SATHEE: Plant Growth And Development Ques 85

Plant Growth And Development Ques 85

85. Leaf fall can be prevented with the help of

(a) abscisic acid

(b) auxins

(c) florigen

(d) cytokinins

Show Answer

Answer : d

Hints & Solutions

(d) It is due to Richmond-Lang effect. Cytokinins prevent degeneration of chlorophyll, proteins and nucleic acids. They increase of inflow of auxin and amino acids. It reactivates leaf metabolism.

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Plant Growth And Development

Plant Growth And Development Ques 85

85. Leaf fall can be prevented with the help of

Answer : d

Hints & Solutions

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