Question
Which increase shoot growth in callus culture?
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| Column - $I$ | Column - $II$ |
|
$(i)$ Chrysophyta |
$(a)$ Fungi |
|
$(ii)$ Gonyaulax |
$(b)$ Diatom |
| $(iii)$ Penicillium | $(c)$ Plasmodium |
|
$(iv)$ Slime mould |
$(d)$ Dinoflagellate |

$I.$ Cytokinins especially help in delaying senescence.
$II.$ Auxins are involved in regulating apical dominance.
$III.$ Ethylene is especially useful in enhancing seed germination.
Gibberellins are responsible for immature falling of leaves
