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

1. Cytokinins
2. Ethylene
3. Auxins
4. Gibberellins

Correct answer: Gibberellins

Solution

Gibberellins stimulate stem elongation and cell division, which helps sugarcane grow taller with longer internodes. This increases the usable cane yield, so they are sprayed to boost production.

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