Harvest-aid defoliants in Cotton

Harvest-aid defoliants in Cotton

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Harvest-aid defoliants have been introduced to facilitate mechanical harvesting in cotton. Defoliants are chemicals that either impact plant hormonal activity related to leaf loss or cause direct injury to leaves, both at a level that promotes leaf drop and often represents the final step in the production of a cotton crop. Defoliants normally produce ethylene, which is a ripening hormone and causes leaf drop and bolls to crack open and fluff out. Secondly, it leads to clean and efficient picking as the pigments in the leaves can stain and reduce the quality of fibre. Therefore, in agronomic p...