Plant Growth and DevelopmentHard
Question
Hormone responsible for senescence is
Options
A.ABA
B.auxin
C.GA
D.cytokinin
Solution
Senescence is an active genectically controlled developmental process in which cellular structure and macromolecules are broken down and translocated away from the senescing organ (typical leaves) to actively growing reason that serve as nutrient sinks. Senescence is initiated by environmental cues and is regulated by the hormones wg, ABA (Abscisic Acid.)
Higher amount of ABA stops protein and RNA synthesis and accelerating the senescence.
Higher amount of ABA stops protein and RNA synthesis and accelerating the senescence.
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