Question

Parthenocarpy can artificially be induced by spraying hormones auxins and gibberellins. The proper time for applying auxin and gibberellins, respectively are

(a) before anthesis, after anthesis

(b) at anthesis, after anthesis

(c) after anthesis, at anthesis

(d) at anthesis for both

Answer 1

Answer is : (c) after anthesis, at anthesis

For parthenocarpy induction by auxins, these should be applied after anthesis (first opening of flower) and by gibberellins, these should be applied earlier, i.e. at anthesis.