Name the plant growth regulators which upon spraying on sugarcane crop, increases the length of stem, thus increasing the yield of sugarcane crop.

Abscisic acid

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Cytokinin

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Gibberellin

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Ethylene

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Solution

The correct option is C Gibberellin
Gibberellin hormone regulates the growth and elongation of the stem. It is able to promote the internode elongation because of which the size of sugarcane stem increases. The stem is the edible part of sugarcane. Thus, spraying of gibberellin increases the growth of the consumable part and hence, yield gets increased.

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Name the plant growth regulators which upon spraying on sugarcane crops increase the length of the stem, thus increasing the yield of sugarcane crops?

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