The habit of a cabbage or acaulescent (stemle | vedclass

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Question

(B) The correct answer is $B$. $GA_3$ (Gibberellic acid) is a plant hormone that promotes stem elongation. In plants like cabbage,which are acaulescen

Vedclass · Accepted Answer

$GA_3$

Vedclass · Answer

(B) The correct answer is $B$. $GA_3$ (Gibberellic acid) is a plant hormone that promotes stem elongation. In plants like cabbage,which are acaulescent (stemless) or have a rosette habit,the application of $GA_3$ induces 'bolting',which is the rapid elongation of the internodes just before flowering. This drastically changes the plant's growth habit from a compact rosette to an elongated stem.

The habit of a cabbage or acaulescent (stemless) plant can be changed drastically by the application of:

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$A$ : Gibberellic acid increases the yield of malt from barley grain.
$R$ : Gibberellins stimulate the synthesis of amylase,protease and other hydrolytic enzymes for mobilisation of reserve food.

Bolting may be induced by

Dormancy of seed is broken by

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