PLANT PHYSIOLOGY
PLANT GROWTH
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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ABA and GA3
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GA3 and ethylene
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IAA and ABA
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ABA and IPA
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Detailed explanation-1: -Ethylene plays a key role in dormancy release in numerous species, the effective concentrations allowing the germination of dormant seeds ranging between 0.1 and 200 L L-1.
Detailed explanation-2: -Gibberellic acid (GA3) is a form of gibberellin that promotes the seed germination or breaks seed dormancy in certain plants.
Detailed explanation-3: -Gibberellins: It breaks the seed dormancy. Promotes germination of seed.
Detailed explanation-4: -GA is required to break seed dormancy leading to its germination. Seed germination is a complex process, controlled by both physical and internal regulating factors. GA plays very important role in controlling and promoting germination in cereal grains and other crop species.