Write the importance of Ethephon.

(N/A) Ethephon is an aqueous solution used as a source of ethylene. Its importance includes:
$1$. It is widely used to hasten fruit ripening in tomatoes and apples.
$2$. It accelerates the abscission in flowers and fruits (thinning of cotton,cherry,and walnut).
$3$. It promotes female flowers in cucumbers,thereby increasing the yield.
$4$. It is used to induce flowering in mangoes and pineapples.