HORTICULTURE SCIENCE
PLANT BIOLOGY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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under ideal conditions.
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under cold conditions.
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in extreme temperatures.
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without water.
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Detailed explanation-1: -Seed dormancy is the state in which seed is unable to germinate, even under ideal growing conditions (Merriam-Webster). Because dormancy can be broken by most ideal growing conditions (different and specific for each species), the seeds germinate when they are the most likely to flourish.
Detailed explanation-2: -A dormant seed will not germinate when it will be exposed to the right environmental conditions (light and water). Seed dormancy can be broken by dry storage or by a cold imbibition (stratification).
Detailed explanation-3: -They remain dormant until certain environmental and physiological changes take place. Some seed just waits for several months in the hope that spring will be there when it germinates. Other seed requires a drop in temperature to turn on certain chemical changes before germination starts.
Detailed explanation-4: -Dormancy is defined as the temporary inability of a viable seed to germinate under favorable environmental conditions (Simpson, 1990). Dormancy helps the seed to survive adverse environmental conditions and at the same time helps in seed dispersal (Snape et al., 2001).
Detailed explanation-5: -Light. Temperature. Hard Seed Coat. Period after ripening. Germination inhibitors. Immaturity of the seed embryo. Impermeability of seed coat to water. Impermeability of seed coat to oxygen. More items