scholarly journals Seed dormancy and germination characteristics of common alder (Alnus glutinosa L.) indicate some potential to adapt to climate change in Britain

2009 ◽  
Vol 82 (5) ◽  
pp. 573-582 ◽  
Author(s):  
P. G. Gosling ◽  
S. A. McCartan ◽  
A. J. Peace
Keyword(s):  
Climate Change ◽  
Seed Dormancy ◽  
Alnus Glutinosa ◽  
Germination Characteristics ◽  
Seed Dormancy And Germination

scholarly journals Regulation of Seed Dormancy and Germination Mechanisms in a Changing Environment

2021 ◽  
Vol 22 (3) ◽  
pp. 1357
Author(s):  
Ewelina A. Klupczyńska ◽  
Tomasz A. Pawłowski
Keyword(s):  
Climate Change ◽  
Seed Germination ◽  
Seed Dormancy ◽  
Environmental Conditions ◽  
Global Climate ◽  
Plant Evolution ◽  
Suitable Habitat ◽  
Climate Change Scenarios ◽  
Adaptation Mechanism ◽  
Seed Dormancy And Germination

Environmental conditions are the basis of plant reproduction and are the critical factors controlling seed dormancy and germination. Global climate change is currently affecting environmental conditions and changing the reproduction of plants from seeds. Disturbances in germination will cause disturbances in the diversity of plant communities. Models developed for climate change scenarios show that some species will face a significant decrease in suitable habitat area. Dormancy is an adaptive mechanism that affects the probability of survival of a species. The ability of seeds of many plant species to survive until dormancy recedes and meet the requirements for germination is an adaptive strategy that can act as a buffer against the negative effects of environmental heterogeneity. The influence of temperature and humidity on seed dormancy status underlines the need to understand how changing environmental conditions will affect seed germination patterns. Knowledge of these processes is important for understanding plant evolution and adaptation to changes in the habitat. The network of genes controlling seed dormancy under the influence of environmental conditions is not fully characterized. Integrating research techniques from different disciplines of biology could aid understanding of the mechanisms of the processes controlling seed germination. Transcriptomics, proteomics, epigenetics, and other fields provide researchers with new opportunities to understand the many processes of plant life. This paper focuses on presenting the adaptation mechanism of seed dormancy and germination to the various environments, with emphasis on their prospective roles in adaptation to the changing climate.

Seed dormancy and germination characteristics ofGaura parviflora, an exotic weed species in China

2014 ◽  
Vol 34 (24) ◽  
Author(s):  
刘龙昌 LIU Longchang ◽  
徐蕾 XU Lei ◽  
冯佩 FENG Pei ◽  
董雷鸣 DONG Leiming ◽  
张媛媛 ZHANG Yuanyuan
Keyword(s):  
Seed Dormancy ◽  
Weed Species ◽  
Germination Characteristics ◽  
Seed Dormancy And Germination

Seed dormancy and germination in Rhexia mariana var. interior (Melastomataceae) and eco-evolutionary implications

1999 ◽  
Vol 77 (4) ◽  
pp. 488-493 ◽  
Author(s):  
Carol C Baskin ◽  
Jerry M Baskin ◽  
Edward W Chester
Keyword(s):  
Seed Dormancy ◽  
Climatic Conditions ◽  
Eastern North America ◽  
Temperate Region ◽  
High Germination ◽  
Germination Characteristics ◽  
Physiological Dormancy ◽  
Plant Families ◽  
Dormancy Cycles ◽  
Seed Dormancy And Germination

Ninety-seven percent of the Rhexia mariana L. seeds collected in Tennessee were physiologically dormant at maturity in autumn, and they became nondormant during stratification. Light was required for germination, and seeds germinated to higher percentages on filter paper than on sand. Seeds buried in soil in October 1992 and 1994 and exposed to natural seasonal temperatures were exhumed and tested for germination at monthly or bimonthly intervals for 30 and 32 months, respectively. Seeds gained the ability to germinate to 80% or more at 30:15 and 35:20°C during the first winter of burial and also at 25:15°C during the second winter, but they did not re-enter dormancy. In contrast, seeds incubated at 20:10°C exhibited an annual cycle of moderate to high germination percentages in winter-spring and low germination percentages in summer-autumn. Thus, germination can occur at habitat temperatures in Tennessee from April to September. This is the first report of physiological dormancy in seeds of the Melastomataceae in the temperate region. Like members of many plant families in temperate eastern North America, seeds of R. mariana (i) show a decrease in the minimum temperature for germination as they come out of dormancy and (ii) exhibit some seasonal variation in the temperature range for germination. Thus, these dormancy or germination characteristics appear to be adaptations of species to the climatic conditions in temperate eastern North America.Key words: seed dormancy, seed germination, dormancy cycles, buried seeds, Melastomataceae, Rhexia.

Seed dormancy and germination inVitis amurensisand its variation

2011 ◽  
Vol 21 (4) ◽  
pp. 255-265 ◽  
Author(s):  
W.Q. Wang ◽  
S.Q. Song ◽  
S.H. Li ◽  
Y.Y. Gan ◽  
J.H. Wu ◽  
...  
Keyword(s):  
Seed Dormancy ◽  
Vitis Amurensis ◽  
Dormancy Release ◽  
Temperature Dependent ◽  
Seed Moisture Content ◽  
Seed Moisture ◽  
Germination Characteristics ◽  
Species Similarity ◽  
Germination Behaviour ◽  
Seed Dormancy And Germination

AbstractThere is little information about seed dormancy release and germination behaviour inVitis amurensis, which is one of the most important wildVitisspecies. This work aimed to investigate the dormancy release and germination characteristics and their variation inV. amurensisseed. Seed dormancy was released by: (1) stratification at 5, 10, 15, 20, 25 and 15/5°C, respectively; (2) stratification at 25°C followed by stratification at 5°C; (3) 5°C stratification before or after seed drying; and (4) stratification at a series of relative humidities (RHs) at 5 and 25°C. The freshly harvested and dormancy-released seeds were germinated at three fluctuating and four constant temperatures. InV. amurensis: (1) dormancy release could occur at temperature ≤ 25°C, but was maximal at 5°C for all varieties; (2) dormancy release and induction occurred simultaneously during stratification; (3) the rates of dormancy release and induction were dependent on temperature; (4) seed moisture content affected dormancy release with a temperature-dependent pattern; (5) seeds germinated better at fluctuating temperature than at constant temperature. However, the optimum condition for stratification and germination, the rates of dormancy release and induction, and the response of seeds to warm stratification, to drying and to germination temperature varied significantly among theV. amurensisvarieties. Our data imply that seed dormancy and germination inV. amurensisnot only have intra-species similarity, but also vary within species, which may be due to differences in environmental conditions at the original growth and cultivated sites.

scholarly journals Seed dormancy and germination characteristics of two Rheum species in the Himalaya-Hengduan Mountains

2017 ◽  
Vol 39 (4) ◽  
pp. 180-186 ◽  
Author(s):  
Deli Peng ◽  
Zhe Chen ◽  
Xiaojian Hu ◽  
Zhimin Li ◽  
Bo Song ◽  
...  
Keyword(s):  
Seed Dormancy ◽  
Hengduan Mountains ◽  
Germination Characteristics ◽  
The Himalaya ◽  
Seed Dormancy And Germination
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