Spraying of phenylmercuric acetate

Increases transpiration

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Reduces transpiration

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Increases photosynthesis

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Causes guttation

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Solution

The correct option is B Reduces transpiration
Antitranspirants are substances that are employed for reducing the rate of transpiration. The important antitranspirants are
(i) Chemicals, which reduce the degree of stomatal opening e.g., phenyl mercuric acetate, salicylic acid, and abscisic acid.
(ii) Formation of ultra thin surface films of silicon emulsion over the leaf surface.
So, the correct answer is option B.

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