Read the following statements on plant growth | vedclass

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Question

(A) Statement $A$ is correct: Auxins are known to induce parthenocarpy in many plants.Statement $B$ is correct: Plant growth regulators (PGRs) can act

Vedclass · Accepted Answer

$A, B, C$ only

Vedclass · Answer

(A) Statement $A$ is correct: Auxins are known to induce parthenocarpy in many plants.Statement $B$ is correct: Plant growth regulators (PGRs) can act as promoters (e.g.,auxins,gibberellins,cytokinins) or inhibitors (e.g.,abscisic acid) of growth.Statement $C$ is correct: Dedifferentiation (the process where mature cells regain the capacity to divide) is a necessary step before redifferentiation (where cells mature into specific tissues) can occur.Statement $D$ is incorrect: Abscisic acid $(ABA)$ is a plant growth inhibitor,not a promoter.Statement $E$ is incorrect: Apical dominance refers to the phenomenon where the apical bud inhibits the growth of lateral buds,not promotes it.Therefore,statements $A, B,$ and $C$ are correct.

Column-$I$	Column-$II$
$A$. Cytokinin	$i$. Stimulates closure of stomata
$B$. Ethylene	$ii$. Increases stem length
$C$. Gibberellin	$iii$. Promotes lateral shoot growth
$D$. Abscisic acid	$iv$. Found in large amounts in tissues undergoing senescence

Column $I$ (Hormone)	Column $II$ (Effect/Function)
$(a)$ Auxins	$(i)$ Produces male flowers on female plant
$(b)$ Gibberellins	$(ii)$ Parthenocarpy in orange,lemon and grapes
$(c)$ Cytokinin	$(iii)$ Antitranspirant and stress tolerance in plants
$(d)$ Abscisic acid	$(iv)$ Reverses apical dominance in plants

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