U.S. flag

An official website of the United States government

PubAg

Main content area

You searched for: Subject "flowers" Remove constraint Subject: "flowers"
Start Over

Search

22,790  Search Results

« Previous | 1 - 20 of 22,790 |
Number of results to display per page

Search Results

1. Historical note on the taxonomy of the genus Delphinium L. (Ranunculaceae) with an amended description of its floral morphology

Author:
Espinosa, Felipe; Deroin, Thierry; Malécot, Valéry; Wang, Wei; Pinedo, Myreya; Nadot, Sophie; Jabbour, Florian
Source:
Adansonia 2021 v.43 no.2 pp. 9-18
ISSN:
1280-8571
Subject:
flower morphology; flowers,   etc   ; Adansonia; Delphinium;     Show all 4 Subjects
Abstract:
... Since its first valid description by Linnaeus in 1753, the genus Delphinium L. has undergone numerous taxonomical changes that we synthesize here. The knowledge of the taxonomic history of the genus is essential to clarify its circumscription. For this purpose, we outline its pre-Linnaean taxonomic history, from Dioscorides' translated works dating back to the 16ᵗʰ century to Tournefort's classifi ...
DOI:
10.5252/adansonia2021v43a

2. Identification and Expression of TOP3α in Gerbera hybrida

Author:
Li, Shenchong; Cheng, Ying; Sun, Dan; Ma, Lulin; Li, Mingyang; Li, Fan
Source:
Horticultural plant journal 2021 v.7 no.2 pp. 167-173
ISSN:
2468-0141
Subject:
flower buds; flowers,   etc   ; Arabidopsis; Gerbera; alleles; horticultural crops; meiosis;     Show all 7 Subjects
Abstract:
... Meiotic recombination and the resulting novel allele combinations are fundamental to plant breeding and the identification of superior hybrids. However, the rate of meiotic crossovers is naturally suppressed below its potential ability, which prevents plant breeding efficiency. Nine suppressors of meiotic recombination have been identified in the model plant Arabidopsis and in other crop species. ...
DOI:
10.1016/j.hpj.2020.05.002

3. Do visual traits honestly signal floral rewards at community level?

Author:
Ortiz, Pedro L.; Fernández‐Díaz, Pilar; Pareja, Daniel; Escudero, Marcial; Arista, Montserrat
Source:
Functional ecology 2021 v.35 no.2 pp. 369-383
ISSN:
0269-8463
Subject:
flower color; flower morphology; flower size,   etc   ; color; ecology; evolutionary adaptation; flowers; nectar; phylogeny; pollen; pollinators; sucrose; Mediterranean region;     Show all 13 Subjects
Abstract:
... The high variability observed in floral traits has been interpreted as resulting from the adaptation of plants to pollinators, as the latter present innate preferences for specific floral traits and impose selection over them. However, some pollinators such as bees can learn to associate floral signals with rewards, thus increasing floral constancy on more rewarding flowers. The integration of all ...
DOI:
10.1111/1365-2435.13709

4. Effects of silica nanoparticles and calcium chelate on the morphological, physiological and biochemical characteristics of gerbera (Gerbera jamesonii L.) under hydroponic condition

Author:
Tofighi Alikhani, Tahereh; Tabatabaei, Seyed Jalal; Mohammadi Torkashvand, Ali; Khalighi, Ahmad; Talei, Daryush
Source:
Journal of plant nutrition 2021 v.44 no.7 pp. 1039-1053
ISSN:
1532-4087
Subject:
flower buds; flower color; flowers,   etc   ; Gerbera jamesonii; calcium; hydroponics; leaves; lignin; longevity; nutrient solutions; silica; vase life;     Show all 12 Subjects
Abstract:
... A factorial experiment, in the form of completely randomized design with two factors, was conducted in four replicates to investigate the effects of silica nanoparticles (nanoparticle-SiO₂) and calcium chelate (Ca-chelate) on gerbera (Gerbera jamesonii L.). The first factor was nanoparticle-SiO₂ concentration in nutrient solution (at four levels of 0, 20, 40 and 80 mg L⁻¹) and the second factor wa ...
DOI:
10.1080/01904167.2020.1867578

5. Pectin-derived oligosaccharins effects on flower buds opening, pigmentation and antioxidant content of cut lisianthus flowers

Author:
López-Guerrero, Andrea Griselena; Zenteno-Savín, Tania; Rivera-Cabrera, Fernando; Izquierdo-Oviedo, Humberto; Soriano Melgar, Lluvia de Abril Alexandra
Source:
Scientia horticulturae 2021 v.279 pp. 109909
ISSN:
0304-4238
Subject:
cut flowers; flower size; flowers,   etc   ; Eustoma exaltatum subsp. russellianum; antioxidants; color; elicitors; energy; pigmentation; sucrose; vase life;     Show all 11 Subjects
Abstract:
... Most flower buds do not open after the cut flower has been separate from the plant without having an external energy source. Sugar added in vase solutions usually has positive effects; however, it can also elicit and generate greater senescence. The objective of this paper was to determine the effects of sucrose, another external elicitor such as oligosaccharins, and the synergy of these compounds ...
DOI:
10.1016/j.scienta.2021.109909

6. Floral structure of Mesanthemum radicans (Eriocaulaceae, Poales): morphological and anatomical novelties

Author:
Silva, Arthur de Lima; Stützel, Thomas; Trovó, Marcelo; Coan, Alessandra Ike
Source:
South African journal of botany 2021 v.139 pp. 306-317
ISSN:
0254-6299
Subject:
flower morphology,   etc   ; Eriocaulaceae; Xyridaceae; evolution; Africa;     Show all 5 Subjects
Abstract:
... Mesanthemum is a genus of Eriocaulaceae endemic to Africa whose petals are free at the base and fused from the middle region up to the apex. Detailed studies on its floral morphology are scarce and based only on exsiccates, while the floral anatomy remains understudied. However, information regarding its floral structure is key to understanding the evolution of Eriocaulaceae. We provided details o ...
DOI:
10.1016/j.sajb.2021.03.013

7. Transpiration and leaf growth of gladiolus in response to soil water deficit

Author:
Becker, Camila Coelho; Streck, Nereu Augusto; Gubiani, Paulo Ivonir; Uhlmann, Lilian Osmari; Langner, Josana Andreia; Tomiozzo, Regina; Balest, Darlan Scapini; Petry, Mirta Teresinha
Source:
Scientia horticulturae 2021 v.283 pp. 110031
ISSN:
0304-4238
Subject:
flowers,   etc   ; Gladiolus; cultivars; leaves; soil water; transpiration;     Show all 6 Subjects
Abstract:
... The objective of this study was to evaluate the response of transpiration and leaf growth of gladiolus cultivars to a drying soil represented by the FTSW. Three experiments (E1, E2 and E3) were individually carried out in 20 pots, with four gladiolus cultivars. Plants did not experienced water deficit until they had less than seven leaves in E1, four leaves in E2 and, four and seven leaves in E3. ...
DOI:
10.1016/j.scienta.2021.110031

8. Global patterns and a latitudinal gradient of flower disparity: perspectives from the angiosperm order Ericales

Author:
Chartier, Marion; von Balthazar, Maria; Sontag, Susanne; Löfstrand, Stefan; Palme, Thomas; Jabbour, Florian; Sauquet, Hervé; Schönenberger, Jürg
Source:
Thenew phytologist 2021 v.230 no.2 pp. 821-831
ISSN:
0028-646X
Subject:
flowers,   etc   ; Ericales; biodiversity conservation; evolution; species richness;     Show all 5 Subjects
Abstract:
... Morphological diversity (disparity) is an essential but often neglected aspect of biodiversity. Hence, it seems timely and promising to re‐emphasize morphology in modern evolutionary studies. Disparity is a good proxy for the diversity of functions and interactions with the environment of a group of taxa. In addition, geographical and ecological patterns of disparity are crucial to understand orga ...
DOI:
10.1111/nph.17195

9. Phylogenomics of Gesneriaceae using targeted capture of nuclear genes

Author:
Ogutcen, Ezgi; Christe, Camille; Nishii, Kanae; Salamin, Nicolas; Möller, Michael; Perret, Mathieu
Source:
Molecular phylogenetics and evolution 2021 v.157 pp. 107068
ISSN:
1055-7903
Subject:
flower morphology,   etc   ; ; Gesneriaceae; genes; phylogeny; statistical analysis;     Show all 6 Subjects
Abstract:
... Gesneriaceae (ca. 3400 species) is a pantropical plant family with a wide range of growth form and floral morphology that are associated with repeated adaptations to different environments and pollinators. Although Gesneriaceae systematics has been largely improved by the use of Sanger sequencing data, our understanding of the evolutionary history of the group is still far from complete due to the ...
DOI:
10.1016/j.ympev.2021.107068

10. Degradation and regulation of edible flower pigments under thermal processing: a review

Author:
Xu, Kejing; Zhang, Min; Fang, Zhongxiang; Wang, Bin
Source:
Critical reviews in food science and nutrition 2021 v.61 no.6 pp. 1038-1048
ISSN:
1549-7852
Subject:
edible flowers,   etc   ; antioxidant activity; glycosides; nutrition; temperature;     Show all 5 Subjects
Abstract:
... More and more consumers are aware of the potential health benefits of edible flower pigments. With the increased popularity and broader application of edible flower pigments, their degradation under thermal processing has attracted researchers’ attention, because this may affect the pigment functionalities. At high temperature of thermal processing, polyene pigments are easy to oxidize, degrade an ...
DOI:
10.1080/10408398.2020.1752142

11. Temperature effects on meristem differentiation and flowering date in tuberose (Agave amica L.)

Author:
Fragoso-Jimenez, Javier C.; Silva-Morales, Jaime; Barba-Gonzalez, Rodrigo; Castañeda-Saucedo, Ma. Claudia; Tapia-Campos, Ernesto
Source:
Scientia horticulturae 2021 v.275 pp. 109663
ISSN:
0304-4238
Subject:
flowers,   etc   ; Agave; corms; meristems; ornamental plants;     Show all 5 Subjects
Abstract:
... Tuberose is an ornamental plant of economic importance produced worldwide due to the elegant shape and fragrant flowers. Despite its commercial importance, one of the limitations of tuberose production is control of flowering time, which has not been determined at present. In our research, the flowering time has been evaluated in corms of Agave amica cv. Double, during two production cycles (2017 ...
DOI:
10.1016/j.scienta.2020.109663

12. Ash gourd and its applications in the food, pharmacological and biomedical industries

Author:
Gupta, Prerna; Chikkala, Sivanand; Kundu, Priyanka
Source:
International journal of vegetable science 2021 v.27 no.1 pp. 44-53
ISSN:
1931-5279
Subject:
flowers,   etc   ; Benincasa hispida; fruit peels; fruits; vegetables;     Show all 5 Subjects
Abstract:
... Ash gourd [Benincasa hispida (Thunb.)] is a vegetable used in many countries. More frequently vegetables are being sought to be more than just a source of nourishment; consumers are looking for functional and nutritionally active foods. Normally the entire ash gourd plant, including fruit peel, flower, seed, and leaves are used. Biochemical activity of the fruit includes anti-oxidative, anti-inflam ...
DOI:
10.1080/19315260.2019.1699222

13. Survivorship after flowering and flowering synchronicity of three cultivated Strobilanthes flexicaulis individuals from Iriomote Island, Japan

Author:
Furumoto, Ryo
Source:
Plant species biology 2021 v.36 no.1 pp. 119-125
ISSN:
0913-557X
Subject:
flower buds,   etc   ; Japan; Strobilanthes; perennials; survival rate;     Show all 5 Subjects
Abstract:
... Strobilanthes flexicaulis in Iriomote Island, Japan, is a monocarpic perennial plant, which is thought to be an intermediate evolutionary state from a polycarpic perennial plant to a periodical mass‐flowering plant. It remains unclear whether the intermediate reproductive traits are altered by cutting propagation or disbudding treatment (flower bud removal). To evaluate whether these traits are af ...
DOI:
10.1111/1442-1984.12289

14. Plant secondary metabolism and flower color changes in damask rose at different flowering development stages

Author:
Kanani, Mehran; Chamani, Esmaeil; Shokouhian, Ali Akbar; Torabi-Giglou, Mousa
Source:
Acta physiologiae plantarum 2021 v.43 no.4 pp. 55
ISSN:
0137-5881
Subject:
flower color; flower extracts; flowers,   etc   ; Rosa damascena; apigenin; color; enzyme activity; flowering; kaempferol; metabolism; phenylalanine ammonia-lyase; quercetin; rutin; secondary metabolites; therapeutics;     Show all 15 Subjects
Abstract:
... Secondary metabolites content as well as petal color changes was quantified in flower extract of Rosa damascena Mill. during four flower development stages [(pre-anthesis; PA), (partially open flower; POF), (full open flower; FOF), and (senescent flower; SF)]. Petal brightness was increased at the last stage of flower opening compare to the PA level. An increase in b* value and decrease in a* valu ...
DOI:
10.1007/s11738-021-03200-w

15. Changes in polyamine pattern mediates sex differentiation and unisexual flower development in monoecious cucumber (Cucumis sativus L.)

Author:
Kiełkowska, Agnieszka; Dziurka, Michał
Source:
Physiologia plantarum 2021 v.171 no.1 pp. 48-65
ISSN:
0031-9317
Subject:
female flowers; flower buds; male flowers,   etc   ; Cucumis sativus; agmatine; cadaverine; correlation; cucumbers; embryogenesis; flowering; fruiting; knowledge; leaves; methodology; monoecy; morphogenesis; pollen viability; putrescine; ripening; sexual development; spermidine; spermine;     Show all 22 Subjects
Abstract:
... Changes in the levels of polyamines are associated with fundamental physiological processes such as embryogenesis, induction of flowering, fruit development and ripening, senescence, and responses to environmental stresses, but the role of polyamines in sex differentiation and unisexual flower development has not been deeply studied. To extend the knowledge on the regulatory mechanisms of flowerin ...
DOI:
10.1111/ppl.13197

16. The Structure of Aristolochia tomentosa (Aristolochiaceae) Reproductive Organs

Author:
Nakonechnaya, O. V.; Belova, G. V.; Gorpenchenko, T. Yu.; Kazarin, V. M.; Loktionov, V. M.
Source:
Biology bulletin of the Russian Academy of Sciences 2020 v.47 no.6 pp. 585-592
ISSN:
1062-3590
Subject:
flowers,   etc   ; flowering; pollen; protogyny;     Show all 4 Subjects
Abstract:
... The dynamics of flowering and the structure of the flowers, gynaeceum, and androceum of the rare relict medicinal liana Aristolochia tomentosa Sims. were studied. The flower development from the stage of barely noticeable bud to opening was shown to last for 20 days, and each flower bloomed for five days. The flowers were protogynous. The pollen grains were oblate-spheroidal without apertures, wit ...
DOI:
10.1134/S1062359020050088

17. An Annotated Checklist of the Tumbling Flower Beetles (Coleoptera, Mordellidae) of the Republic of Mordovia, with a Short Review of the Family in European Russia

Author:
Zemoglyadchuk, A. V.; Ruchin, A. B.; Egorov, L. V.
Source:
Entomological revue 2020 v.100 no.6 pp. 771-787
ISSN:
0013-8738
Subject:
flowers,   etc   ; Mordellidae; Russia;     Show all 3 Subjects
Abstract:
... Thirty species of Mordellidae were found in 2011–2018 in the Republic of Mordovia. Of them, Mordelli­stena hirtipes Schilsky, 1895, M. michalki Ermisch, 1956, M. rugipennis Schilsky, 1895, and Stenalia ascaniaenovae Lazorko, 1974 are recorded from Russia for the first time, and 21 species are new to the Republic of Mordovia. A preliminary checklist of Mordellidae of European Russia is compiled, co ...
DOI:
10.1134/S0013873820060068

18. A New α-Ionone from Michelia champaca

Author:
Liu, S. L.; Kao, C. L.; Yeh, H. C.; Song, P. L.; Li, H. T.; Chen, C. Y.
Source:
Chemistry of natural compounds 2020 v.56 no.3 pp. 389-391
ISSN:
0009-3130
Subject:
flowers,   etc   ; Magnolia champaca; chemistry;     Show all 3 Subjects
Abstract:
... A new α-ionone, (Z)-4-hydroxy-3,5,5-trimethyl-4-(3′-oxobut-1′-enyl)cyclohex-2-enone (1) was isolated from the flower of Michelia champaca L. The structure of the new α-ionone was elucidated by chemical and physical evidence. ...
DOI:
10.1007/s10600-020-03043-w

19. Biotopic Associations of the Larvae of the Hoverfly Tribe Xylotini (Diptera, Syrphidae: Eristalinae) with Xylobiont Insects

Author:
Krivosheina, N. P.
Source:
Entomological revue 2020 v.100 no.2 pp. 200-212
ISSN:
0013-8738
Subject:
flowers,   etc   ; ; Syrphidae; biotopes; wood;     Show all 5 Subjects
Abstract:
... The ecology of the larvae of flower flies of the tribe Xylotini inhabiting wood substrates is considered. Data on the larval ecology of Chalcosyrphus carbonus Viol. and Ch. femoratus (L.) are given for the first time, and new data are added for 14 more species. Associations with co-occurring xylobiont insects are discovered for the first time. The main and additional biotopes inhabited by Syrphida ...
DOI:
10.1134/S0013873820020086

20. Molecular characterization of a 'Candidatus Phytoplasma asteris'-related strain (16SrI-B / cpn60UT I-IB) affecting daisies (Argyranthemum spp.) in Mexico

Author:
García-Barrera, Laura J.; Flores, Alejandra Chamorro; Zamora, Stefani Aletse Meza; Ortíz-Gamino, Diana; Dumonceaux, Tim J.; Pérez-López, Edel
Source:
Australasian plant disease notes 2021 v.16 no.1 pp. 2
ISSN:
1833-928X
Subject:
flowers,   etc   ; Argyranthemum; chaperonins; computer software; loci; phyllody; sequence analysis; Mexico;     Show all 8 Subjects
Abstract:
... From 2018 to 2019 symptoms consistent with infection by plant pathogenic phytoplasma bacteria were observed in commercial flower greenhouses located in Atlixco, Puebla, Mexico. Two varieties of Argyranthemum spp. plants exhibited symptoms of phyllody, causing serious concerns among farmers. To determine if phytoplasmas were associated with the symptomatic plants, the 16S rRNA-encoding locus (F2nR2 ...
DOI:
10.1007/s13314-020-00415-7