Question

Choose the option which is not an effect of ethylene from the choices given below.

• A. Senescence
• B. Bolting
• C. Abscission
• D. Thinning

Answer 1

The correct option is B Bolting

Bolting is the process of development of shoot/stem prior to the reproductive phase. Gibberellins induce bolting in rosette plants like lettuce.

The process of aging and decay in a plant is called senescence. It can happen to any part of a plant under the influence of ethylene. Just as ethylene causes the aging of leaves, it also causes parts of the plant like flowers and leaves to fall off. This phenomenon is called abscission. Thinning in agriculture means reducing the number of fruits or other plant parts like flowers so that the remaining ones can grow better. Ethylene also causes thinning.