FORESTRY
PLANT AND WOOD ANATOMY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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too little water
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plenty of water
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cold temperature
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hot temperature
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Detailed explanation-1: -First, stomatal conductance decreases during drought as a result of negative feedbacks that are the focus of this review. Second, stomatal closure reduces evaporative cooling, which can warm the leaf, increasing humidity in the leaf intercellular airspaces and thereby enhancing evaporative demand.
Detailed explanation-2: -Water loss through transpiration can be reduced by closing the stomata in the leaves using a substance called ABA. When the stomata is closed photosynthesis will decrease because no CO2 can enter through the closed stomata. Less photosynthesis means less energy is produced by the plant and the plant stops growing.
Detailed explanation-3: -Stomata open and close as a result of diffusion. Under hot and dry conditions, when water loss due to evaporation is high, stomata must close to prevent dehydration.