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Cut or excised leaves remain green for l...

Cut or excised leaves remain green for long if induced to root of dipped in

A

gibberellins

B

cytokinins

C

auxins

D

ethylene

Text Solution

Verified by Experts

The correct Answer is:
B
In Richmond-Lang effect, cytokinin delays senescence of leaves. As cytokinin treated detached leaves rnmain green after a period of twenty days where as controlled leaves were completely yellow and drying at tips and margins
It was concluded that cytokinin was able to postpone for a number of days the disappearance of chlorophyll and degradation of proteins that normally occur with the ageing process of leaves
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