Question

Choose the correct answer from the alternatives given.
Which of the following is true regarding gibberellins?

• A. There are about 70 chemically different gibberellins
• B. They are growth promoters causing cell elongation
• C. These hormones can break seed and bud dormancy
• D. All of the above.

Answer 1

The correct option is D All of the above.

Gibberellins also delay senescence. Thus, the fruits can be left on the tree longer so as to extend the market period. GA3 is used to speed up the malting process in the brewing industry. Sugarcane stores carbohydrate as sugar in their stems. Spraying sugarcane crop with gibberellins increases the length of the stem, thus increasing the yield by as much as 20 tonnes per acre.

So, the correct option is 'All of the above'.