HUMAN PHYSIOLOGY
CONTROL AND COORDINATION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
auxin
|
|
|
Gibberellin Gibberellin
|
|
|
Cytokinin Cytokinin
|
|
|
Ethelene Ethylene
|
Detailed explanation-1: -ABA is considered as a crucial phytohormone for seed dormancy establishment and maintenance. Many of the ABA metabolismâ and signalingârelated genes play a crucial role in the control of seed dormancy.
Detailed explanation-2: -Auxin controls seed dormancy through stimulation of abscisic acid signaling by inducing ARF-mediated ABI3 activation in Arabidopsis.
Detailed explanation-3: -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.
Detailed explanation-4: -Gibberellic acid (GA3) is a form of gibberellin that promotes the seed germination or breaks seed dormancy in certain plants.