The growth regulator that retards ageing of plant organs is
Auxin
Cytokinin
Gibberellin
Abscisic acid
A
Gibberellin
B
Auxin
C
Cytokinin
D
Abscisic acid
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Solution
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Cytokinin is the plant growth regulator which promotes cell division. The hormone retards the process of ageing which is known as senescence. There is stimulation for the production of chlorophyll and the fruits and leaves are prevented from falling. There is breaking of the bud dormancy which allows reproductive growth in the plants.
Thus, the correct answer is option C.
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