Scientia horticulturae 2020 v.267 pp. 109316
ISSN:
0304-4238
Subject:
Chrysanthemum; Euphorbia pulcherrima; biomass production; flowers; horticultural crops; nutrient solutions; phosphorus; phosphorus fertilizers; phytomass; plant growth; plant height; rock phosphate
Abstract:
... Better synchronization of plant-available phosphorus (P) with crop P requirement is required to reduce P losses to the environment and to improve resource-efficiency of the exploitation of non-renewable phosphate rock. In horticultural plant production, a restricted availability of P may limit stem length and improve compactness, which are desirable characters for many ornamental plants. In the pr ...
DOI:
10.1016/j.scienta.2020.109316

22. Phytoremediation of potentially toxic elements in a polluted industrial soil using Poinsettia

Author:
Fangmeng Xiao; Zhanying Gu; Arbi Sarkissian; Yaxin Ji; RuonanYang; Ling Yang; Qingyang Zeng; Peng Huang; Hanyue Chen
Source:
Physiology and molecular biology of plants 2021 v.27 no.4 pp. 675-686
ISSN:
0971-5894
Subject:
Euphorbia pulcherrima; bioaccumulation factor; experimental design; hyperaccumulators; molecular biology; physiology; phytoremediation; pollution; toxicity; China
Abstract:
... Potentially toxic elements (PTEs) pollution has become a serious environmental threat, particularly in developing countries such as China. In response, there is a growing interest in phytoremediation studies to identify plant species as designated hyperaccumulators of PTEs in polluted soils. Poinsettia was selected as a candidate species for phytoremediation of six PTEs (Zn, Pb, Hg, Cr, As, Cu) in ...
DOI:
10.1007/s12298-021-00980-w

23. Plants and zootoxins: Toxico-epidemiological investigation in domestic animals

Author:
Alessia Bertero; Franca Davanzo; Marina Rivolta; Cristina Cortinovis; Anita Vasquez; Angelo Le Mura; Asja Masuelli; Francesca Caloni
Source:
Toxicon 2021 v.196 pp. 25-31
ISSN:
0041-0101
Subject:
Bufo bufo; Cycas revoluta; Euphorbia pulcherrima; Hydrangea macrophylla; Salamandra salamandra; Scyphozoa; Thaumetopoea pityocampa; Vipera; dogs; epidemiological studies; salamanders and newts; toads; Italy
Abstract:
... An epidemiological study on animal poisoning due to plants and zootoxins has been carried out by the Poison Control Centre of Milan (CAV) in collaboration with the University of Milan (Italy). During the period January 2015–March 2019, the CAV received 932 calls on animal poisonings, 12.66% (n = 118) of which were related to plants and zootoxins. Among these, 95 enquiries (80.51%) concerned exposu ...
DOI:
10.1016/j.toxicon.2021.03.019

24. Seasonal Occurrence and Reproductive Suitability of Weed Hosts for Sweetpotato Whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae), in South Georgia

Author:
Apurba K. Barman; Phillip M. Roberts; Eric P. Prostko; Michael D. Toews
Source:
Journal of entomological science 2021 v.57 no.1 pp. 1-11
ISSN:
0749-8004
Subject:
Acanthospermum hispidum; Amaranthus palmeri; Ambrosia artemisiifolia; Bemisia tabaci; Euphorbia heterophylla; Euphorbia pulcherrima; Ipomoea cordatotriloba; Ipomoea quamoclit; Jacquemontia tamnifolia; Lamium amplexicaule; Melochia corchorifolia; Raphanus raphanistrum; Richardia scabra; Sida spinosa; Verbena bonariensis; agricultural landscapes; radishes; Georgia
Abstract:
... South Georgia represents an area of intensive agricultural production where cultivated crops serve as hosts of the sweetpotato whitefly, Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae), throughout the year. In addition to cultivated hosts, there are numerous weed species present in the agricultural landscape that are undoubtedly responsible for supporting B. tabaci population development. This s ...
DOI:
10.18474/JES20-94

25. A Trp574Leu Target-Site Mutation Confers Imazamox Resistance in Multiple Herbicide-Resistant Wild Poinsettia Populations from Brazil

Author:
Rafael R. Mendes; Hudson K. Takano; Rubem S. Oliveira; Fernando S. Adegas; Todd A. Gaines; Franck E. Dayan
Source:
Agronomy 2020 v.10 no.8 pp. -
ISSN:
2073-4395
Subject:
Euphorbia heterophylla; Euphorbia pulcherrima; acetolactate synthase; alleles; biomass; dose response; enzyme activity; enzyme inhibitors; evolution; genotyping; glyphosate; herbicide resistance; imazamox; protoporphyrinogen oxidase; site-directed mutagenesis; weeds; Brazil
Abstract:
... Wild poinsettia (Euphorbia heterophylla L.) is an important weed species in southern Brazil, especially due to the evolution of multiple herbicide resistance (e.g., acetolactate synthase (ALS)- inhibitors, protoporphyrinogen oxidase inhibitors, and glyphosate). The mechanism of resistance to imazamox was investigated in two wild poinsettia populations (R1 and R2) from southern Brazil and compared ...
DOI:
10.3390/agronomy10081057

26. Whitefly Abundance on Rooted Poinsettia Cuttings and Finished Poinsettias

Author:
Erfan K. Vafaie; H. Brent Pemberton; Mengmeng Gu; David Kerns; Micky D. Eubanks; Kevin M. Heinz
Source:
HortTechnology 2020 v.30 no.4 pp. 486-491
ISSN:
1063-0198
Subject:
Aleyrodidae; Euphorbia pulcherrima; greenhouses; immatures; integument
Abstract:
... In this study, we surveyed the initial whitefly (Aleyrodidae) populations on rooted poinsettia (Euphorbia pulcherrima) cuttings at two commercial greenhouse facilities in both 2017 and 2018 to determine the initial whitefly population at the beginning of poinsettia production and surveyed finished poinsettias at multiple retailers in Tyler, TX, over 2 years to determine whitefly densities consider ...
DOI:
10.21273/HORTTECH04532-19

27. Anthocyanin accumulation in poinsettia leaves and its functional role in photo-oxidative stress

Author:
Julietta Moustaka; Georgia Tanou; Anastasia Giannakoula; Ioannis-Dimosthenis S. Adamakis; Emmanuel Panteris; Eleftherios P. Eleftheriou; Michael Moustakas
Source:
Environmental and experimental botany 2020 v.175 pp. 104065
ISSN:
0098-8472
Subject:
Euphorbia pulcherrima; anthocyanins; antioxidant activity; ascorbate peroxidase; chloroplasts; electrons; hydrogen peroxide; leaves; oxygen; paraquat; photochemistry; photosystem I; photosystem II; radiation resistance; superoxide anion; superoxide dismutase
Abstract:
... The role of anthocyanin accumulation in poinsettia leaves exposed to photo-oxidative stress was evaluated by comparing green (anthocyanin less) and reddish (anthocyanin well equipped) leaves, co-occurring in poinsettia (Euphorbia pulcherrima Willd. ex Klotzsch). For the assessment we compared the photoprotective and antioxidant mechanisms in the two leaf types in response to photo-oxidative stress ...
DOI:
10.1016/j.envexpbot.2020.104065

28. Arg-128-Leu Target-Site Mutation in PPO2 Evolves in Wild Poinsettia (Euphorbia heterophylla) with Cross-Resistance to PPO-Inhibiting Herbicides

Author:
Rafael R. Mendes; Hudson K. Takano; Fernando S. Adegas; Rubem S. Oliveira; Todd A. Gaines; Franck E. Dayan
Source:
Weed science 2020 v.68 no.5 pp. 437-444
ISSN:
0043-1745
Subject:
Ambrosia artemisiifolia; Euphorbia heterophylla; Euphorbia pulcherrima; active sites; at-risk population; broadleaf weeds; chloroplasts; cross resistance; cytochrome P-450; dose response; hydrogen peroxide; lactofen; malathion; mitochondria; models; protoporphyrin; protoporphyrinogen oxidase; pyraflufen ethyl; saflufenacil; single nucleotide polymorphism; site-directed mutagenesis; Brazil
Abstract:
... Wild poinsettia (Euphorbia heterophylla L.) is a troublesome broadleaf weed in grain production areas in South America. Herbicide resistance to multiple sites of action has been documented in this species, including protoporphyrinogen oxidase (PPO) inhibitors. We investigated the physiological and molecular bases for PPO-inhibitor resistance in a E. heterophylla population (RPPO) from Southern Bra ...
DOI:
10.1017/wsc.2020.42

29. Enabling adaptation to water scarcity: Identifying and managing root disease risks associated with reducing irrigation inputs in greenhouse crop production – A case study in poinsettia

Author:
Johanna Del Castillo Múnera; Bruk Belayneh; Andrew Ritsvey; Emmi E. Koivunen; John Lea-Cox; Cassandra L. Swett
Source:
Agricultural water management 2019 v.226 no. pp. -
ISSN:
0378-3774
Subject:
Euphorbia pulcherrima; Pythium aphanidermatum; case studies; greenhouse experimentation; greenhouses; growers; irrigation rates; nursery crops; plant growth-promoting rhizobacteria; plant pathogens; risk; root rot; roots; volumetric water content; water conservation; water shortages; water stress; water use efficiency
Abstract:
... Greenhouse and nursery growers consume up to 19 thousand gallons of water per acre per day. Implementation of water conservation technologies to mitigate water resource depletion is imperative but recent studies indicate that associated drought stress may enhance losses from root diseases. The overall objective of this study was to evaluate and manage disease risks associated with reducing irrigat ...
DOI:
10.1016/j.agwat.2019.105737
CHORUS:
10.1016/j.agwat.2019.105737

30. Evaluation of the bacteria formulation different inoculum densities on growth and development of Euphorbia pulcherrima

Author:
Fazilet Parlakova Karagöz
Source:
Folia horticulturae 2020 v.32 no.2 pp. 179-188
ISSN:
2083-5965
Subject:
Bacillus megaterium; Euphorbia pulcherrima; Kluyvera cryocrescens; Pantoea agglomerans; bacteria; bracts; container-grown plants; diameter; enzyme activity; flowers; glutamate-ammonia ligase; greenhouses; growth and development; horticulture; leaf area; leaves; length; materials; nitrate reductase; plant development; plant height; research; rhizosphere; root cuttings; solutions; strains; suspensions; total nitrogen; water; weight; width
Abstract:
... This research was carried out to examine the effects of different doses of bacterial formulation comprised of a mixture of Bacillus megaterium TV-91C, Pantoea agglomerans RK-92 and Kluyvera cryocrescens TV-113C strains on the plant development and bract quality of poinsettias (Euphorbia pulcherrima Willd. ex Klotzsch), which are one of the most important potted plants grown for their fleshy bracts ...
DOI:
10.2478/fhort-2020-0017

31. First Report of Bacterial Leaf Spot of Crown-of-Thorns (Euphorbia milii) Caused by Xanthomonas axonopodis pv. poinsettiicola in Taiwan

Author:
Y.-R. Lin; S. Lee; C.-H. Lu; C.-C. Chu
Source:
Plant disease 2019 v.103 no.4 pp. 759
ISSN:
0191-2917
Subject:
Euphorbia milii; Euphorbia pulcherrima; Xanthomonas axonopodis; Xanthomonas campestris pv. campestris; Xanthomonas codiaei; Xanthomonas hortorum; aerial parts; agar; bacterial diseases of plants; carbonates; casein; disease transmission; flowers; genes; glucose; hosts; humidity; hypersensitive response; inoculum density; leaf spot; leaves; light microscopes; lipids; markets; multilocus sequence typing; plant pathogenic bacteria; plastic bags; polymerase chain reaction; sequence homology; spraying; starch; tissues; tobacco; yeasts; Taiwan; United States
Abstract:
... Crown-of-thorns (Euphorbia milii; Euphorbiaceae) is a popular plant widely grown as a potted flower or hedge in many countries (Marys and Romano 2011). In 2017, leaf spot symptoms were observed on potted E. milii in a plant market located in Nantun District, Taichung, Taiwan. Over 90% of the plants onsite were infected. Leaf lesions were round, had necrotic centers, and had margins that appeared y ...
DOI:
10.1094/PDIS-09-18-1651-PDN

32. First Report of Catharanthus Yellow Mosaic Virus, Pedilanthus Leaf Curl Virus, and Tomato Leaf Curl Betasatellite Infecting Duranta erecta in Pakistan

Author:
M. N. Shuja; M. Ali; T. Ali; B. Khattak; M. Qasim; S. Winter
Source:
Plant disease 2019 v.103 no.5 pp. 1049
ISSN:
0191-2917
Subject:
Begomovirus; Brassica rapa; Capsicum annuum; Carica papaya; Catharanthus roseus; Cestrum nocturnum; DNA fragmentation; Daucus carota; Duranta erecta; Euphorbia pulcherrima; Glycine max; Raphanus sativus; Solanum lycopersicum; Tabernaemontana divaricata; Tomato leaf curl betasatellite; cetyltrimethylammonium bromide; circular DNA; clones; crop production; crops; disease incidence; enzymatic hydrolysis; gardens; leaf curling; leaves; nucleotide sequences; nucleotides; ornamental plants; plasmid vectors; restriction endonucleases; satellites; sequence analysis; viruses; India; Pakistan
Abstract:
... Golden dewdrop (Duranta erecta L.; family Verbenaceae) is an ornamental plant that is commonly grown as a garden hedge in Pakistan. In May 2018, begomovirus-like symptoms of severe leaf curling and yellow mosaic were observed on D. erecta plants grown in the vicinity of Kohat University (Khyber Pakhtunkhwa province, Pakistan) with a disease incidence of approximately 20%. Leaf samples were collect ...
DOI:
10.1094/PDIS-08-18-1308-PDN

33. First Report of Dickeya dadantii Causing Stem Rot of Poinsettia in Taiwan

Author:
X.-Y. Wei; Y.-H. Chiu; W.-L. Deng; C.-C. Chu
Source:
Plant disease 2019 v.103 no.1 pp. 143
ISSN:
0191-2917
Subject:
Dickeya dadantii; Dickeya solani; Erwinia chrysanthemi; Euphorbia pulcherrima; agar; bacteria; carbonates; enzymes; geographical distribution; glucose; growth chambers; insects; leaf blade; lodging; maceration; paper; petioles; plastic bags; polymerase chain reaction; potatoes; probability; ribosomal DNA; sequence analysis; shoots; stem rot; stems; tubers; yeasts; China; Czech Republic; Taiwan; United States
Abstract:
... Stem rot symptoms were observed on potted poinsettia plants (Euphorbia pulcherrima var. Wonderful) in a nursery located in Tongluo Township, Miaoli County, Taiwan. Infected plants exhibited large water-soaked lesions on the upper portion of their shoots, and stem lodging occurred in many severely infected plants. In most cases, the water-soaked lesions also expanded along the petiole up to the bas ...
DOI:
10.1094/PDIS-03-18-0397-PDN

34. First Report of Poinsettia Wilt Caused by Amphobotrys ricini (syn. Botryotinia ricini) in Florida

Author:
Charles Krasnow; Ana Maria Bocsanczy; Lee Bloomcamp; David Norman
Source:
Plant disease 2020 v.104 no.11 pp. 3064
ISSN:
0191-2917
Subject:
Botryotinia; Botrytis cinerea; DNA; Euphorbia milii; Euphorbia pulcherrima; RNA; agar; castor beans; conidia; conidiophores; culture media; disease severity; ethanol; genes; glucose; glyceraldehyde; greenhouses; heat shock proteins; mycelium; pathogenicity; pathogens; sclerotia; stem rot; strawberries; Florida; Louisiana
Abstract:
... Poinsettia (Euphorbia pulcherrima) plants exhibiting wilt symptoms were observed in two large research greenhouses at the University of Florida, Gainesville, in 2019. Disease symptoms were observed on a limited number (<5%) of plants during a period of high temperatures, and diseased plants had continuously been rogued during the growing season. Shoots of symptomatic plants were wilting with branc ...
DOI:
10.1094/PDIS-04-20-0891-PDN

35. First Report of Powdery Mildew Caused by Leveillula clavata on Wild Poinsettia (Euphorbia heterophylla) in China

Author:
H. Wu; W. Miao; Y. Pan; R. Di; Q. He; W. Liu
Source:
Plant disease 2019 v.103 no.5 pp. 1034
ISSN:
0191-2917
Subject:
pressing; DNA primers; subtropics; medicinal plants; appressoria; greenhouses; conidia; pastures; ribosomal DNA; powdery mildew; invasive species; mycelium; introduced plants; herbal medicines; anamorphs; Euphorbia heterophylla; germ tube; conidiophores; relative humidity; pathogenicity; weeds; teleomorphs; Euphorbia pulcherrima; Oidiopsis; Leveillula taurica; stomata; fungi; China
Abstract:
... Wild poinsettia (Euphorbia heterophylla L.) is a species in the genus Euphorbia (family Euphorbiaceae), which is a serious weed problem in agricultural and pasture land worldwide (Chachalis 2015). In China, this invasive alien plant is widely distributed throughout the tropical and subtropical regions and is commonly used as an ornamental and in Chinese herbal medicine. In December 2017, typical s ...
DOI:
10.1094/PDIS-09-18-1656-PDN

36. Gas exchange of poinsettia leaves from the stock plant through the propagation environment

Author:
P. O. Alem; J. E. Faust
Source:
Acta horticulturae 2019 v. no.1263 pp. 223-228
ISSN:
0567-7572
Subject:
Euphorbia pulcherrima; chlorophyll; cold storage; gas exchange; harvesting; leaves; photosynthesis; plant cuttings; roots; transpiration
Abstract:
... Gas exchange (photosynthesis and transpiration) and chlorophyll fluorescence measurements were recorded on poinsettia (Euphorbia pulcherrima) leaves on stock plants prior to cutting removal and then on those same leaves after the cuttings were harvested from the stock plant, placed in a simulated postharvest environment for 3 d, and grown on a propagation bench for 28 d. The results demonstrate th ...
DOI:
10.17660/ActaHortic.2019.1263.28

37. Integration of microbial biopesticides in greenhouse floriculture: The Canadian experience

Author:
Michael Brownbridge; Rose Buitenhuis
Source:
Journal of invertebrate pathology 2019 v.165 pp. 4-12
ISSN:
0022-2011
Subject:
Chrysanthemum; Euphorbia pulcherrima; biological control; floriculture; floriculture crops; greenhouses; growers; integrated pest management; markets; mechanism of action; microbial insecticides; pest control; pests; philosophy; production technology; spinosad; Canada
Abstract:
... Historically, greenhouse floriculture has relied on synthetic insecticides to meet its pest control needs. But, growers are increasingly faced with the loss or failure of synthetic chemical pesticides, declining access to new chemistries, stricter environmental/health and safety regulations, and the need to produce plants in a manner that meets the ‘sustainability’ demands of a consumer driven mar ...
DOI:
10.1016/j.jip.2017.11.013

38. Molecular evidence for repeated recruitment of wild Christmas poinsettia (Euphorbia pulcherrima) into traditional horticulture in Mexico

Author:
Laura Trejo; Estefania Briones-Dumas; Roberto Gómez-Bermejo; Mark E. Olson
Source:
Genetic resources and crop evolution 2019 v.66 no.2 pp. 481-490
ISSN:
0925-9864
Subject:
Euphorbia pulcherrima; chloroplasts; color; cultivars; domestication; gardens; genetic variation; hills; homeowners; human settlements; inflorescences; ornamental plants; wild plants; Mexico
Abstract:
... One of Mexico’s most emblematic and economically important plants is the poinsettia (Euphorbia pulcherrima). After nearly 200 years of poinsettia cultivation outside Mexico, more than 300 varieties of many different sizes, shapes and colors have been generated. However, studies on the management of or the evolutionary processes through which the changes present in cultivars have been generated, st ...
DOI:
10.1007/s10722-018-0727-1

39. Quantifying the Effects of Chelated Calcium and Salicylic Acid on the Postharvest Quality of Poinsettia Cuttings

Author:
Uttara C. Samarakoon; James E. Faust
Source:
HortTechnology 2019 v.29 no.1 pp. 30-34
ISSN:
1063-0198
Subject:
Euphorbia pulcherrima; Pelargonium hortorum; calcium; calcium chloride; durability; foliar application; leaves; pathogens; phytotoxicity; salicylic acid; storage quality; strength (mechanics); texture
Abstract:
... Vegetatively propagated unrooted cuttings typically are grown in equatorial locations and shipped via airfreight to propagators located in temperate climates. Cutting quality, defined as the resistance to external forces, such as physical damage and pathogen infection, impacts postharvest durability during shipping and propagation. During our previous studies, foliar application of calcium (Ca) in ...
DOI:
10.21273/HORTTECH04200-18

40. Rapid Sand Filtration of Recycled Irrigation Water Controlled Pythium Root Rot of Poinsettia in Greenhouse

Author:
Sangho Jeon; Charles S. Krasnow; Gemini D. Bhalsod; Blair R. Harlan; Mary K. Hausbeck; Steven I. Safferman; Wei Zhang
Source:
HortTechnology 2019 v.29 no.5 pp. 578-589
ISSN:
1063-0198
Subject:
Euphorbia pulcherrima; Pythium aphanidermatum; activated carbon; chlorosis; etridiazole; filtration; floriculture; fungicide application; greenhouses; inoculum; irrigation water; nutrient deficiencies; pathogens; root rot; sand; sand filters
Abstract:
... Pythium species incite crown and root rot and can be highly destructive to floriculture crops in greenhouses, especially when irrigation water is recycled. This study assessed the performance of rapid filtration of recycled irrigation water for controlling pythium root rot of poinsettia (Euphorbia pulcherrima) in greenhouses. Two greenhouse experiments investigated the effect of filter media type ...
DOI:
10.21273/HORTTECH04226-18

41. Risk of Spreading Soft Rot Through Cutting Dips Against Whiteflies in Greenhouse-Grown Poinsettia

Author:
Rosemarije Buitenhuis; Anissa Poleatewich; Mark Jandricic; Michael Brownbridge
Source:
Plant disease 2020 v.104 no.8 pp. 2262-2268
ISSN:
0191-2917
Subject:
Aleyrodidae; Euphorbia pulcherrima; Pectobacterium carotovorum subsp. carotovorum; cost effectiveness; cross contamination; cutting; dipping; disease incidence; greenhouses; growing media; inoculum; insect infestations; insect pests; insecticidal soaps; laboratory experimentation; ornamental plants; pathogens; risk; sanitation
Abstract:
... Dipping is a quick and cost-effective technique to reduce pest infestations on unrooted cuttings of greenhouse ornamental crops. Large numbers of cuttings are immersed in an insecticidal treatment, e.g., biopesticides and/or insecticidal soap, before they are stuck in the growing medium and rooted. This research investigated the risk of cross-contamination of poinsettia cuttings with Pectobacteriu ...
DOI:
10.1094/PDIS-12-19-2632-RE

42. Silicon Alleviates Temperature Stresses in Poinsettia by Regulating Stomata, Photosynthesis, and Oxidative Damages

Author:
Jiangtao Hu; Yali Li; Byoung Ryong Jeong
Source:
Agronomy 2020 v.10 no.9 pp. -
ISSN:
2073-4395
Subject:
Euphorbia pulcherrima; cold stress; epicuticular wax; heat stress; hydrogen sulfide; malondialdehyde; photosynthesis; plant cuttings; silicon; stomata; stomatal movement; temperature
Abstract:
... The effects of silicon (Si) on temperature stresses were investigated in poinsettia. Well-rooted cuttings supplemented with and without Si were exposed to 40 °C, and plants treated with or without Si during cutting propagation and cultivation were subjected to 4 °C. The results showed that almost all the stomata of cuttings without Si supplementation were closed, while some of them were still open ...
DOI:
10.3390/agronomy10091419

43. Survey of Bemisia tabaci (Hemiptera: Aleyrodidae) in Agricultural Ecosystems in Georgia

Author:
Cindy L. McKenzie; Alton N. Sparks; Phillip Roberts; Ronald D. Oetting; Lance S. Osborne
Source:
Journal of entomological science 2020 v.55 no.2 pp. 163-170
ISSN:
0749-8004
Subject:
Bemisia tabaci; Chrysanthemum morifolium; Euphorbia pulcherrima; agroecosystems; biotypes; cantaloupes; corn; cotton; cowpeas; cryptic species; cucumbers; eggplants; green beans; greenhouses; host plants; kale; nursery crops; ornamental plants; peanuts; pepper; pests; soybeans; surveys; sweet potatoes; tomatoes; zucchini; Georgia; Wisconsin
Abstract:
... Bemisia tabaci (Gennaduis) is a large complex of cryptic species whose members are invasive pests of economically important commodities, including cotton, vegetables, and ornamental crops. A new state detection of Mediterranean (MED; biotype Q) whitefly on poinsettia from a commercial greenhouse was made in Wisconsin in July 2018, bringing the total positive MED whitefly states to 27, indicating t ...
DOI:
10.18474/0749-8004-55.2.163

44. The effect of mineral fractions on physical and phosphorus-related chemical properties of peat-based substrates for pot plants

Author:
Azizollah Khandan-Mirkohi; Rashid Pirgazi
Source:
Journal of plant nutrition 2019 v.42 no.13 pp. 1496-1504
ISSN:
1532-4087
Subject:
Euphorbia pulcherrima; case studies; clay; clay fraction; mineral soils; mixing; peat; phosphorus; physicochemical properties; root systems; water content; water holding capacity
Abstract:
... Physicochemical traits of peat-based pot substrates prepared from mixing of 20 or 40 vol.% of some different mineral fractions (sub. 1 to 7, subjected to decreasing amount of clay content of 66.1, 61.2, 49.7, 38.5, 26.0, 23.7 and 19.4%, respectively) with black peat were evaluated and then phosphorus uptake of poinsettia (Euphorbia pulcherima) simulated mechanistically as a case study pot plant. F ...
DOI:
10.1080/01904167.2019.1628970

45. The omnivorous predator Macrolophus pygmaeus, a good candidate for the control of both greenhouse whitefly and poinsettia thrips on gerbera plants

Author:
Ada Leman; Barbara L. Ingegno; Luciana Tavella; Arne Janssen; Gerben J. Messelink
Source:
Insect science 2020 v.27 no.3 pp. 510-518
ISSN:
1672-9609
Subject:
Echinothrips americanus; Euphorbia pulcherrima; Gerbera; Macrolophus; Trialeurodes vaporariorum; biological control; greenhouse experimentation; herbivores; olfactometers; omnivores; ornamental plants; pest control; pests; predatory insects; reproduction; vegetables
Abstract:
... The poinsettia thrips Echinothrips americanus Morgan is a relatively new pest that has spread rapidly worldwide and causes serious damage in both vegetable and ornamental plants. In this study, we investigated if and how effective this pest can be controlled in gerbera by the omnivorous predator Macrolophus pygmaeus (Rambur). Because herbivores on plants can interact through a shared predator, we ...
DOI:
10.1111/1744-7917.12655
PubMed:
30549212
PubMed Central:
PMC7217019

46. Effect of rooting hormone and media on root induction in poinsettia (Euphorbia pulcherrima Willd.)

Author:
B.B. Chaudhari; Dipal Bhatt; S.L. Chawla; M.A. Patel; Parvathi Bennurmath
Source:
Journal of Ornamental Horticulture 2018 v.21 no.1and2 pp. 7-12
ISSN:
2249-880X
Subject:
Euphorbia pulcherrima; indole butyric acid; leaves; planting; root cuttings; rooting; roots; sand; soil; sprouting
Abstract:
... An experiment was carried out to study the effect of different concentrations of IBA and rooting media on root induction of poinsettia (Euphorbia pulcherrima Willd). The experiment was laid out in factorial Completely Randomized Design (FCRD) with sixteen treatment combinations consisting four levels of IBA and four different types of media. Among the various levels of IBA, 4000 ppm IBA (C₃) was m ...
DOI:
10.5958/2249-880X.2018.00002.6

47. First interception of Bemisia tabaci Mediterranean (Q biotype) in Serbia

Author:
A. Konjević; Ž. Milovac; S. Kontsedalov; S. Kanakala; M. Ghanim
Source:
Journal of applied entomology 2018 v.142 no.6 pp. 627-631
ISSN:
0931-2048
Subject:
Bemisia tabaci; Brassica napus; Brassica oleracea; DNA; Euphorbia pulcherrima; Helianthus annuus; Hibiscus; Trialeurodes vaporariorum; biotypes; cabbage; crops; cytochrome-c oxidase; genes; geographical distribution; greenhouses; insect pests; kale; monitoring; nucleotide sequences; ornamental plants; plant viruses; quarantine; sequence analysis; Ontario; Serbia
Abstract:
... The whitefly Bemisia tabaci (Gennadius) is a cosmopolitan insect pest and causes great damage to many agricultural crops by direct feeding, and transmitting many plant viruses causing disastrous effects. The global distribution of B. tabaci was previously investigated, but so far, it has not been confirmed in Serbia. Sampling conducted on plants at three localities in Serbia revealed the presence ...
DOI:
10.1111/jen.12508

48. Fitness Attributes of Pythium aphanidermatum with Dual Resistance to Mefenoxam and Fenamidone

Author:
E. C. Lookabaugh; J. P. Kerns; M. A. Cubeta; B. B. Shew
Source:
Plant disease 2018 v.102 no.10 pp. 1938-1943
ISSN:
0191-2917
Subject:
Euphorbia pulcherrima; Pythium aphanidermatum; active ingredients; cytochrome b; fenamidone; floriculture crops; genes; greenhouses; hyphae; mefenoxam; mycelium; oospores; phenotype; point mutation; production technology; quinones; root rot; temperature; North Carolina
Abstract:
... Pythium aphanidermatum is the predominant species causing Pythium root rot on commercially grown poinsettias in North Carolina. Resistance to mefenoxam is common in populations of P. aphanidermatum but resistance to fenamidone and other quinone outside inhibitor fungicides has only just been reported in greenhouse floriculture crops. The in vitro sensitivity to the label rate of mefenoxam (17.6 μl ...
DOI:
10.1094/PDIS-01-18-0043-RE

49. High anthocyanin accumulation in poinsettia leaves is accompanied by thylakoid membrane unstacking, acting as a photoprotective mechanism, to prevent ROS formation

Author:
Julietta Moustaka; Emmanuel Panteris; Ioannis-Dimosthenis S. Adamakis; Georgia Tanou; Anastasia Giannakoula; Eleftherios P. Eleftheriou; Michael Moustakas
Source:
Environmental and experimental botany 2018 v.154 pp. 44-55
ISSN:
0098-8472
Subject:
Euphorbia pulcherrima; anthocyanins; ascorbate peroxidase; biosynthesis; hydrogen peroxide; leaves; mesophyll; photosystem II; plastoquinones; radiation resistance; superoxide dismutase; thylakoids; vacuoles
Abstract:
... In poinsettia (Euphorbia pulcherrima Willd. ex Klotzsch.), green leaves turn reddish and then red, due to vacuolar anthocyanin accumulation. Reddish leaves accumulate anthocyanins mainly in the adaxial (upper) epidermis, and less in the mesophyll cells, while red, in both adaxial and abaxial (lower) epidermides, and the adjacent mesophyll cells. In green leaves, the photoprotective mechanism of no ...
DOI:
10.1016/j.envexpbot.2018.01.006

50. Impact of environmental factors on seed germination and emergence of wild poinsettia (Euphorbia geniculata Ortega)

Author:
Amnon Cochavi; Yaakov Goldwasser; Alon Horesh; Karam Igbariya; Ran N. Lati
Source:
Crop protection 2018 v.114 pp. 68-75
ISSN:
0261-2194
Subject:
Euphorbia pulcherrima; Weibull statistics; environmental factors; field crops; greenhouse experimentation; growth chambers; heat sums; irrigated farming; models; noxious weeds; orchards; osmotic pressure; pH; photoperiodism; seed germination; sodium chloride; soil; temperature; Israel
Abstract:
... Wild poinsettia (Euphorbia geniculata Ortega) is an annual noxious weed that is considered as a substantial problem in irrigated field crops and orchards in Israel. The effect of environmental factors on germination and emergence of a local wild poinsettia population was examined in growth chambers and greenhouse experiments, and its germination dynamics was modelled. Germination was not affected ...
DOI:
10.1016/j.cropro.2018.08.019

51. Low substrate pH can affect plant growth without inducing leaf symptomology of petunia and poinsettia

Author:
B. E. Whipker; W. G. Owen; I. McCall; B. E. Jackson
Source:
Acta horticulturae 2019 no.1266 pp. 255-260
ISSN:
0567-7572
Subject:
Euphorbia pulcherrima; Petunia; diet-related diseases; dolomitic limestone; growers; iron; leaves; monitoring; pH; peat; perlite; plant growth; tissue analysis; toxicity
Abstract:
... Diagnosing plant nutritional disorders requires knowing the critical pH ranges and visual symptoms. Two experiments were conducted incorporating increasing rates of dolomitic lime to an 80% peat + 20% perlite substrate (v:v) to establish substrate pH ranges for assessing plant growth. In Experiment 1, petunia ‘Single Picobella Rose Star’ (RS; Petunia milliflora) and ‘Prostrate Easy Wave Neon Rose’ ...
DOI:
10.17660/ActaHortic.2019.1266.36

52. Multilocus sequence analysis reveals a novel phylogroup of Xanthomonas euvesicatoria pv. perforans causing bacterial spot of tomato in Iran

Author:
E. Osdaghi; S. M. Taghavi; R. Koebnik; J. R. Lamichhane
Source:
Plant pathology 2018 v.67 no.7 pp. 1601-1611
ISSN:
0032-0862
Subject:
Euphorbia pulcherrima; Xanthomonas; alfalfa; essential genes; haplotypes; monophyly; multilocus sequence typing; nucleotide sequences; pathovars; statistical analysis; tomatoes; Iran; Nigeria
Abstract:
... A multilocus sequence analysis (MLSA) was performed on five housekeeping genes (fusA, gapA, gltA, lacF and lepA) of 22 Xanthomonas euvesicatoria strains recently isolated from alfalfa, pepper and tomato plants in Iran. In addition, 161 strains isolated worldwide from pepper, poinsettia, rose and tomato plants were included in the analysis. All X. euvesicatoria pv. perforans isolates from tomato pl ...
DOI:
10.1111/ppa.12864

53. Quantification of Poinsettia Root Growth by Image Scans or X-ray Computed Tomography Scans in Three Propagation Substrates at Varied Moisture Levels

Author:
Erin J. Yafuso; Paul R. Fisher; Ana C. Bohórquez
Source:
Communications in soil science and plant analysis 2019 v.50 no.18 pp. 2354-2367
ISSN:
1532-2416
Subject:
Euphorbia pulcherrima; X-radiation; air; computed tomography; foams; growth chambers; image analysis; peat; plant cuttings; rockwool; root growth; rooting; volumetric water content; water content
Abstract:
... The objective was to refine protocols to quantify rooting of plant cuttings and the water/air microenvironment of substrates using x-ray computed tomography (CT). Poinsettia (Euphorbia pulcherrima) cuttings were propagated in three substrates (peat, rockwool, and phenolic foam) at varied moisture levels. In Experiment 1, adventitious rooting occurred in cuttings grown in rockwool or foam from 12% ...
DOI:
10.1080/00103624.2019.1659305

54. Relationship between chlorophyll meter readings and nitrogen in poinsettia leaves

Author:
Bruce L. Dunn; Hardeep Singh; Carla Goad
Source:
Journal of plant nutrition 2018 v.41 no.12 pp. 1566-1575
ISSN:
1532-4087
Subject:
Euphorbia pulcherrima; chlorophyll; leaves; nitrogen; plant development
Abstract:
... Chlorophyll meters are used for non-destructive estimation of leaf nitrogen (N). The objective of this study was to evaluate the readings with several chlorophyll meters (SPAD-502, atLEAF, and CCM-300), different sampling sites on leaves, number of leaves used for sampling, and different types of leaf N sampling on estimation of N in leaves of potted poinsettia (Euphorbia pulcherrima) “Prestige Re ...
DOI:
10.1080/01904167.2018.1459697

55. Silicon Affects Root Development, Tissue Mineral Content, and Expression of Silicon Transporter Genes in Poinsettia (Euphorbia pulcherrima Willd.) Cultivars

Author:
Jiangtao Hu; Xuan Cai; Byoung Ryong Jeong
Source:
Plants 2019 v.8 no.6 pp. -
ISSN:
2223-7747
Subject:
Euphorbia pulcherrima; air temperature; boron; cultivars; genes; magnesium; mineral content; plant cuttings; potassium silicates; relative humidity; roots; shade; shoots; silicon; sulfur; zinc
Abstract:
... The effects of silicon (Si) on root development, mineral content, and expression of Si transporter genes in Euphorbia pulcherrima Willd. ‘Flame’, ‘Mable Bell’, ‘Green Star’, ‘Pink Bell’, and ‘Peach Bowl’ cultivars were investigated in this study. Stem cuttings in a propagation bench were drenched regularly with a solution containing eithe ...
DOI:
10.3390/plants8060180
PubMed:
31213031
PubMed Central:
PMC6630514

56. Simulated storage causes carbohydrate loss and rooting differences in two poinsettia cultivars

Author:
Nathan J. Jahnke; John M. Dole; Hamid Ashrafi
Source:
Canadian journal of plant science 2019 v.100 no.4 pp. 459-462
ISSN:
1918-1833
Subject:
Euphorbia pulcherrima; cultivars; fructose; glucose
Abstract:
... Unrooted cuttings of ‘Prestige Red’ and ‘White Star’ poinsettias (Euphorbia pulcherrima Willd. ex Klotzsch) were stored in a box at 10 °C for 0, 2, 4, 6 or 8 d to simulate shipping and holding. Visual root ratings decreased following ≥4 d of storage but did not differ from the non-stored cuttings. Root rating of ‘White Star’ was 0.5 higher and cuttings maintained higher fructose and glucose concen ...
DOI:
10.1139/cjps-2019-0232

57. Time in propagation and photosynthetic photon flux affect water demand of unrooted poinsettia cuttings prior to root initiation

Author:
P. O. Alem; J. E. Faust
Source:
Acta horticulturae 2019 v. no.1263 pp. 105-110
ISSN:
0567-7572
Subject:
Euphorbia pulcherrima; mists; photons; photosynthesis; plant cuttings; water uptake; water use efficiency; wilting
Abstract:
... Commercial propagators reduce the frequency of mist provided to unrooted poinsettia (Euphorbia pulcherrima) cuttings on a daily basis during the first week in propagation prior to root initiation. This practice suggests that water regulation by the cuttings changes as the cuttings recover from being harvested from the stock plant. The first experiment demonstrated that when cuttings were removed f ...
DOI:
10.17660/ActaHortic.2019.1263.13

58. UV radiation as a tool to control growth, morphology and transpiration of poinsettia (Euphorbia pulcherrima) in variable aerial environments

Author:
Sheona N. Innes; Knut Asbjørn Solhaug; Louise Elisabeth Arve; Sissel Torre
Source:
Scientia horticulturae 2018 v.235 pp. 160-168
ISSN:
0304-4238
Subject:
Euphorbia pulcherrima; biomass; bracts; chlorophyll; cultivars; greenhouse production; growth inhibitors; leaf area; leaves; phenotype; photophase; photosynthesis; plant growth; plant morphology; relative humidity; scotophase; transpiration; ultraviolet radiation
Abstract:
... Greenhouse production of poinsettia calls for strict control of morphological parameters, which may be achieved through the use of chemical growth retardants. Use of such chemicals is becoming restricted thus alternative methods for growth control are needed. Here the effects of UV radiation were tested on Euphorbia pulcherrima (Willd ex. Klotzch) in controlled environment under moderate (60%) and ...
DOI:
10.1016/j.scienta.2018.02.067

59. Wild poinsettia biology and management – determining optimal control with herbicides and propane flaming

Author:
Ran Nisim Lati; Yaakov Goldwasser; Alon Horesh; Karam Igbariya
Source:
Crop protection 2019 v.115 pp. 20-26
ISSN:
0261-2194
Subject:
Euphorbia heterophylla; Euphorbia pulcherrima; control methods; crops; dose response; flowering; germination; glufosinate; glyphosate; irrigation; leaves; models; orchards; pesticide application; phenology; propane; summer; temperature; trifloxysulfuron; weed control; weeds; weight loss
Abstract:
... Wild poinsettia (Euphorbia heterophylla L.) is a troublesome weed in irrigated summer crops and orchards. Data regarding the optimal herbicide rates for control of this weed, the impact of phenology on control efficacy, and non-chemical control methods for this weed are scarce. The objectives of this study were to: conduct dose-response analyses for trifloxysulfuron at 0–11.2 g a. i. ha⁻¹, glyphos ...
DOI:
10.1016/j.cropro.2018.09.002

60. The mini-horhizotron as a tool for assessing disease severity in container grown annuals

Author:
L. E. Kaderabek; B. E. Jackson; W. C. Fonteno
Source:
Acta horticulturae 2019 v. no.1266 pp. 381-388
ISSN:
0567-7572
Subject:
Antirrhinum majus; Bradysia; Euphorbia pulcherrima; Pinus; Pythium aphanidermatum; Sphagnum; annuals; computer software; disease severity; fungus gnats; plant pathology; potting mix; rhizosphere; root diseases; root hairs; root systems; wood chips
Abstract:
... Two experiments were conducted to assess the use of the mini-horhizotron in measuring disease severity of Pythium aphanidermatum on the roots of bedding snapdragons and poinsettias grown in three different horticultural substrates. Plugs of Antirrhinum majus ‘Snapshot Red’ and Euphorbia pulcherrima ‘Angelica White’ were planted in mini-horhizotrons containing either a commercial potting mix or two ...
DOI:
10.17660/ActaHortic.2019.1266.53

61. Bedding plants in the landscape of Athens: data on their use and opinions of citizens and municipal employees concerning their use at various green spaces of the city

Author:
M. Chronopoulou; M. Papafotiou
Source:
Acta horticulturae 2017 no.1189 pp. 59-64
ISSN:
0567-7572
Subject:
Antirrhinum majus; Begonia cucullata var. hookeri; Chrysanthemum carinatum; Cyclamen persicum; Dianthus barbatus; Dimorphotheca sinuata; Euphorbia pulcherrima; Gazania rigens; Matthiola incana; Pelargonium zonale; Petunia hybrida; Salvia splendens; Tagetes erecta; attitudes and opinions; bedding plants; celebrations; exhibitions; green infrastructure; human resources; landscapes; planning; questionnaires; spring; surveys; Greece
Abstract:
... The last decade over 2.250.000 bedding plants were planted at various green spaces in the city of Athens. Especially during the period of the Olympic Games, Athens 2004, 865.000 bedding plants were planted in the city's flowerbeds. The last decade, the most frequently used bedding plant species by the Directorate of Green and Environment of the Municipality of Athens (DGEMA) were: Tagetes erecta, ...
DOI:
10.17660/ActaHortic.2017.1189.11

62. Description of seeds of wild Euphorbia strigosa Hook & Arn from the state of Nayarit, México

Author:
Edna Valdez-Hernández; Porfirio Juárez-López; Martha E. Pedraza-Santos; Bernabé L. Zamora-Becerra; Leonardo Martínez-Cárdenas; María T. Colinas-León
Source:
Temas Agrarios 2017 v.22 no.1 pp. 41-51
ISSN:
2389-9182
Subject:
Euphorbia pulcherrima; color; germination; Mexico
Abstract:
... In Mexico, Euphorbia strigosa has been identified as a species with ornamental potential, as a result of its color and small size (35 cm, is considered a dwarf version of Euphorbia pulcherrima). The difficulty in the conservation of E. strigosa is found in the great variability of its seeds depending on environmental and genotypic conditions where the species grows. Therefore, the objective of the ...
DOI:
https://doi.org/10.21897/rta.v22i1.914

63. Genetic variability of wild poinsettia populations in Brazilian agroecosystems

Author:
Débora Da Silva; Ana Clara de Souza Meirelles; Eliane Rodrigues Monteiro; Adrieli Rodrigues da Costa Nunes; Claudete Aparecida Mangolin; Rubem Silvério de Oliveira Junior; Machado Maria de Fátima Pires da Silva; Fatih Yildiz
Source:
Cogent food & agriculture 2018 v.4 no.1 pp. 1551749
ISSN:
2331-1932
Subject:
DNA; Euphorbia pulcherrima; agroecosystems; biotypes; fields; genetic markers; genetic polymorphism; genetic variation; microsatellite repeats; population structure; soybeans
Abstract:
... The use of molecular markers based on DNA sequences may be a promising strategy for assessing DNA-level genetic diversity in samples of wild poinsettia populations. Inter simple sequence repeat (ISSR) markers were used to assess the population structure and genetic diversity of 10 wild poinsettia populations sampled from soybean fields. A total of 133 DNA segments were amplified with nine ISSR pri ...
DOI:
10.1080/23311932.2018.1551749

64. Identification of DFR as a promoter of anthocyanin accumulation in poinsettia (Euphorbia pulcherrima, willd. ex Klotzsch) bracts under short-day conditions

Author:
Zhanying Gu; Hao Chen; Ruonan Yang; Meihui Ran
Source:
Scientia horticulturae 2018 v.236 pp. 158-165
ISSN:
0304-4238
Subject:
Arabidopsis thaliana; Euphorbia pulcherrima; anthocyanins; biosynthesis; bracts; color; gene overexpression; genes; genetic engineering; genetic improvement; models; ornamental trees; ornamental value; photoperiod; transcriptomics; Mexico
Abstract:
... Poinsettia (Euphorbia pulcherrima, Willd. ex Klotzsch) originated in Mexico is an important ornamental tree in all over the world because its bract color can change from green to red under short-day conditions. In view of this, poinsettia not only has high ornamental value but also is an important model plant in studies on anthocyanin metabolism regulated by photoperiod. In this research, we compa ...
DOI:
10.1016/j.scienta.2018.03.032

65. New invasion of Bemisia tabaci Mediterranean species in Brazil associated to ornamental plants

Author:
Letícia Aparecida de Moraes; Julio Massaharu Marubayashi; Valdir Atsushi Yuki; Murad Ghanim; Vinicius Henrique Bello; Bruno Rossitto De Marchi; Leonardo da Fonseca Barbosa; Laura M. Boykin; Renate Krause-Sakate; Marcelo Agenor Pavan
Source:
Phytoparasitica 2017 v.45 no.4 pp. 517-525
ISSN:
0334-2123
Subject:
Arsenophonus; Begonia; Bemisia tabaci; Euphorbia pulcherrima; Hydrangea; Rickettsia; endosymbionts; flowers; fluorescence in situ hybridization; greenhouses; ornamental plants; polymerase chain reaction; Brazil; East Asia
Abstract:
... In Brazil, the first major invasion event of Bemisia tabaci was that of Middle East–Asia Minor 1 (MEAM1) species, formerly termed as B biotype, which commenced in the 1990s mainly by ornamental plants in São Paulo State. More than two decades after this invasion, the presence of the Mediterranean (MED) species of B. tabaci, formerly Q biotype, was reported in Rio Grande do Sul, the southernmost St ...
DOI:
10.1007/s12600-017-0607-9

66. Occurrence of Coccinellids that Prey on Diaphorina citri (Hemiptera: Liviidae) on Euphorbia heterophylla (Euphorbiaceae) and Chamaecrista fasciculata (Fabaceae) in a South Florida Residential Area

Author:
Joseph M. Patt
Source:
Florida entomologist 2018 v.101 no.1 pp. 131-134
ISSN:
1938-5102
Subject:
Chamaecrista fasciculata; Coelophora; Cryptolaemus montrouzieri; Diaphorina citri; Euphorbia heterophylla; Euphorbia pulcherrima; Harmonia axyridis; arthropods; biological control agents; landscapes; legumes; nectaries; residential areas; Florida
Abstract:
... Adding plant-based nutritional resources to a landscape may help to recruit and retain predaceous and parasitic arthropods. As a first step in determining whether the addition of nectary plants can increase the abundance and diversity of biocontrol agents of Diaphorina citri and psyllid suppression in urban and unmanaged landscapes in southern Florida, the occurrence of coccinellids was recorded o ...
DOI:
10.1653/024.101.0124

67. Predatory efficacy of Dicyphus errans on different prey

Author:
B. L. Ingegno; N. Bodino; A. Leman; G. J. Messelink; L. Tavella
Source:
Acta horticulturae 2017 no.1164 pp. 425-430
ISSN:
0567-7572
Subject:
Dicyphus errans; Echinothrips americanus; Euphorbia pulcherrima; Palearctic region; Trialeurodes vaporariorum; Tuta absoluta; adults; arthropods; biological control agents; eggs; females; functional response models; greenhouses; host plants; introduced species; invasive species; laboratory experimentation; pest control; population dynamics; predation; predator-prey relationships; prey species; pupae; tomatoes
Abstract:
... The Palaearctic predator Dicyphus errans (Hemiptera: Miridae) lives omnivorously on various host plants, preying on a wide range of small arthropods, including some new invasive alien species. These characteristics make it a promising biological control agent (BCA) in organic greenhouses. The capacity of a BCA to find, kill and consume prey plays a fundamental role in trophic interactions and popu ...
DOI:
10.17660/ActaHortic.2017.1164.55

68. Susceptibility of Bradysia difformis1 to Entomopathogenic Nematodes and their Persistence in Substrates Used for Poinsettia Production

Author:
Evert Villanueva-Sánchez; Ariel W. Guzmán-Franco; José Refugio Lomelí-Flores; Raquel Alatorre-Rosas; Carlos A. Ortíz-Solorio; Victor Manuel-Pinto; Clemente Villanueva-Verduzco
Source:
Southwestern entomologist 2017 v.42 no.4 pp. 1015-1026
ISSN:
0147-1724
Subject:
Bradysia; Euphorbia pulcherrima; Heterorhabditis bacteriophora; Steinernema feltiae; entomopathogenic nematodes; larvae; pupae
Abstract:
... The objective of this study was to evaluate the susceptibility of Bradysia difformis Frey to the entomopathogenic nematodes Heterorhabditis bacteriophora Poinar and Steinernema feltiae Filipjev, as well as the persistence of the nematodes in the substrate used for poinsettia production. No differences were found in the proportion of infection caused by the two nematode species on B. difformis (F₁, ...
DOI:
10.3958/059.042.0420

69. Tropical and subtropical ornamental plant industry in Guangdong province, China

Author:
F. X. Liao; D. R. Wang
Source:
Acta horticulturae 2017 no.1167 pp. 31-36
ISSN:
0567-7572
Subject:
Anthurium; Bromeliaceae; Calathea; Codiaeum; Dracaena; Euphorbia pulcherrima; Ficus; Orchidaceae; Schefflera; business enterprises; ferns and fern allies; floriculture; foliage plants; greenhouses; markets; ornamental plants; plant industry; plantlets; river deltas; rivers; shade; tissue culture; China
Abstract:
... Guangdong, known traditionally as a floriculture province in China, is a key production area and marketplace of tropical and subtropical ornamental plants with about 13,600 ha in growing area with a USD$ 9 billion wholesale value in 2014. The industry started in the 1980s and has boomed since the 1990s. The tropical foliage plants grown in Guangdong include Araceae, Calathea, Ficus, Dracaena, fern ...
DOI:
10.17660/ActaHortic.2017.1167.5

70. The rare orange-red colored Euphorbia pulcherrima cultivar ‘Harvest Orange’ shows a nonsense mutation in a flavonoid 3’-hydroxylase allele expressed in the bracts

Author:
Daria Nitarska; Carmen Stefanini; Christian Haselmair-Gosch; Silvija Miosic; Benjamin Walliser; Maja Mikulic-Petkovsek; Ionela Regos; Ana Slatnar; Thomas Debener; Diro Terefe-Ayana; Vinicius Vilperte; Johannes Hadersdorfer; Karl Stich; Heidi Halbwirth
Source:
BMC plant biology 2018 v.18 no.1 pp. 216
ISSN:
1471-2229
Subject:
Euphorbia pulcherrima; alcohol oxidoreductases; alleles; anthocyanins; bracts; clones; color; complementary DNA; cultivars; cyanidin; frameshift mutation; heterozygosity; nonsense mutation; oxygenases; pelargonidin; stop codon; substrate specificity; taxifolin
Abstract:
... BACKGROUND: Commercially available poinsettia (Euphorbia pulcherrima) varieties prevalently accumulate cyanidin derivatives and show intense red coloration. Orange-red bract color is less common. We investigated four cultivars displaying four different red hues with respect to selected enzymes and genes of the anthocyanin pathway, putatively determining the color hue. RESULTS: Red hues correlated ...
DOI:
10.1186/s12870-018-1424-0
PubMed:
30285622
PubMed Central:
PMC6171185

71. Anaerobically digested dairy fiber in soilless potting media for poinsettias

Author:
John R. Lamont; George C. Elliott
Source:
International journal of recycling of organics waste in agriculture 2016 v.5 no.2 pp. 173-177
ISSN:
2195-3228
Subject:
Euphorbia pulcherrima; Sphagnum; bulk density; byproducts; electrical conductivity; harvesting; income; leaching; leaves; manganese; methane production; nutrient availability; nutrient content; nutrients; pH; peat; phosphates; plant growth; planting; pollution; sodium; water holding capacity; zinc
Abstract:
... PURPOSE: Sphagnum peat moss has been a primary component of soilless potting media for decades. Concerns over the sustainability of harvesting peat have fostered a search for renewable media components. Anaerobically digested dairy fiber (ADDF), a by-product of methane production, shows promise as an alternative to peat. METHODS: Poinsettias (Euphorbia pulcherrima ‘Classic Red’) were grown in medi ...
DOI:
10.1007/s40093-016-0130-x

72. Efficacy of two predatory mite species to control whiteflies infesting poinsettia plants compared to the standard parasitoid Encarsia formosa

Author:
E. Richter
Source:
Acta horticulturae 2017 no.1164 pp. 413-418
ISSN:
0567-7572
Subject:
Bemisia tabaci; Encarsia formosa; Euphorbia pulcherrima; Phytoseiidae; Trialeurodes vaporariorum; larvae; parasitic wasps; pest control; predatory mites
Abstract:
... The two predatory phytoseiid mite species Amblydromalus limonicus (Garman and McGregor) and Transeius montdorensis (Schicha) were tested as alternative for the control of the two whitefly species Trialeurodes vaporariorum (Westwood) and Bemisia tabaci (Gennadius). As standards the parasitoid wasp E. formosa was included as well as a chemical routine treatment. Efficacy of all beneficials to contro ...
DOI:
10.17660/ActaHortic.2017.1164.53

73. Environmental impact in floriculture: LCA approach at farm level

Author:
J. E. Bonaguro; L. Coletto; B. Samuele; G. Zanin; P. Sambo
Source:
Acta horticulturae 2016 no.1112 pp. 419-424
ISSN:
0567-7572
Subject:
Cyclamen persicum; Euphorbia pulcherrima; Pelargonium hortorum; agricultural industry; containers; cost effectiveness; environmental impact; farms; floriculture; global warming; interviews; life cycle impact assessment; life cycle inventory; polypropylenes; rice hulls
Abstract:
... The issue of sustainable floriculture and the continuous and increasing demand for environmentally-friendly products have produced, in recent years, several studies that tried to answer these requests. Simultaneously there is a need to meet the companies requirements for cost reduction and more attractive products. Nowadays, studies with an holistic approach to the problem, for example the evaluat ...
DOI:
10.17660/ActaHortic.2016.1112.56

74. Gibberellic acid promotes flower stem elongation in ‘Renaissance Red’ poinsettia

Author:
Ben A. Bergmann; John M. Dole; Paul Fisher; Geoffrey Njue; Ingram McCall
Source:
Canadian journal of plant science 2016 v.97 no.1 pp. 14-16
ISSN:
1918-1833
Subject:
Euphorbia pulcherrima; adverse effects; flowers; foliar spraying; gibberellic acid; stem elongation
Abstract:
... Gibberellic acid (GA) used as a foliar spray on ‘Renaissance Red’ poinsettia (Euphorbia pulcherrima) greatly increased flower stem length without lengthening production time or other adverse effects. A concentration of 10 mg L⁻¹ GA₃ applied weekly for the five weeks prior to onset of short days was most effective. ...
DOI:
10.1139/cjps-2016-0111

75. How to Start with a Clean Crop: Biopesticide Dips Reduce Populations of Bemisia tabaci (Hemiptera: Aleyrodidae) on Greenhouse Poinsettia Propagative Cuttings

Author:
Rosemarije Buitenhuis; Michael Brownbridge; Angela Brommit; Taro Saito; Graeme Murphy
Source:
Insects 2016 v.7 no.4 pp. -
ISSN:
2075-4450
Subject:
Beauveria bassiana; Bemisia tabaci; Encarsia formosa; Eretmocerus eremicus; Euphorbia pulcherrima; Isaria fumosorosea; Steinernema feltiae; biological control; cutting; greenhouses; growers; insecticidal soaps; mineral oil; mortality; parasitoids; phytotoxicity; risk
Abstract:
... (1) Global movement of propagative plant material is a major pathway for introduction of Bemisia tabaci (Hemiptera: Aleyrodidae) into poinsettia greenhouses. Starting a poinsettia crop with high pest numbers disrupts otherwise successful biological control programs and widespread resistance of B. tabaci against pesticides is limiting growers’ options to control this pest; (2) This study investigat ...
DOI:
10.3390/insects7040048
PubMed:
27681741
PubMed Central:
PMC5198196

76. Isolation of Triterpenoid from Katemas (Euphorbia geniculata Ortega) Stem Extracted using Methanol and Its Toxicity Test

Author:
Eliza Eliza; Ricce Fatsiami; Setiawati Yusuf; Ferlinahayati Ferlinahayati
Source:
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) 2016 v.1 no.1 pp. 19-23
ISSN:
2540-9409
Subject:
Euphorbia pulcherrima; Spodoptera litura; acetates; chemistry; fractionation; lethal concentration 50; lupeol; methanol; mortality; spectroscopy; toxicity
Abstract:
... Katemas (Euphorbia geniculata Ortega) known as (Mexican) Fireplants, Painted Euphorbia, Japanese poinsettia is a plant belong to Euphorbiaceae or spurge family. Traditionally, this plant is used as furgative and treat dysentry. The aims of the research were to evaluate the toxicity and to isolate one of the triterpenoid extracted using methanol from the stem of this plant. The toxicity was evaluat ...
DOI:
10.24845/ijfac.v1.i1.19

77. Non-destructive measurement of nitrogen status of leafy ornamental cuttings by near infrared reflectance spectroscopy (NIRS) for assessment of rooting capacity

Author:
Dieter Lohr; Peter Tillmann; Siegfried Zerche; Uwe Druege; Thomas Rath; Elke Meinken
Source:
Biosystems engineering 2016 v.148 pp. 157-167
ISSN:
1537-5110
Subject:
Chrysanthemum; Euphorbia pulcherrima; adventitious roots; data collection; drying; equations; grinding; least squares; models; near-infrared spectroscopy; nitrogen; nitrogen content; prediction; rooting; screening
Abstract:
... An adequate nitrogen supply to stock plants is a well-known key factor in adventitious root formation of herbaceous ornamental cuttings. Both slight deficiency and luxury amount of nitrogen in the tissue can impair rooting. Due to a lack of fast, cheap and reliable analytical methods, parameters characterising the nitrogen status of cuttings are not used as quality indicators. Near infrared reflec ...
DOI:
10.1016/j.biosystemseng.2016.06.003

78. Organic by-product substrate components and biodegradable pots in the production of Pelargonium ×hortorum Bailey and Euphorbia pulcherrima L.

Author:
G. Zanin; L. Coletto; M. Passoni; C. Nicoletto; S. Bonato; G. Ponchia; P. Sambo
Source:
Acta horticulturae 2016 no.1112 pp. 371-378
ISSN:
0567-7572
Subject:
Euphorbia pulcherrima; Pelargonium hortorum; ammonium nitrogen; biodegradability; bulk density; byproducts; electrical conductivity; nitrate nitrogen; nutrient content; organic matter; pH; peat; peatlands; perlite; porosity; potassium; rice hulls; wastes; water holding capacity; wines
Abstract:
... The need to reduce peatland exploitation has increased demand for materials that can at least partially replace peat in root substrate mixes. In this study four substrates containing 10% perlite, or 10, 30 and 50% rice hulls (RH) (the rest being white peat) were evaluated alone or amended with 20% of the anaerobic digested residues of fruit and wine distillery stillage wastes (ADR). Substrates wer ...
DOI:
10.17660/ActaHortic.2016.1112.50

79. Partial saturation ebb and flow irrigation and silicon to suppress Pythium root rot of poinsettia

Author:
M.N.P. Gent; W.H. Elmer
Source:
Crop protection 2017 v.101 pp. 95-102
ISSN:
0261-2194
Subject:
Euphorbia pulcherrima; Pythium aphanidermatum; drainage water; floors; greenhouses; growers; inoculum; irrigation; plant growth; potassium carbonate; root rot; root systems; silicon
Abstract:
... A greenhouse equipped with two flooded floors with separate reservoirs was used to determine if partial saturation versus more complete saturation of the root medium, with and without silicon addition, could suppress Pythium root rot of poinsettias. The partial saturation floor was designed to deliver and drain water quickly. The control floor operated with longer watering to achieve close to full ...
DOI:
10.1016/j.cropro.2017.07.020
CHORUS:
10.1016/j.cropro.2017.07.020

80. Scheduling propagation year round

Author:
D. Threatt
Source:
Acta horticulturae 2017 no.1174 pp. 331-332
ISSN:
0567-7572
Subject:
Chrysanthemum; Euphorbia pulcherrima; Lilium longiflorum; Rhododendron; Rosa; Viola; annuals; cacti and succulents; crops; ornamental plants; plant propagation; North Carolina
Abstract:
... Baucom’s Nursery is a company in North Carolina that grows a diverse product line. We grow annuals, poinsettias, mums, cactus, ornamentals, Easter lilies, roses, azaleas, pansies, and an assortment of other plants. It is a tremendous challenge to schedule these plants in propagation with our objective to have them saleable at the optimum time. We propagate from cuttings every week of the year. Bel ...
DOI:
10.17660/ActaHortic.2017.1174.66

81. Biodegradable pots for Poinsettia cultivation: Agronomic and technical traits

Author:
Donato Castronuovo; Pietro Picuno; Carlo Manera; Antonio Scopa; Adriano Sofo; Vincenzo Candido
Source:
Scientia horticulturae 2015 v.197 pp. 150-156
ISSN:
0304-4238
Subject:
Euphorbia pulcherrima; biodegradability; color; colorimetry; floriculture; greenhouses; plant fibers; plastics; polyesters; polypropylenes; potted flowering plants; risk; tensile strength; Italy; North America
Abstract:
... A large quantity of plastics is utilized by floriculture and especially for the production of flowering potted plants, where the pot is a very important component of the whole marketable product. Among these, poinsettia (Euphorbia pulcherrima Willd. ex Klotzsch) is a typical example of ornamental potted-plant characterized to have a relatively long crop cycle, a strong demand, especially in Europe ...
DOI:
10.1016/j.scienta.2015.09.025

82. Control of shoot elongation and hormone physiology in poinsettia by light quality provided by light emitting diodes – a minireview

Author:
M. A. Islam; H. R. Gislerod; S. Torre; J. E. Olsen
Source:
Acta horticulturae 2015 v. no.1104 pp. 131-136
ISSN:
0567-7572
Subject:
Euphorbia pulcherrima; abscisic acid; adverse effects; auxins; cryptochromes; cultivars; flowering; gibberellins; greenhouse production; hormone metabolism; hormones; human health; imports; lamps; light quality; ornamental plants; phytochrome; receptors; sodium; supplementary lighting
Abstract:
... In greenhouse culture of poinsettia, which is among the economically most import ornamentals worldwide, control of shoot elongation is essential. Plant growth retardants (PGR) are commonly used in this respect. However, due to the potential negative effects of PGR on human health and the environment, limitation of their use is desirable. Recent developments in light emitting diode (LED) technology ...
DOI:
10.17660/ActaHortic.2015.1104.20

83. Effect of applying calcium chloride and three milk supplements to poinsettia ‘Prestige Red’

Author:
Bruce L. Dunn; T. Cavins; C. Goad
Source:
Journal of plant nutrition 2016 v.39 no.1 pp. 45-50
ISSN:
1532-4087
Subject:
Euphorbia pulcherrima; aluminum; bracts; calcium; calcium chloride; concentrated milk; cultivars; dried milk; foliar application; foliar uptake; petioles; runoff; whole milk; zinc
Abstract:
... Some poinsettia (Euphorbia pulcherrima Willd. ex Klotzsch) cultivars are susceptible to bract calcium (Ca) deficiency in developing bracts. In this study, we evaluated the efficacy of foliar uptake of Ca from milk-based products plus calcium chloride (CaCl ₂) as a potential Ca source. Weekly foliar applications of 237 mL L ⁻¹ whole milk, 80 mL L ⁻¹ powdered milk, 30 mL L ⁻¹ condensed milk, 0.94 g ...
DOI:
10.1080/01904167.2015.1086791

84. Effects of salinity and irrigation management on Poinsettia

Author:
M. P. N. Gent; W. H. Elmer; K. Macherla; R. J. McAvoy
Source:
Acta horticulturae 2015 v. no.1104 pp. 41-48
ISSN:
0567-7572
Subject:
Euphorbia pulcherrima; cultivars; dry matter content; electrical conductivity; fertilizers; irrigation management; salinity; sodium; sodium chloride; stems; toxicity; water content
Abstract:
... Two cultivars of Euphorbia pulcherrima were grown under partial or full saturation irrigation using a standard fertilizer solution, with or without the addition of sodium chloride. At UCONN, the gravimetric water content averaged 250 and 330 g.L-1 prior to irrigation, and 500 and 670 g.L-1 following irrigation, for partial or full saturation regimes, respectively. At crop maturity, the electrical ...
DOI:
10.17660/ActaHortic.2015.1104.7

85. Epidemiological Aspects of Cowpea Bacterial Blight

Author:
Hyanameyka E. de Lima-Primo; Kátia de L. Nechet; Bernardo de A. Halfeld-Vieira; José Rogério de Oliveira; Eduardo S. G. Mizubuti; Giovanni R. de Souza
Source:
Tropical plant pathology 2015 v.40 no.1 pp. 46-55
ISSN:
1983-2052
Subject:
Euphorbia pulcherrima; Xanthomonas axonopodis; bacteria; blight; cowpeas; crop yield; diagnostic techniques; disease severity; greenhouse production; greenhouses; hypersensitivity; indicator species; inoculum; leaf wetness; seeds; soybeans; tropics; Brazil
Abstract:
... Cowpea bacterial blight, caused by Xanthomonas axonopodis pv. vignicola (Xav), can severely reduce the yields of cowpea in tropical regions. Despite its destructiveness, research on the epidemiology of bacterial blight is scarce in Brazil. The objectives of this study were to quantify the effect of the Xav inoculum concentration and of the duration of leaf wetness periods on disease severity, in a ...
DOI:
10.1007/s40858-015-0007-y

86. Growth and development of poinsettia (Euphorbia pulcherrima) finished under reduced air temperature and bench-top root-zone heating

Author:
Madeline W. Olberg; Roberto G. Lopez
Source:
Scientia horticulturae 2016 v.210 pp. 197-204
ISSN:
0304-4238
Subject:
stem elongation; cultivars; flowering; vigor; bracts; Euphorbia pulcherrima; air temperature; heat; finishing; energy conservation; photoperiod; greenhouses
Abstract:
... Greenhouse heating is an essential requirement for holiday poinsettia (Euphorbia pulcherrima Willd. ex Klotzsch.) production, especially during the finish stage. Previous studies have shown that cultivars with early response attributes (short day initiation to finish in 6–8 weeks), moderate to high vigor, and naturally large bracts are most suitable for reduced temperature finishing (RTF) that lea ...
DOI:
10.1016/j.scienta.2016.07.017

87. High temperature affects flowering time and flowering shoot morphology differently in poinsettia

Author:
H. B. Pemberton; R. Kobayashi; W. Roberson
Source:
Acta horticulturae 2015 v. no.1104 pp. 171-176
ISSN:
0567-7572
Subject:
Euphorbia pulcherrima; bracts; color; container-grown plants; cultivars; flowering; greenhouses; heat treatment; leaves; plant morphology; shoots; temperature; Texas
Abstract:
... Six cultivars of poinsettia (Euphorbia pulcherrima Willd. Ex Klotzsch) were grown in greenhouses in Overton, Texas, USA to determine the effects of elevated temperature on flowering time and morphology. Plants were potted in late August and pinched to 4 nodes three weeks later for natural season flowering. Half of the plants were exposed to a high temperature treatment consisting of a daily averag ...
DOI:
10.17660/ActaHortic.2015.1104.26

88. Multilocus Sequence Analysis Reveals Genetic Diversity in Xanthomonads Associated With Poinsettia Production

Author:
Rockey W.; Potnis N.; Timilsina S.; Hong J. C.; Vallad G. E.; Jones J. B.; Norman D. J.
Source:
Plant disease 2015 v.99 no.6 pp. 874-882
ISSN:
0191-2917
Subject:
Aphelandra squarrosa; Euphorbia pulcherrima; Xanthomonas axonopodis; essential genes; genetic variation; growers; hosts; inoculum; leaf spot; multilocus sequence typing; ornamental plants; pathovars; sanitation; virulence; zebras
Abstract:
... Xanthomonas axonopodis pv. poinsettiicola is traditionally identified as the primary causal agent of bacterial leaf spot on poinsettia (family Euphorbiaceae). Sixty-seven strains of xanthomonads isolated from lesions associated with several species within the family Euphorbiaceae were collected over a 64-year period. The pathogenicity of these strains was compared on several potential hosts and th ...
DOI:
10.1094/PDIS-08-14-0867-RE

89. Phyllactinia poinsettiae sp. nov.: A new species of powdery mildew on poinsettia from Indonesia

Author:
Siska A.S. Siahaan; Iman Hidayat; Kartini Kramadibrata; Jamjan Meeboon; Susumu Takamatsu
Source:
Mycoscience 2015 v.56 no.6 pp. 580-583
ISSN:
1340-3540
Subject:
Euphorbia pulcherrima; Phyllactinia; anamorphs; bracts; islands; leaves; new species; powdery mildew; scientific illustration; taxon descriptions; temperate zones; Central America; Indonesia; Mexico
Abstract:
... Poinsettia (Euphorbia pulcherrima, Euphorbiaceae) is a flowering plant indigenous to Mexico and Central America. The poinsettia is largely known for its red bracts and green foliage, and is widely used in winter festivities around temperate regions such as Christmas floral displays. A powdery mildew was found on this plant species in Java and Bali Islands of Indonesia in 2013. Morphological and mo ...
DOI:
10.1016/j.myc.2015.05.005

90. Phytotoxicity and Identification of Secondary Metabolites of Sapindus saponaria L. Leaf Extract

Author:
Patrícia Umeda Grisi; Moacir Rossi Forim; Eveline Soares Costa; Simoni Anese; Marcos Fernando Franco; Marcos Nogueira Eberlin; Sônia Cristina Juliano Gualtieri
Source:
Journal of plant growth regulation 2015 v.34 no.2 pp. 339-349
ISSN:
0721-7595
Subject:
Echinochloa crus-galli; Euphorbia heterophylla; Euphorbia pulcherrima; Sapindus saponaria; bioassays; ethanol; ethyl acetate; fractionation; germination; hexane; leaf extracts; leaves; liquid-liquid extraction; oxyfluorfen; phytotoxicity; root growth; roots; secondary metabolites; seedling growth; seedlings; solubilization
Abstract:
... The aim of this study was to evaluate and quantify the phytotoxic effects of hexane and ethyl acetate fractions obtained from a leaf extract of Sapindus saponaria on the germination and seedling growth of Euphorbia heterophylla (wild poinsettia) and Echinochloa crus-galli (barnyardgrass) and to isolate and identify the major bioactive compounds. A crude ethanol extract was prepared from 100 g of d ...
DOI:
10.1007/s00344-014-9469-2

91. Preconditioning of the generalist herbivore Trialeurodes vaporariorum to greenhouse monocultures and its subsequent performance on wild polycultures

Author:
Irina Ovčarenko; Leena Lindström; Kari Saikkonen; Lauri Jauhiainen; Janne Kaseva; Irene Vänninen
Source:
Entomologia experimentalis et applicata 2016 v.159 no.1 pp. 1-16
ISSN:
0013-8703
Subject:
Cucumis sativus; Euphorbia pulcherrima; Onagraceae; Solanum lycopersicum; Trialeurodes vaporariorum; Urticaceae; adults; crops; cucumbers; greenhouses; habitats; herbivores; host plants; insects; latitude; ornamental plants; pest management; progeny; pupae; species richness; summer; tomatoes; vegetation; wild plants
Abstract:
... Generalist herbivores can face many challenges when choosing their host plant. This can be particularly difficult if their choice and performance are affected by host experience. Greenhouse whitefly, Trialeurodes vaporariorum Westwood (Hemiptera: Aleyrodidae), is an invasive generalist herbivore, which has established in year‐round greenhouses at northern latitudes where it cannot overwinter outdo ...
DOI:
10.1111/eea.12428

92. Sternal gland structures in males of bean flower thrips, Megalurothrips sjostedti, and Poinsettia thrips, Echinothrips americanus, in comparison with those of western flower thrips, Frankliniella occidentalis (Thysanoptera: Thripidae)

Author:
Stephanie Krueger; Sevgan Subramanian; Saliou Niassy; Gerald B. Moritz
Source:
Arthropod structure & development 2015 v.44 no.5 pp. 455-467
ISSN:
1467-8039
Subject:
Euphorbia pulcherrima; Frankliniella occidentalis; Megalurothrips sjostedti; aggregation pheromones; beans; flowers; light microscopy; males; transmission electron microscopy; ultrastructure
Abstract:
... Sternal pores are important features for identification of male thrips, especially within the subfamily Thripinae. They vary in shape, size and distribution even between species of one genus. Their functional role is speculated to be that of sex- and/or aggregation pheromone production. Yet, sexual aggregations are not reported in Echinothrips americanus, known to have sternal pores, while we obse ...
DOI:
10.1016/j.asd.2015.07.002

93. Use of nondestructive sensors to assess nitrogen status in potted poinsettia (Euphorbia pulcherrima L. (Willd. ex Klotzsch)) production

Author:
Rania Basyouni; B.L. Dunn; Carla Goad
Source:
Scientia horticulturae 2015 v.192 pp. 47-53
ISSN:
0304-4238
Subject:
Euphorbia pulcherrima; absorbance; bracts; chlorophyll; cost effectiveness; fertilizer application; flowering; greenhouses; leaves; markets; nitrogen; nitrogen content; nitrogen fertilizers; plant growth; planting; precision agriculture; reflectance; runoff; slow-release fertilizers; soil
Abstract:
... Utilizing precision farming techniques in a greenhouse setting to manage plant site-specific nitrogen (N) needs can help to prevent N deficiency, increase final plant quality, reduce cost of excessive fertilizer, and prevent N runoff. Optical sensors are a fast and nondestructive approach to estimate plant chlorophyll content by measuring the reflectance or absorbance of the green leaves. The obje ...
DOI:
10.1016/j.scienta.2015.05.011

94. Wild poinsettia (Euphorbia heterophylla): an emerging weed in cotton and processing tomato in Greece

Author:
D. Chachalis
Source:
Hellenic Plant Protection Journal 2015 v.8 no.1 pp. 27-32
ISSN:
1791-3691
Subject:
Euphorbia heterophylla; Euphorbia pulcherrima; cotton; dormancy; field experimentation; mature plants; seed germination; seeds; soil depth; temperature; tomatoes; weed control; Greece
Abstract:
... Euphorbia heterophylla (wild poinsettia) is reported as an emerging weed in cotton and processing tomato in Kopaida plain, region of Viotia, in central Greece. This is the first record of E. heterophylla in tomato crop in Greece. In a field experiment, mature plants grown under weed-free conditions produced on average 19 heads, 64 capsules, and 192 seeds per individual plant. Mature seeds exhibite ...
DOI:
10.1515/hppj-2015-0005

95. The stock plant irradiance environment influences stem breakage of flowering poinsettias (Euphorbia pulcherrima)

Author:
J. E. Faust; E. Will; P. C. Korczynski
Source:
Acta horticulturae 2015 v. no.1104 pp. 137-142
ISSN:
0567-7572
Subject:
Euphorbia pulcherrima; flowering; greenhouses; light intensity
Abstract:
... Experiments were conducted to determine the effect of the stock plant environment on the stem breakage of poinsettia (Euphorbia pulcherrima Willd. 'Freedom Red') that occurs on the lateral stems that develop following the propagation and pinching of the cuttings removed from those stock plants. In the first experiment, stock plants were grown in greenhouses under ambient irradiance or 50% irradian ...
DOI:
10.17660/ActaHortic.2015.1104.21

96. Aerial environment and light quality during production affect postharvest transpiration of ornamentals

Author:
L. E. Arve; M. T. Terfa; A. Suthaparan; M. S. Poudel; H. R. Gislerod; J. E. Olsen; S. Torre
Source:
Acta horticulturae 2015 v. no.1104 pp. 197-204
ISSN:
0567-7572
Subject:
Euphorbia pulcherrima; Hydrangea macrophylla; Rosa; air; blue light; carbon dioxide; climate; humidity; lamps; light quality; ornamental plants; sodium; stomata; transpiration; ultraviolet radiation
Abstract:
... In this study preharvest and postharvest transpiration were measured in the economically important ornamentals hydrangea (Hydrangea macrophylla), poinsettia (Euphorbia pulcherrima) and pot rose (Rosa × hybrida). Pot plants were produced under different air humidity regimes in combination with different CO2 concentrations and light qualities (visible light and UV radiation). The aim was to evaluate ...
DOI:
10.17660/ActaHortic.2015.1104.30

97. Bemisia tabaci Biotype Q Determined for the First Time on Poinsettia Crops in Finland and Sweden

Author:
Lemmetty Anne; Vänninen Irene
Source:
Annales zoologici Fennici 2014 v.51 no.6 pp. 501-506
ISSN:
0003-455X
Subject:
Bemisia tabaci; DNA; Euphorbia pulcherrima; adults; biotypes; crops; ethanol; greenhouses; insecticides; pest control; pests; polymerase chain reaction; quarantine; restriction fragment length polymorphism; sticky traps; Finland; Sweden
Abstract:
... We surveyed 13 Finnish and 13 Swedish poinsettia greenhouses in 2006 for Bemisia tabaci biotype Q (currently B. tabaci Mediterranean) and determined the biotype status of B. tabaci populations with PCR followed by an RFLP assay. We collected approximately 100 adult whiteflies from yellow sticky traps or from plants and stored them in 80% ethanol until DNA extraction. Total nucleic acids of two to ...
DOI:
10.5735/086.051.0605

98. Characterization of droplet impact and deposit formation on leaf surfaces

Author:
Xiang Dong; Heping Zhu; Xuejun Yang
Source:
Pest management science 2015 v.71 no.2 pp. 302-308
ISSN:
1526-498X
Subject:
Dracaena fragrans; Euphorbia pulcherrima; Zea mays; biological control; droplets; hydrophilicity; hydrophobicity; leaves; mechanics; nonionic surfactants; pesticides; wastes
Abstract:
... BACKGROUND: Elucidation of droplet dynamic impact and deposit formation on leaf surfaces would assist in modifying application strategies potentially to improve biological control efficiency and minimize pesticide waste. RESULTS: The mechanics of the three‐dimensional droplet impact and formation process on hydrophilic and hydrophobic leaf surfaces was investigated with a system that independently ...
Handle:
10113/61404
DOI:
10.1002/ps.3806
CHORUS:
10.1002/ps.3806

99. Cultivars of Euphorbia pulcherrima from Mexico

Author:
M. T. Colinas; A. Espinosa; J. Mejia; M. A. Rodriguez; M. L. Perez; I. Alia-Tejacal
Source:
Acta horticulturae 2015 v. no.1104 pp. 487-490
ISSN:
0567-7572
Subject:
Euphorbia pulcherrima; bracts; branching; certification; color; crossing; cultivars; deformation; flowering; gardens; greenhouse production; growers; growth regulators; guidelines; new variety; nutrition; parks; petioles; prices; seeds; Mexico
Abstract:
... We have collected plants and seeds of heliophytic cultivars of Euphorbia from different states, mainly: Guerrero, Morelos, Mexico, Colima, Oaxaca, and Chiapas. This material was propagated and maintained under greenhouse conditions at the National Autonomous University of Chapingo. We have identified and characterized eight of the most important cultivars, using the UPOV guideline. After morpholog ...
DOI:
10.17660/ActaHortic.2015.1104.70

100. Datos históricos y diversidad genética de las nochebuenas (Euphorbia pulcherrima) del Distrito Federal, México

Author:
Laura Trejo-Hernández; Mark E. Olson-Zúnica; Robert A. Bye-Boettler
Source:
Revista mexicana de biodiversidad 2015 v.86 no.2 pp. 478-485
ISSN:
1870-3453
Subject:
Euphorbia pulcherrima; domestication; gardens; genetic improvement; genetic variation; germplasm; haplotypes; ornamental plants; parks; wild plants; Mexico; Spain
Abstract:
... Poinsettia (Euphorbia pulcherrima) is one of the most economically and culturally important ornamental plants in the world because it is the floral symbol of Christmas. However, little is known about its domestication, genetic diversity and history. This paper analyses the genetic diversity of plants grown in gardens and parks of the Distrito Federal, Mexico, and we compare it with that found in w ...
DOI:
10.1016/j.rmb.2015.04.033