A) blockage of phloem
B) blockage of xylem
C) when some roots and phloem are removed
D) tracheid is blocked
Correct Answer: B
Solution :
Wilting is the loss of turgidity of leaves and other soft aeriarparts of a plant causing their drooping, folding and rolling. It occurs when the soil is unable to meet the requirement of plant for transpiration or by blockage of xylem. It is of three types: (i) incipient wilting (ii) temporary wilting (iii) permanent wilting.
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