A) ABA -
B) cytokinin
C) ethephon
D) phenyl mercuric acetate
Correct Answer: B
Solution :
: Cytokinins are plant growth hormones Which are basic in nature, either amino purine or phenyl urea derivatives that promote cell division in plants. They also slow down the process of senescence (ageing and death) in plant parts (Richmond-Lang effect). Leaves treated with cytokinins contain more nutrients. They also prevent chlorophyll degradation. Hence, Perishable vegetables are sprayed with a solution of cytokinin to keep them fresh for longer time and increase their shelf life.
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