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Q.

The hormone that promotes rapid internode/petiole elongation in deep water rice plants is also 

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a

efficacious in hastening the maturity period in juvenile conifers

b

effective in overcoming the apical dominance

c

highly effective in fruit ripening

d

called as stress hormone

answer is B.

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Detailed Solution

Ethylene promotes rapid internode/petiole elongation in deep water rice plants. Ethylene is highly effective in fruit ripening. It enhances the respiration rate during ripening of the fruits. This rise in rate of respiration is called respiratory climactic.

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