Question
Root development is promoted by
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| Column $-I$ (Classes) |
Column $-II$ (Examples) |
||
| $A$ | Psilotopsida | $I$ | Dryopteris, Pteris, Adiantum |
| $B$ | Lycopsida | $II$ | Equisetum |
| $C$ | Sphenopsida | $III$ | Selaginella |
| $D$ | Pteropsida | $IV$ | Lycopodium |
| $V$ | Psilotum |