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1. Effect of treatments on seed dormancy breaking, seedling growth, and seedling antioxidant potential of Agrimonia eupatoria L.

Author:
Saffari, Parisa; Majd, Ahmad; Jonoubi, Parissa; Najafi, Farzaneh
Source:
Journal of applied research on medicinal and aromatic plants 2021 v.20 pp. 100282
ISSN:
2214-7861
Subject:
dormancy breaking,   etc   ; Agrimonia eupatoria; alpha-amylase; antioxidant activity; antioxidants; catalase; enzyme activity; gibberellic acid; hypocotyls; medicinal plants; peroxidase; potassium nitrate; seed coat; seed dormancy; seed germination; seedling growth; seedlings; volatile compounds;     Show all 18 Subjects
Abstract:
... Agrimonia eupatoria L. is an important medicinal plant of the Rosaceae family. Antioxidant and volatile components have been identified in this herb. The seed dormancy of A. eupatoria causes time-consuming germination with a low percentage. In this study, the effects of treatments including 4 °C wet cold (24 h and 48 h), seed coat removal, potassium nitrate (0.2 %, 1%, and 3%), and gibberellic aci ...
DOI:
10.1016/j.jarmap.2020.100282

2. Seed Dormancy Breaking and Germination in Bituminaria basaltica and B. bituminosa (Fabaceae)

Author:
Carruggio, Francesca; Onofri, Andrea; Impelluso, Carmen; Giusso del Galdo, Gianpietro; Scopece, Giovanni; Cristaudo, Antonia
Source:
Plants 2020 v.9 no.9
ISSN:
2223-7747
Subject:
dormancy breaking,   etc   ; Bituminaria bituminosa; crops; genetic resources; germination; legumes; light microscopy; maturity stage; pods; seed coat; seed collecting; seed dormancy;     Show all 12 Subjects
Abstract:
... Most legumes are well-known for the physical dormancy of their seeds; hence, the implementation of appropriate scarification techniques is essential for introducing new legume crops within agricultural systems. This study investigated morpho-anatomical traits and dormancy-breaking requirements in two taxa of the genus Bituminaria: the widespread B. bituminosa and the point endemic B. basaltica. As ...
DOI:
10.3390/plants9091110

3. Radio frequency treatment accelerates drying rates and improves vigor of corn seeds

Author:
Xie, Yucen; Zhang, Yue; Xie, Yongkang; Li, Xingyi; Liu, Yanhong; Gao, Zhenjiang
Source:
Food chemistry 2020 v.319 pp. 126597
ISSN:
0308-8146
Subject:
dormancy breaking,   etc   ; Zea mays; air drying; corn; electrodes; enzyme activity; enzymes; germination; heat; radio waves; seeds; specific energy; vigor;     Show all 13 Subjects
Abstract:
... This research explored the application of combined radio frequency and hot air drying (RF-HAD) technology on corn seeds. Drying characteristics and seed vigor were investigated at different RF electrode gaps (140, 150 and 160 mm). To better demonstrate the feasibility of applying RF-HAD on corn seeds, tempering-intermittent hot air drying (HAD) was studied as a comparison. Reduced electrode gap co ...
DOI:
10.1016/j.foodchem.2020.126597

4. Application of the hydrotime model to assess seed priming effects on the germination of rapeseed (Brassica napus L.) in response to water stress

Author:
Tatari, Samaneh; Ghaderi-Far, Farshid; Yamchi, Ahad; Siahmarguee, Asieh; Shayanfar, Ali; Baskin, Carol C.
Source:
Botany 2020 v.98 no.5 pp. 283-291
ISSN:
1916-2804
Subject:
dormancy breaking,   etc   ; Brassica napus; cultivars; dormancy; environmental factors; germination; models; rapeseed; seed priming; seeds; water potential; water stress;     Show all 12 Subjects
Abstract:
... Our aim was to determine whether the parameters of the hydrotime model can be used to compare the effects of seed priming treatments on germination. Seeds of three rapeseed cultivars (‘H61’, ‘H4815’, and ‘DK003’) were exposed to priming treatments and then their germination was tested at different water potentials. Seed priming improved the germination percentage, which was higher in ‘H4815’ than ...
DOI:
10.1139/cjb-2019-0192

5. Flowering in Persian walnut: patterns of gene expression during flower development

Author:
Hassankhah, Amin; Rahemi, Majid; Ramshini, Hossein; Sarikhani, Saadat; Vahdati, Kourosh
Source:
BMC plant biology 2020 v.20 no.1 pp. 136
ISSN:
1471-2229
Subject:
dormancy breaking,   etc   ; breeding programs; cold treatment; crop yield; dormancy; flowering; flowers; fruit set; fruit trees; gene overexpression; growing season; heat; meristems; walnuts; winter; Iran;     Show all 16 Subjects
Abstract:
... BACKGROUND: Flower development and sufficient fruit set are important parameters with respect to walnut yield. Knowledge about flowering genes of fruit trees can help to conduct better molecular breeding programs. Therefore, this study was carried out to investigate the expression pattern of some flowering genes (FT, SOC1, CAL, LFY and TFL1) in Persian walnut (cv. Chandler) during the growing seas ...
DOI:
10.1186/s12870-020-02372-w
PubMed:
32245410
PubMed Central:
PMC7118962

6. Exogenous Gibberellic Acid Advances Reproductive Phenology and Increases Early-Season Yield in Subtropical Blackberry Production

Author:
Lin, Syuan-You; Agehara, Shinsuke
Source:
Agronomy 2020 v.10 no.9
ISSN:
2073-4395
Subject:
dormancy breaking,   etc   ; Rubus; blackberries; budbreak; climatic factors; crop production; cultivars; flowering; fruit growing; fruit quality; fruits; gibberellic acid; growing season; phenology; ripening; subtropics; total soluble solids; winter;     Show all 18 Subjects
Abstract:
... Inadequate winter chill causes poor and erratic budbreak in blackberry (Rubus L. subgenus Rubus Watson), limiting the commercial production in subtropical climates. We examined the effects of exogenous gibberellic acid (GA₃) on the reproductive phenology, fruit number, yield, and fruit quality of three blackberry cultivars (‘Natchez’, ‘Navaho’, and ‘Ouachita’) grown under subtropical climatic cond ...
DOI:
10.3390/agronomy10091317

7. Effects of seed moisture content, stratification and sowing date on the germination of Corylus avellana seeds

Author:
Pipinis, Elias; Stampoulidis, Athanasios; Milios, Elias; Kitikidou, Kyriaki; Akritidou, Sofia; Theodoridou, Stavroula; Radoglou, Kalliopi
Source:
Journal of forestry research 2020 v.31 no.3 pp. 743-749
ISSN:
1007-662X
Subject:
dormancy breaking,   etc   ; Corylus avellana; autumn; drought tolerance; imbibition; nuts; pericarp; permeability; seed germination; seed moisture; seedling emergence; seedlings; seeds; sowing date; spring; water content; water uptake;     Show all 17 Subjects
Abstract:
... For Corylus avellana, pericarp permeability, seed desiccation tolerance, and the effect of warm and cold moist stratification combinations on germination and of outdoor sowing date on dormancy breaking and seedling emergence were investigated. Seeds with (intact fruit nut) and without the pericarp were subjected to an imbibition test, and water uptake was measured. After nuts had been stored for 5 ...
DOI:
10.1007/s11676-018-0852-x

8. Chilling and Heat Requirements of Temperate Stone Fruit Trees (Prunus sp.)

Author:
Fadón, Erica; Herrera, Sara; Guerrero, Brenda I.; Guerra, M. Engracia; Rodrigo, Javier
Source:
Agronomy 2020 v.10 no.3
ISSN:
2073-4395
Subject:
dormancy breaking,   etc   ; Prunus avium; almonds; apricots; biomarkers; cold treatment; cultivars; dormancy; flowers; fruit trees; global warming; growers; heat; new variety; orchards; peaches; plums; spring; temperature; winter; woody plants;     Show all 21 Subjects
Abstract:
... Stone fruit trees of genus Prunus, like other temperate woody species, need to accumulate a cultivar-specific amount of chilling during endodormancy, and of heat during ecodormancy to flower properly in spring. Knowing the requirements of a cultivar can be critical in determining if it can be adapted to a particular area. Growers can use this information to anticipate the future performance of the ...
DOI:
10.3390/agronomy10030409

9. Morphological and physiological characterization of seed heteromorphism in Medicago denticulata Willd.

Author:
Sethi, Renu; Kaur, Navjyot; Singh, Manpreet
Source:
Plant Physiology Reports 2020 v.25 no.1 pp. 107-119
ISSN:
2662-253X
Subject:
dormancy breaking,   etc   ; Medicago; abrasives; dormancy; free amino acids; germination; proteins; scanning electron microscopes; seed coat; soaking; soil; starch; sugars; sulfuric acid; water content;     Show all 15 Subjects
Abstract:
... Under natural conditions, Medicago denticulata produces heteromorphic seeds differing in seed coat colour—cream and brownish black. The present study was conducted in order to determine morphological and physiological differences among heteromorphic seeds of M. denticulata in relation to dormancy and germination behaviour. Brownish black seeds with high moisture content were non-dormant and germin ...
DOI:
10.1007/s40502-019-00496-2

10. GA signaling is essential for the embryo-to-seedling transition during Arabidopsis seed germination, a ghost story

Author:
Hauvermale, Amber L.; Steber, Camille M.
Source:
Plant signaling & behavior 2020 v.15 no.1 pp. 1705028
ISSN:
1559-2324
Subject:
dormancy breaking,   etc   ; Arabidopsis; adults; after-ripening; biosynthesis; color; cotyledons; cutting; flowering; gibberellic acid; juveniles; mutants; phenotype; receptors; seed coat; seed germination; seed stratification; seedlings;     Show all 18 Subjects
Abstract:
... The plant hormone gibberellin (GA) stimulates developmental transitions including seed germination, flowering, and the transition from juvenile to adult growth stage. This study provided evidence that GA and the GA receptor GID1 (GA-INSENSITIVE DWARF1) are also needed for the embryo-to-seedling transition in Arabidopsis. The ga1-3 GA biosynthesis mutant fails to germinate unless GA is applied, whe ...
DOI:
10.1080/15592324.2019.1705028
PubMed:
31960739
PubMed Central:
PMC7012099

11. Synergistic effect of cytokinin and gibberellins stimulates release of dormancy in tea (Camellia sinensis (L.) O. Kuntze) bud

Author:
Thirugnanasambantham, Krishnaraj; Prabu, Gajjeraman; Mandal, Abul Kalam Azad
Source:
Physiology and molecular biology of plants 2020 v.26 no.5 pp. 1035-1045
ISSN:
0971-5894
Subject:
dormancy breaking,   etc   ; Camellia sinensis; buds; crop production; cyclin-dependent kinase; cyclins; cyclophilins; cytokinins; dormancy; foliar application; gene expression; gibberellins; histones; kinetin; meristems; messenger RNA; plant hormones; potassium nitrate; shoots; synergism; tea; thiourea; tubulin; ubiquitination;     Show all 24 Subjects
Abstract:
... Reactivation of dormant meristem in banjhi (dormant) shoots is important to enhance the quality and quantity of tea production. The field grown tea bushes were subjected to treatment with dormancy breaking agents such as potassium nitrate (KNO₃), thiourea, sodium nitro prusside (SNP), the phytohormones kinetin (Kn) and gibberellins (GA). The efficacy of Kn and GA were comparatively lesser than KNO ...
DOI:
10.1007/s12298-020-00786-2
PubMed:
32377051
PubMed Central:
PMC7196570

12. Effects of Physical, Mechanical and Hormonal Treatments of Seed-Tubers on Bud Dormancy and Plant Productivity

Author:
Deligios, Paola A.; Rapposelli, Emma; Mameli, Massimiliano G.; Baghino, Limbo; Mallica, Gian Mario; Ledda, Luigi
Source:
Agronomy 2019 v.10 no.1
ISSN:
2073-4395
Subject:
dormancy breaking,   etc   ; cutting; dormancy; gibberellic acid; harvesting; heat treatment; postharvest storage; seed tubers; storage temperature; vegetative growth;     Show all 10 Subjects
Abstract:
... The aim of this study was to develop a technique easy to apply in order to induce seed-tuber dormancy breakage. Over a two-year study, more than seven dormancy-breaking treatments were tested through evaluating different temperature effects alone or combined with gibberellins application, cutting in half of seed-tubers, and early haulm killing. Three varieties per year were considered: Spunta and ...
DOI:
10.3390/agronomy10010033

13. A Two-Stage Culture Method for Zygotic Embryos Effectively Overcomes Constraints Imposed by Hypocotyl and Epicotyl Seed Dormancy in <i>Paeonia ostii</i> ‘Fengdan’

Author:
Ren, Xiuxia; Liu, Ya; Jeong, Byoung Ryong
Source:
Plants 2019 v.8 no.10
ISSN:
2223-7747
Subject:
dormancy breaking,   etc   ; Paeonia ostii; abscisic acid; benzyladenine; blue light; endosperm; gibberellic acid; hypocotyls; light emitting diodes; light quality; seed dormancy;     Show all 11 Subjects
Abstract:
... The effect of the exogenous hormone and light quality on breaking hypocotyl and epicotyl dormancy was studied. The results showed that the greatest percentage of hypocotyl dormancy breaking was observed with the Murashige and Skoog (MS) medium supplemented with or without 1.0 mg·L−1 gibberellin 3 (GA3), while ABA and endosperm greatly inhibited hypocotyl dormancy breaking. ...
DOI:
10.3390/plants8100356
PubMed:
31547000
PubMed Central:
PMC6843118

14. The Effects of Ascorbic Acid on Breaking the Seed Dormancy of Malus sieversii

Author:
Niu, Junpeng; Zhao, Lei; Fan, Yongmei; Shi, Sangsang; He, Lufang; Hui, Wei
Source:
Journal of plant growth regulation 2019 v.38 no.3 pp. 909-918
ISSN:
0721-7595
Subject:
dormancy breaking,   etc   ; Malus sieversii; alpha-amylase; ascorbic acid; cold; enzyme activity; germination; lactones; lycorine; seed coat; seed dormancy;     Show all 11 Subjects
Abstract:
... The effects of ascorbic acid (ASA) on the seed dormancy of Malus sieversii were investigated in this study. Firstly, the dormant seeds during different periods of cold stratification were stripped of their coats and incubated for 7 d to investigate the germination, endogenous ASA content and L-galactose-1, 4-lactone dehydrogenase (GLDH) activity. In part two, the dormant embryos without coats were ...
DOI:
10.1007/s00344-018-9901-0

15. Maternal and burial environment determine the physical dormancy release in tropical Senna auriculata (Fabaceae) seeds

Author:
Jaganathan, Ganesh K.; Han, Yingying; Song, Danping; Selvam, Panner; Liu, Baolin
Source:
Journal of forestry research 2019 v.30 no.4 pp. 1343-1351
ISSN:
1007-662X
Subject:
dormancy breaking,   etc   ; temperature; seed germination; tropics; Fabaceae; summer; ecosystems; dormancy; seed coat; hot water treatment; seed maturation; India;     Show all 12 Subjects
Abstract:
... In tropical ecosystems, species with an impermeable seed coat, i.e. physical dormancy (PY), are large in number and their seed coat is considered to be an adaptive trait for species persistence and colonization. However, only little is known about their mechanisms for breaking dormancy. The objective of this study was to understand the importance of seed maturation site and burial location in dete ...
DOI:
10.1007/s11676-018-0699-1

16. Effects of seed age and dormancy-breaking treatments on the viability and germination of the Gulf of Saint Lawrence aster (Symphyotrichum laurentianum)

Author:
Kelly, Annika; Lacroix, Christian
Source:
Botany 2019 v.97 no.12 pp. 699-705
ISSN:
1916-2804
Subject:
dormancy breaking,   etc   ; Symphyotrichum laurentianum; cold; germination; gibberellic acid; halophytes; kinetin; seeds; tetrazolium; viability; Gulf of Saint Lawrence; Prince Edward Island;     Show all 12 Subjects
Abstract:
... The Gulf of St. Lawrence aster, Symphyotrichum laurentianum (Fernald) G.L.Nesom (Asteraceae), is a threatened halophyte found only in parts of Atlantic Canada, and seeds are being stored in the seed bank located at the University of Prince Edward Island. It is important to assess the quality of the seeds in storage to ensure their usefulness in the conservation of the species. We tested the effect ...
DOI:
10.1139/cjb-2019-0049

17. Germination Traits in the Threatened Southeastern Grassland Endemic, Marshallia mohrii (Asteraceae)

Author:
Dell, Noah D.; Long, Quinn G.; Albrecht, Matthew A.
Source:
Castanea 2019 v.84 no.2 pp. 212-223
ISSN:
0008-7475
Subject:
dormancy breaking,   etc   ; Asteraceae; autumn; cold; forbs; germination; grasslands; laboratory experimentation; life history; perennials; seed characteristics; seed dormancy; seeds; soil temperature; spring; threatened species; Southeastern United States;     Show all 17 Subjects
Abstract:
... Marshallia mohrii (Asteraceae) is a perennial forb endemic to grasslands in the southeastern United States. Despite having been listed as federally threatened for three decades, little is known about its biology and life history. In this study, we examined the role of light, temperature, seed age, and cold stratification on seed dormancy break and germination in M. mohrii. We also quantified soil ...
DOI:
10.2179/0008-7475.84.2.212

18. The Role of Tillage, Allelopathy, Dormancy-Breaking Mechanisms and Wind in the Spread of Purple Nutsedge (Cyperus rotundus) in Zimbabwe

Author:
Zivanai, Musabayana; Ronald, Mandumbu; Nester, Mashingaidze
Source:
Agricultural research 2019 v.8 no.4 pp. 461-466
ISSN:
2249-720X
Subject:
dormancy breaking,   etc   ; Cyperus rotundus; Sorghum bicolor; allelopathy; corms; cutting; frost; germination; greenhouses; invasive species; leaves; plant extracts; plowing; plows; rhizomes; sprouting; tubers; weeds; wind speed; Zimbabwe;     Show all 20 Subjects
Abstract:
... Purple nutsedge (Cyperus rotundus) is an invasive weed in tropical cultivated lands and propagates through tubers, rhizomes, seed and corms. Weedy invasive plants have unique functional traits that enable their invasiveness. The objectives of this study were to determine the drivers of the purple nutsedge invasion in the Zimbabwe’s agricultural systems among allelopathy, dispersal and dormancy-bre ...
DOI:
10.1007/s40003-018-0385-8

19. Effect of a Late Spring Application of Hydrogen Cyanamide on High-Chill Peaches

Author:
Chen, Chunxian; Beckman, Thomas G.
Source:
Agronomy 2019 v.9 no.11
ISSN:
2073-4395
Subject:
dormancy breaking,   etc   ; Prunus persica; budbreak; buds; cold treatment; flowers; fruit set; fruit weight; genotype; growers; hydrogen cyanamide; peaches; phytotoxicity; shoots; spraying; spring; trees; vegetative growth; winter; Georgia;     Show all 20 Subjects
Abstract:
... Due to a record low chilling accumulation in the winter of 2016–2017, many high-chill peach cultivars displayed almost no budbreak by mid-April of 2017 in central Georgia, USA, where budbreak usually occurs around mid-March. In this study, nine of these peach cultivars were used to study the effect of a late spring Dormex spray application (April 13, 2017) on subsequent budbreak, year-end cu ...
DOI:
10.3390/agronomy9110726

20. Fire effects on seed germination: Heat shock and smoke on permeable vs impermeable seed coats

Author:
Zirondi, Heloiza L.; Silveira, Fernando A.O.; Fidelis, Alessandra
Source:
Flora 2019 v.253 pp. 98-106
ISSN:
0367-2530
Subject:
dormancy breaking,   etc   ; temperature; seed germination; Harpalyce; legumes; smoke; host plants; heat stress; fire regime; Melastomataceae; ecosystems; Mimosa; dormancy; seed coat; cerrado; prediction;     Show all 16 Subjects
Abstract:
... Flammable ecosystems host plants with different strategies in response to fire, such as increasing germination after the exposure to smoke and dormancy breaking by heat shocks. Cerrado is a fire-prone ecosystem, but less is known about fire-related germination cues compared to Mediterranean-like ecosystems. Here, we hypothesize that seeds with a permeable tegument (Melastomataceae) respond positiv ...
DOI:
10.1016/j.flora.2019.03.007