Question

Fruit drop occurs when fruit has

• A. No auxin as in the stem
• B. Less auxin as compared to stem
• C. More auxin than the one present in the stem
• D. Auxin concentration equal to that of stem

Answer 1

The correct option is B Less auxin as compared to stem

Auxin is a plant hormone which prevents the abscission of leaves and fruits. Young leaves and fruits produce auxin and thus remain attached to the stem. When the level of auxin declines in fruits as comparted to stem, fruit drop occurs. Hence, auxin is sprayed externally to prevent loss of fruit from premature dropping.

Thus, the correct answer is option B.