Which of the following is used to artificially induce fruit ripening and enhance juiciness?

$A$ 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?

Most widely used compound as a source of ethylene is

When an unripe banana is sealed in a polythene bag,it remains green for many days. But if an apple is also sealed in the same bag,the banana ripens and turns yellow within a few days. The reason is that apple

Pineapple can be made to flower in off-season by:

Which hormone exhibits the triple response?