MCQ
Expanded green stem of Opuntia is called
- ✓Phylloclade
- BTendril
- CBulbs
- DCladode
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| Column $I$ | Column $II$ |
| $(a)$ Potato spindle | $(i)$ Virus |
| $(b)$ Cr-Jacob disease $(CJD)$ | $(ii)$ Viroid |
| $(c)$ Cholera | $(iii)$ Prion |
| $(d)$ Leaf rolling and curling | $(iv)$ Bacteria |
$(a)$ It help overcome the apical dominance
$(b)$ Delay senescence, Thus the fruits can be left on the tree longer so as
$(c)$ Increase in length of axis
$(d)$ It is used to speed up the maltingprocess in brewing industries
$(e)$ It induces parthenocarpy
$(f)$ Promotes female flowers in cucumbers