Match the following columns:Column-IColumn-II | vedclass

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(D) Plant growth regulators (PGRs) are classified based on their physiological effects on plant growth.$1$. Plant growth promoters: These substances p

Vedclass · Accepted Answer

$A-1, 2, 4; B-3$

Vedclass · Answer

(D) Plant growth regulators (PGRs) are classified based on their physiological effects on plant growth.$1$. Plant growth promoters: These substances promote growth activities such as cell division,cell enlargement,pattern formation,tropic growth,flowering,fruiting,and seed formation. Examples include Auxins $(1)$,Gibberellins $(2)$,and Cytokinins $(4)$.$2$. Plant growth inhibitors: These substances play a role in plant responses to wounds and stresses of biotic and abiotic origin. They are also involved in various growth-inhibiting activities such as dormancy and abscission. Abscisic acid $(3)$ is the primary plant growth inhibitor.Therefore,$A$ (promoters) matches with $1, 2, 4$ and $B$ (inhibitor) matches with $3$.

Column-$I$	Column-$II$
$A$. Plant growth promoters	$1$. Auxin
$B$. Plant growth inhibitor	$2$. Gibberellin
	$3$. Abscisic acid
	$4$. Cytokinin

Column-$I$	Column-$II$
$P$. Indole compounds	$I$. $IAA$
$Q$. Adenine derivatives	$II$. $ABA$
$R$. Carotenoid derivatives	$III$. $GA_3$
$S$. Terpenes	$IV$. Kinetin
$T$. $C_2H_4$	$V$. Ethylene

Match the following columns:
Column-$I$ Column-$II$
$A$. Plant growth promoters $1$. Auxin
$B$. Plant growth inhibitor $2$. Gibberellin
$3$. Abscisic acid
$4$. Cytokinin

Select the correct matching for $A$ and $B$.

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Match the following columns:
Column-$I$ Column-$II$
$P$. Indole compounds $I$. $IAA$
$Q$. Adenine derivatives $II$. $ABA$
$R$. Carotenoid derivatives $III$. $GA_3$
$S$. Terpenes $IV$. Kinetin
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Match the following columns:Column-$I$Column-$II$$A$. Plant growth promoters$1$. Auxin$B$. Plant growth inhibitor$2$. Gibberellin$3$. Abscisic acid$4$. CytokininSelect the correct matching for $A$ and $B$.