Question

Which of the following is not a function of auxin?

• A. It promotes apical dominance
• B. It helps in the initiation of flowering
• C. It helps in seed germination
• D. It can be used as weedicides

Answer 1

The correct option is C It helps in seed germination

Auxin does not help in seed germination. Gibberellins help in seed germination. It helps in the hydrolysis of starch to glucose. This glucose is utilized in cellular respiration and provides energy to the embryo.
Auxin is a plant growth promoter that helps to promote apical dominance ( a phenomenon in which the growth of the main central stem of the plant is more as compared to the other stems), helps in initiation of flowering(e.g in pineapple), and can also be used as a weedicide(e.g 2,4-D).