Question

Name the plant growth regulator which upon
spraying on sugarcane crop, increases the length
of stem, thus increasing the yield of sugarcane
crop.
Cytokinin
(2) Gibberellin
(3) Ethylene
(4) Abscisic acid​

Answer 1

Answer:

b is correct answer of your question

Answer 2

Answer:

The answer is that Ethylene is used as a plant growth regulator which  is sprayed on the sugarcane crop which increases  its yield and viscera.