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1. 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   ; Fabaceae; dormancy; ecosystems; hot water treatment; seed coat; seed germination; seed maturation; seeds; summer; temperature; tropics; India;     Show all 13 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

2. 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   ; Harpalyce; Melastomataceae; Mimosa; cerrado; dormancy; ecosystems; fire regime; heat stress; host plants; legumes; prediction; seed coat; seed germination; seeds; smoke; temperature;     Show all 17 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

3. The effects of temperature, water availability and seed burial depth on seed germination and seedling establishment of Calobota sericea (Fabaceae)

Author:
Müller, F.L.; Raitt, L.M.; Cyster, L.F.; Cupido, C.F.; Samuels, M.I.; Chimphango, S.B.M.; Boatwright, J.S.
Source:
South African journal of botany 2019 v.121 pp. 224-229
ISSN:
0254-6299
Subject:
dormancy breaking,   etc   ; Calobota; agroecosystems; annuals; buried seeds; greenhouse experimentation; leaves; legumes; plant establishment; rain; seed germination; seedling emergence; seedlings; stems; temperature; water potential; winter; South Africa;     Show all 18 Subjects
Abstract:
... Calobota sericea is a perennial legume species from South Africa that has the potential to be implemented as a fodder crop in water-limited agro-ecosystems. Apart from dormancy breaking requirements, no information regarding the germination and seedling establishment requirements of C. sericea is currently available. Therefore, the aim of this study was to determine the germination and establishme ...
DOI:
10.1016/j.sajb.2018.11.012

4. Thermal thresholds for seed germination in Mediterranean species are higher in mountain compared with lowland areas

Author:
Picciau, Rosangela; Pritchard, Hugh W.; Mattana, Efisio; Bacchetta, Gianluigi
Source:
Seed science research 2019 v.29 no.1 pp. 44-54
ISSN:
1475-2735
Subject:
dormancy breaking,   etc   ; altitude; climate; cold; gibberellic acid; heat sums; highlands; lowlands; microprocessors; models; ripening; sea level; seed germination; seeds; soil temperature; space and time; Sardinia;     Show all 17 Subjects
Abstract:
... Each taxon is characterized by a temperature range over which seed germination is possible and this may vary in space and time in relation to climate and ecological conditions. We used thermal modelling to test the hypothesis that thermal thresholds for seed germination can predict germination timing of Mediterranean species along an altitudinal and environmental gradient. Seeds of 18 species were ...
DOI:
10.1017/S0960258518000399

5. Changes in glutathione and glutathione disulfide content in dormant grapevine buds treated with garlic compound mix to break dormancy

Author:
Orrantia-Araujo, M.A.; Martínez-Téllez, M.A.; Corrales-Maldonado, C.; Rivera-Domínguez, M.; Vargas-Arispuro, I.
Source:
Scientia horticulturae 2019 v.246 pp. 407-410
ISSN:
0304-4238
Subject:
dormancy breaking,   etc   ; Vitis vinifera; buds; cell growth; chilling requirement; cold; cultivars; garlic; glutathione; hydrogen cyanamide; mixing; plant growth; sulfur; table grapes; vines; winter;     Show all 16 Subjects
Abstract:
... The consecutive annual use of a mixture of naturally occurring garlic compounds (GCs) as a dormancy-breaking treatment in table grape (Vitis vinifera L.) cultivars that did not yet meet their chilling requirement has led to an improvement in the productivity of the vines. This study tested the hypothesis that the sulfur molecules contained in the garlic compound mixture stimule an increase in glut ...
DOI:
10.1016/j.scienta.2018.10.064

6. Chilling and heat requirements of 'Tardona', the latest flowering almond cultivar released in the world

Author:
Prudencio, A. S.; Martinez-Gomez, P.; Dicenta, F.
Source:
Acta horticulturae 2019 no.1231 pp. 7-10
ISSN:
0567-7572
Subject:
dormancy breaking,   etc   ; Prunus dulcis; Prunus jacquemontii; almonds; cold; cold treatment; cultivars; dormancy; dynamic models; flowering date; fruit set; genotype; heat; plant breeding; temperature; trees; vegetative growth;     Show all 17 Subjects
Abstract:
... Flowering time is one of the most important traits for almond (Prunus dulcis) breeding and it is determined by the specific chilling and heat requirements of each genotype. After being exposed to periods of low (chill units, CU) and high temperatures (growing degree hours, GDH), the tree is able to break its dormancy, flower and sprout. Chill requirements are calculated according to Richardson and ...
DOI:
10.17660/ActaHortic.2019.1231.2

7. Chilling and heat requirements for flowering in apricot cultivars

Author:
Ruml, M.; Milatovic, D.; Durovic, D.; Zec, G.; Jokic, M.; Radovic, M.
Source:
Acta horticulturae 2018 no.1214 pp. 15-18
ISSN:
0567-7572
Subject:
dormancy breaking,   etc   ; apricots; cold treatment; crop production; cultivars; dormancy; flowering; heat; models; shoots; spring; temperature; Utah;     Show all 13 Subjects
Abstract:
... Chilling requirements for breaking dormancy and heat requirements for flowering were studied in 10 apricot cultivars in the region of Belgrade during a 2‑year period. Chilling requirements were determined using the Utah chill unit (CU) model. To determine the date of dormancy breaking, 1-year-old shoots were collected weekly from December to February and kept under controlled conditions. Heat requ ...
DOI:
10.17660/ActaHortic.2018.1214.3

8. Evaluation of three modelling approaches for almond blooming in Mediterranean climate conditions

Author:
Gaeta, Liliana; Stellacci, Anna Maria; Losciale, Pasquale
Source:
European journal of agronomy 2018 v.97 pp. 1-10
ISSN:
1161-0301
Subject:
dormancy breaking,   etc   ; Mediterranean climate; almonds; climatic factors; cold treatment; dynamic models; flowering; heat; prediction; temperature; Italy;     Show all 11 Subjects
Abstract:
... Chilling and heat requirements for breaking dormancy and flowering were studied in seven almond cultivars in Southern Italy. Chilling portions (CP), computed through the Dynamic model, and growing degree hours (GDH) were used to determine chill and heat accumulation, respectively. Then, using full bloom dates and temperature data from nine seasons (2003/2004-2007/2008 and 2009/2010-2012/2013), thr ...
DOI:
10.1016/j.eja.2018.04.005

9. Improvement of seed dehiscence and germination in ginseng by stratification, gibberellin, and/or kinetin treatments

Author:
Lee, Jung-Woo; Jo, Ick-Hyun; Kim, Jang-Uk; Hong, Chi-Eun; Kim, Young-Chang; Kim, Dong-Hwi; Park, Young-Doo
Source:
Horticulture, environment and biotechnology 2018 v.59 no.3 pp. 293-301
ISSN:
2211-3452
Subject:
dormancy breaking,   etc   ; Panax ginseng; dehiscence; dormancy; embryogenesis; germination; gibberellic acid; kinetin; seeds;     Show all 9 Subjects
Abstract:
... Korean ginseng (Panax ginseng C.A. Meyer) is a largely sought after resource due to its substantial health benefits. However, large-scale culture of ginseng seeds is limited because of its long maturation time and triple-dormancy. To develop new strategies to improve the dehiscence, germination, and breaking dormancy, we investigated the effects of stratification, gibberellin (GA₃), and/or kinetin ...
DOI:
10.1007/s13580-018-0039-6

10. Within population variation in germination response to smoke cues: convergent recruitment strategies and different dormancy types

Author:
Ma, Hongyuan; Wu, Haitao; Ooi, MarkK. J.
Source:
Plant and soil 2018 v.427 no.1-2 pp. 281-290
ISSN:
0032-079X
Subject:
dormancy breaking,   etc   ; Boronia; aerosols; buried seeds; dormancy; fires; germination; heat; risk; smoke;     Show all 10 Subjects
Abstract:
... AIMS: Maintaining variation in germination response provides a selective advantage, by spreading risk during recruitment. In fire-prone regions, physically dormant (PY) species vary their response to dormancy-breaking fire-related heat cues at the intra-population level. However little is known about physiologically dormant (PD) species, which respond to smoke cues. These contrasting dormancy type ...
DOI:
10.1007/s11104-018-3641-6

11. Comparison between two methods of estimation of chilling and heat requirements for flowering in almond

Author:
Gaeta, L.; Stellacci, A. M.; Losciale, P.
Source:
Acta horticulturae 2018 no.1229 pp. 135-142
ISSN:
0567-7572
Subject:
dormancy breaking,   etc   ; almonds; cold treatment; cultivars; dynamic models; flowering; genotype; heat; laboratory experimentation; semiarid zones; statistical models; temperature; weather; Italy;     Show all 14 Subjects
Abstract:
... A precise determination of thermic requirements (chilling and heat) for breaking dormancy is quite difficult under field conditions. However, quantification under laboratory conditions should be considered with caution and it is costly and time consuming when analyzing a large number of genotypes. For this reason, statistical models based on the analysis of historical blooming dates have been deve ...
DOI:
10.17660/ActaHortic.2018.1229.21

12. Onset of flowering in olive cultivars in relation to temperature

Author:
Vuletin Selak, G.; Goreta Ban, S.; Perica, S.
Source:
Acta horticulturae 2018 no.1229 pp. 127-134
ISSN:
0567-7572
Subject:
dormancy breaking,   etc   ; air temperature; coasts; cold treatment; cultivars; flowering date; heat; heat sums; olives; orchards; phenology; trees; Croatia;     Show all 13 Subjects
Abstract:
... The flowering process is adjusted to seasons through environmental signals, particularly photoperiod and temperature. Breaking dormancy, in trees, requires the completion of a period of chilling, which can be measured in hours below a certain temperature threshold. Budburst occurs once a heat requirement of accumulated degree days has been met. The studies of interactions between olive phenology a ...
DOI:
10.17660/ActaHortic.2018.1229.20

13. Germination and morpho-phenological traits of Allium melananthum, a rare species from south-eastern Spain

Author:
Martínez-Díaz, Eulalia; Martínez-Sánchez, Juan J.; Conesa, Encarnación; Franco, José A.; Vicente, María J.
Source:
Flora 2018 v.249 pp. 16-23
ISSN:
0367-2530
Subject:
dormancy breaking,   etc   ; Allium; dormancy; gibberellic acid; growing season; habitats; juveniles; rare species; seed germination; seeds; sowing; temperature; Spain;     Show all 13 Subjects
Abstract:
... The germination and life cycle of the rare species Allium melananthum, endemic to southeast Spain, were investigated. One alternating and four constant temperature regimes and two light conditions were tested. Gibberellic acid and cold or warm stratification were used as dormancy breaking treatments. The results showed that light can inhibit seed germination, although the light inhibitory effects ...
DOI:
10.1016/j.flora.2018.09.005

14. Effects of pretreatments on seed dormancy and germination in endemic Uludağ flax (Linum olympicum Boiss.) (Linaceae)

Author:
Kırmızı, Serap; Güleryüz, Gürcan; Arslan, Hülya
Source:
Horticulture, environment and biotechnology 2018 v.59 no.5 pp. 629-635
ISSN:
2211-3452
Subject:
dormancy breaking,   etc   ; Linum; cold; flax; gibberellic acid; granite; hills; indigenous species; limestone; photoperiod; seed dormancy; seed germination; seeds; Turkey (country);     Show all 14 Subjects
Abstract:
... Linum olympicum Boiss. (Linaceae) is an endemic species to Turkey, and has both medicinal and ornamental properties. In this study, we investigated the effects of GA₃ and cold stratification (1 or 4 months) on the germination and mean germination time in relation to breaking dormancy in this species under darkness (20 °C) and light (20/10 °C, 12/12 h) conditions. Seeds were collected from specimen ...
DOI:
10.1007/s13580-018-0075-2

15. Dormancy breaking and germination requirements of seeds of Thalictrum uchiyamae (Ranunculaceae) with underdeveloped embryos

Author:
Lee, Seung Youn; Rhie, Yong Ha; Kim, Ki Sun
Source:
Scientia horticulturae 2018 v.231 pp. 82-88
ISSN:
0304-4238
Subject:
dormancy breaking,   etc   ; Thalictrum; cold; germination; growing season; landscaping; perennials; seed dormancy; seedling emergence; seedlings; seeds; soaking; soil; temperature;     Show all 14 Subjects
Abstract:
... Thalictrum uchiyamae Nakai is an herbaceous perennial plant that has potential for greater utilization for landscaping and medicinal purposes. In the present study, we investigated some of the factors that affect seed dormancy and germination in this species. To determine the temperature requirements for embryo growth and germination in field conditions, the seeds were buried in field soil. Every ...
DOI:
10.1016/j.scienta.2017.12.004

16. Bleaching and cold stratification can break dormancy and improve seed germination in Cyperaceae

Author:
Rosbakh, Sergey; Hülsmann, Lisa; Weinberger, Irina; Bleicher, Maxi; Poschlod, Peter
Source:
Aquatic botany 2019 v.158 pp. 103128
ISSN:
0304-3770
Subject:
dormancy breaking,   etc   ; Bolboschoenus maritimus; Cladium mariscus; Eleocharis ovata; Eleocharis palustris; Eriophorum; Rhynchospora; Schoenoplectiella; Schoenoplectus; Scirpoides holoschoenus; aquatic plants; bleaching; bleaching agents; cold; dormancy; seed coat; seed germination; seeds; sodium hypochlorite;     Show all 19 Subjects
Abstract:
... Seed germination of sedges is often difficult, due to physiological dormancy and the hard seed coat. It has been proposed that chemical scarification by sodium hypochlorite (‘bleach’) and cold stratification might successfully break this type of dormancy and improve seed germination rates. Yet the choice of the dormancy-breaking conditions in previous studies appears to be arbitrary, resulting in ...
DOI:
10.1016/j.aquabot.2019.103128

17. Effects of gibberellins A4 on budbreak, antioxidant enzymes’ activity and proline content of flower buds in sweet cherry (Prunus avium)

Author:
Cai, Binhua; Wang, Hongxue; Liu, Tianyu; Zhuang, Weibing; Wang, Zhong; Qu, Shenchun; Qin, Yalong
Source:
Acta physiologiae plantarum 2019 v.41 no.6 pp. 88
ISSN:
0137-5881
Subject:
dormancy breaking,   etc   ; Prunus avium; antioxidant activity; ascorbate peroxidase; budbreak; catalase; cold treatment; dormancy; enzyme activity; flower buds; fruit trees; gibberellins; hydrogen cyanamide; hydrogen peroxide; mineral oil; oxidative stress; peroxidase; proline; superoxide dismutase; water treatment; winter;     Show all 21 Subjects
Abstract:
... Chilling accumulation is required for deciduous trees to maintain its normal growth and development. However, warm winters appeared more and more frequently, which hindered severely the normal growth and yield of fruit trees. To avoid these problems, artificial dormancy breaking agents are widely used. In our study, the effect of mineral oil, hydrogen cyanamide and gibberellins A₄ (GA₄) on budbrea ...
DOI:
10.1007/s11738-019-2876-z

18. Validated model for apple flowering prediction in the Mediterranean area in response to temperature variation

Author:
Yaacoubi, Adnane El; Oukabli, Ahmed; Hafidi, Majida; Farrera, Isabelle; Ainane, Tarik; Cherkaoui, Sidi Imad; Legave, Jean-Michel
Source:
Scientia horticulturae 2019 v.249 pp. 59-64
ISSN:
0304-4238
Subject:
dormancy breaking,   etc   ; apples; cold treatment; flowering date; fruit trees; global warming; model validation; models; orchards; phenology; prediction; spring; statistical analysis; temperate zones; temperature; winter; France; Italy; Mediterranean region; Morocco;     Show all 20 Subjects
Abstract:
... Forceasting the phenological stages of fruit trees have a great meaning in term of making decisions about agricultural practices in orchards. Phenological modeling is one of prediction approches that play this role when it concerns flowering stages, particularly in the context of global warming mostly uncertain and continuously in change and the difficult adaptation of fruit trees to the future cl ...
DOI:
10.1016/j.scienta.2019.01.036

19. Smoke-Water Enhances Germination and Seedling Growth of Four Horticultural Crops

Author:
Elsadek, Mohamed A.; Yousef, Eltohamy A. A.
Source:
Plants 2019 v.8 no.4
ISSN:
2223-7747
Subject:
dormancy breaking,   etc   ; Corymbia; Gladiolus; Salix alba; abscisic acid; alpha-amylase; cucumbers; enzyme activity; field experimentation; horticultural crops; lemons; rice straw; rosemary; sage; seed germination; seedling growth; seeds; smoke; tomatoes;     Show all 19 Subjects
Abstract:
... The impact of plant-derived smoke as a promoter of seed germination in many crops is well documented. However, very little is known about (1) the appropriate plant species for smoke-water preparation, (2) the effect of smoke-water on the germination and the post-germination parameters in non-fire-prone environments, and (3) the relative importance of dark and light conditions and their possible ef ...
DOI:
10.3390/plants8040104

20. Dormancy-Breaking and Germination Requirements for Seeds of <i>Sorbus alnifolia</i> (Siebold & Zucc.) K.Koch (Rosaceae), a Mesic Forest Tree with High Ornamental Potential

Author:
Tang, Yuhan; Zhang, Keliang; Zhang, Yin; Tao, Jun
Source:
Forests 2019 v.10 no.4
ISSN:
1999-4907
Subject:
dormancy breaking,   etc   ; Sorbus; ambient temperature; buried seeds; cold; cold treatment; cotyledons; death; forest land; forest trees; germination; gibberellic acid; habitats; seed coat; seed dormancy; seedlings; storage temperature; temperate forests; viability; winter; China;     Show all 21 Subjects
Abstract:
... Sorbus alnifolia (Siebold & Zucc.) K.Koch (Rosaceae) is an economically important tree in the temperate forests of Eastern China. In recent decades, ever-increasing use and modification of forestlands have resulted in major degeneration of the natural habitat of S. alnifolia. Moreover, S. alnifolia seeds germinate in a complicated way, leading to a high cost of propagation. The current study a ...
DOI:
10.3390/f10040319