A) Cytokinin
B) Ethylene
C) ABA
D) \[G{{A}_{3}}\]
Correct Answer: B
Solution :
Ethylene is used to induce artificial ripening in climacteric fruits e.g., apple, mango, banana etc. Climacteric fruits are fleshy fruits, which show a sudden sharp rise of respiration rate at the time of ripening. Abscisic acid induce parthenocarpic development in rose. Application of cytokinin to marketed vegetables can keep them fresh for several days. Application of gibberellins increases the number and size of several fruits e.g., grape, tomato. They can induce parthenocarpy.
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