A) Cobalt chloride paper is used to compare rate of transpiration on two surface of leaf
B) Poro meter is used for measuring the size of stomata
C) Meaningful girdling experiments cannot be done on sugarcane because vascular bundles are scattered
D) Sunken stomata and hairy surface increase transpiration
Correct Answer: D
Solution :
Woxy coating, thick cuticle, sunken stomata, hairy surface reduce transpiration and are character xerophytes, which grow in places where water is not available in much quantity.
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