Fruit and leaf drop at early stages can be prevented by the application of:
1)cytokinin
2)ethylene
3) auxin
4) gibberellic acid

Dear Student

The correct answer is 3) auxins.

Auxins prevent premature fall of leaves and fruit.
For example:
NAA prevent fruit drop in tomato.
2,4-D prevents fruit drop in citrus.

​​​​​​

Regards 

  • 1
What are you looking for?