$A$ higher proportion of ethylene is found in

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

What is ethylene gas used for?

Ethylene gas is used for

$A$ hormone that initiates flowering and synchronising fruit set in pineapples is . . . . . . .

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 $I, II, III$.