Now showing items 1-10 of 1179
A framework for the interpretation of temperature effects on dormancy and germination in seed populations showing dormancy
(Cambridge University Press, 2015-06)
Temperature is a key factor affecting both dormancy and germination. In non-dormant seeds, when temperature is within the thermal range permissive for germination, it just regulates germination velocity, while in seeds ...
Dormancy cycling in Polygonum aviculare seeds is accompanied by changes in ABA sensitivity
(Oxford University Press, 2020-07)
Polygonum aviculare seeds shows high levels of primary dormancy (PD). Low winter temperatures alleviate dormancy and high spring temperatures induce seeds into secondary dormancy (SD), naturally establishing stable seedbanks ...
Timing of seed dispersal and seed dormancy in Brazilian savanna: Two solutions to face seasonality
Background and Aims The relationship between fruiting phenology and seed dispersal syndrome is widely recognized; however, the interaction of dormancy classes and plant life-history traits in relation to fruiting phenology ...
The role of seed water content for the perception of temperature signals that drive dormancy changes in Polygonum aviculare buried seeds
(Csiro Publishing, 2020-08)
Seedling emergence in the field is strongly related to the dynamics of dormancy release and induction of the seed bank, which is mainly regulated by soil temperature. However, there is limited information on how ...
Structural aspects of dormancy in quinoa (Chenopodium quinoa): Importance and possible action mechanisms of the seed coats
(Cambridge University Press, 2015-09)
Two possible sources of resistance to pre-harvest sprouting were evaluated in quinoa. They showed dormancy at harvest and significant variations in dormancy level in response to environmental conditions experienced during ...
Thermal regulation of secondary dormancy induction in Polygonum aviculare seeds: A quantitative analysis using the hydrotime model
(Cambridge University Press, 2017-09)
For seed banks showing seasonal changes in their dormancy level, the possibility of predicting temporal patterns of emergence depends on establishing a robust relationship between temperature and the rate of dormancy loss ...
Echinochloa crus-galli seed physiological dormancy and germination responses to hypoxic floodwaters
(Wiley Blackwell Publishing, Inc, 2019-07-06)
Hypoxic floodwaters can seriously damage seedlings. Seed dormancy could be an effective trait to avoid lethal underwater germination. This research aimed to discover novel adaptive dormancy responses to hypoxic floodwaters ...
BREAKING SEED COAT DORMANCY WITH PHYSICAL AND CHEMICAL METHODS IN TAMARIND (TAMARINDUS INDICA L.) SEEDSBREAKING SEED COAT DORMANCY WITH PHYSICAL AND CHEMICAL METHODS IN TAMARIND (TAMARINDUS INDICA L.) SEEDS
(University of Puerto Rico Mayagüez Campus Agricultural Experiment Station, 2013)
Effect of water availability and seed source on physical dormancy break of Vicia villosa ssp. villosa
Physical dormancy (PY) plays a crucial role in the control of the reseeding process of Vicia villosa Roth, a winter annual species cultivated for pasture and hay, naturalized in several semi-arid temperate agroecosystems. ...
Temperature-dependent regulation of induction into secondary dormancy of Polygonum aviculare L. seeds: A quantitative analysis
(Elsevier Science, 2017-05)
In seeds of many summer annuals low temperatures under moist conditions provoke dormancy release while high temperatures induce secondary dormancy. Seed dormancy level establishes the range of temperatures under which ...