What are the uses of Ethylene and Abscisic acid?

1.	What are the uses of Ethylene and Abscisic acid?
Answer» Uses of Ethylene: (i) Ethylene is used for colour development and ripening of certain fleshy fruits. (ii) Application of ethephon in cucumber increases the number of female flowers and hen fruits (iii) The sprouting of storage organs such as rhizomes, corms, tubers can be enhanced by exposing them to ethylene. Uses of Abscissic acid: (i) ABA can be used as anti-transpirant. Application of minute quantity of ABA to leaves reduces transpiration to a great extent through partial closure of stomata. (ii) Abscisic acid can be used to promote rooting in many stem cuttings. (iii) The dormancy of buds, seeds and storage organs can be prolonged by the application of ABA.

Answer»

Uses of Ethylene:

(i) Ethylene is used for colour development and ripening of certain fleshy fruits.

(ii) Application of ethephon in cucumber increases the number of female flowers and hen fruits

(iii) The sprouting of storage organs such as rhizomes, corms, tubers can be enhanced by exposing them to ethylene.

Uses of Abscissic acid:

(i) ABA can be used as anti-transpirant. Application of minute quantity of ABA to leaves reduces transpiration to a great extent through partial closure of stomata.

(ii) Abscisic acid can be used to promote rooting in many stem cuttings.

(iii) The dormancy of buds, seeds and storage organs can be prolonged by the application of ABA.

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