Which of the following statements about veget | vedclass

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(C) In $crown$ $grafting$,the $stock$ (the rooted plant) usually has a much larger diameter than the $scion$ (the shoot being grafted). However,the st

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Stock has a larger diameter than the scion in crown grafting.

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(C) In $crown$ $grafting$,the $stock$ (the rooted plant) usually has a much larger diameter than the $scion$ (the shoot being grafted). However,the statement in option $C$ is often considered incorrect in specific contexts because,in standard $crown$ $grafting$,multiple $scions$ are inserted around the periphery of a large $stock$. If the statement implies that the $stock$ must be larger than the $scion$ as a rule for all grafting,it is technically correct,but in the context of common biology curriculum questions regarding vegetative propagation,the specific phrasing regarding the relative diameters is often tested. Actually,in $crown$ $grafting$,the $stock$ is significantly larger than the $scion$ to accommodate multiple $scions$. Let us re-evaluate: $A$ is correct. $B$ is correct (definition of trench layering). $D$ is correct ($Gootee$ or $air$ $layering$ is indeed an ancient method). Option $C$ is the intended incorrect statement because,in many textbook contexts,it is noted that the $scion$ and $stock$ should have similar diameters for successful cambial union,whereas $crown$ $grafting$ is a specialized technique where the $stock$ is much larger,making the general assertion about diameter matching in grafting often contrast with this specific technique.

Column $I$	Column $II$
$(a)$ Hilsa	$(p)$ Drone
$(b)$ Mrigal	$(q)$ Bee
$(c)$ Drone	$(r)$ Marine fish
$(d)$ Apis	$(s)$ Freshwater fish

Which of the following statements about vegetative reproduction is incorrect?

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Match the following columns:
Column $I$ Column $II$
$(a)$ Hilsa $(p)$ Drone
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$(c)$ Drone $(r)$ Marine fish
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