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Question

In order to increase the yield of sugarcane crop, which of the following plant growth regulators should be sprayed?

A
Ethylene
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B
Auxins
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C
Gibberellins
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D
Cytokinins
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Solution

The correct option is C Gibberellins
Gibberellins are a type of plant growth regulators. They help in internode elongation (e.g. in grapes), breaking seed dormancy (condition of seeds that are incapable of germinating even when the conditions suitable for seedling growth are supplied), seed germination, improving the shapes of fruits (e.g. apple) and promote bolting (internode elongation before flowering). They can increase the length of stem and yield of sugarcane to as much as 26 tonnes/acre.

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