Plant Growth and DevelopmentHard

Question

Which of the following induces dormancy ?

Options

A.Auxin
B.Cytokinin
C.Both(a) and (b)
D.A bscisic acid

Solution

A bscisic acid (ABA) induces dormancy. Robinson and Warming (1964), isolated a substance responsible for dormancy in Acer pseudoplatanus, and named it as dormin. This hormone was similar to absicissin it is naturally occurring hormone that is present in all vascular plants and some mosses but is not present in bacteria, algae, fungi and liverworts. This hormone is responsible for dormancy.

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