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Q. One of the preventive methods of fruit drop is by spraying

Chhattisgarh PMTChhattisgarh PMT 2007

Solution:

One of the preventive methods of fruit drop is by spraying auxin. Auxin control the abscission layer. It inhibits abscission of leaves and fruits. Premature drop of fruits such as apple, pear and citrus can be prevented to a great extent by spraying the trees with a dilute solution of IAA, NAA or some other auxins.