First slide

Plant Growth Regulators

Question

Apical dominance means:

Easy

A

Growing axillary buds inhibit the growth in apical buds
B

Growing apical buds inhibit the growth in lateral buds
C

Horizontal expansion of plants
D

Extensive growth of lateral branches in plants

Solution

In most higher plants, the growing apical bud inhibits the growth of the lateral (axillary) buds, a phenomenon called apical dominance. Removal of shoot tips (decapitation) usually results in the growth of lateral buds. It is widely applied in tea plantations, hedge-making.

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