The ripening of fruits can be hastened by treatment with

Which one of the following responses of plants to growth hormones is true for ethylene?

The over-ripening of bananas can be delayed by:

Which one is not an ethylene effect?

$A$ farmer grows cucumber plants in his field. He wants to increase the number of female flowers in them. Which plant growth regulator can be applied to achieve this?

The Plant Growth Regulator $(PGR)$,ethylene,comes under the category of: