Plant Growth and DevelopmentHard

Question

Differentiation of shoot is controlled by

Options

A. high gibberellin - cytokinin ratio
B.high auxin - cytokinin ratio
C.high cytokinin - auxin ratio
D.high gibberellin - auxin ratio

Solution

Ratio of cytokinins to auxins controls differentiation. If both of these are present in equal quanti ties, the cells divide but fail to differentiation. If there is more cytokinin than auxin, shoot buds develop. If there is more auxin, then cytokinin, root develop.

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