A) 2, 4-D
B) ethylene
C) cytokinin
D) gibberellins
Correct Answer: B
Solution :
Ethylene is a simple gaseous hydrocarbons and is a naturally occurring plant hormone. Ethylene plays a major role in fruit development. At first auxin which is produced in significant amount in pollinated flowers and developing fruits stimulates ethylene production which in turn causes fruit ripening. The ethylene produced by one plant may influence the growth of other plants near to it.
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