Which hormone induces fruit ripening?

$PGR$ which was discovered by Cousins .........

Identify the plant hormone to which the given functions belong:
$I.$ Initiates flowering in pineapples
$II.$ Induces flowering in mango
$III.$ Root growth and root hair promotion
Select the correct sequence for $I, II, III$.

The ripening of fruits can be accelerated by

Which of the following can be used to artificially ripen banana fruits?

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