Question

The pineapple which under natural conditions is difficult blossom has been made to produce fruits throughout the year by application of

Answer 1

Answer:

Plants such as pineapple which under natural conditions is difficult to blossom(flower)can be made to do so by spraying them with synthetic auxins such as 2,4-D(2,4-dichloro phenoxy acetic acid) and NAA (Naphtehle acetic acid). So, the correct answer is 'NAA, 2, 4-D