Plant Growth and DevelopmentHard

Question

A chemical believed to be involved in flowering is

Options

A.gibberellin
B.kinetin
C.florigen
D.IBA

Solution

Chailakhyan (1936) proposed that photoperiodic induction produces a chemical complex ′florigen′ for flowering. It is synthesized in the older leaves and then transferred to the growing region where it initiates the floral bud initiation. However, florigen has bot been extracted, nor identified till now.

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