One hormone hastens the maturity period in juvenile conifers,a second hormone controls xylem differentiation,while the third increases the tolerance of plants to various stresses. They are respectively:
- AGibberellin,Auxin,Cytokinin
- BAuxin,Gibberellin,Cytokinin
- CGibberellin,Auxin,$ABA$
- DAuxin,Gibberellin,$ABA$
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$(1)$ Maximum growth is observed in ........ phase.
$(2)$ Apical dominance is due to .......
$(1)$ Maximum growth is observed in ........ phase.
$(2)$ Apical dominance is due to .......
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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
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| $A$. Cytokinin | $i$. Stimulates closure of stomata |
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| $C$. Gibberellin | $iii$. Promotes lateral shoot growth |
| $D$. Abscisic acid | $iv$. Found in large amounts in tissues undergoing senescence |
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