TREE PHYSIOLOGY
TRANSPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The water loss from plants in liquid form through stoma on the surface of the leaves.
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The water loss from plants in liquid form through hydathodes(opening) at the edge of the leaves.
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The water loss from plants in the form of water vapour through hydathodes(opening) at the edge of the leaves.
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None of the above
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Detailed explanation-1: -Final answer: Loss of water as droplets from hydathodes is called guttation.
Detailed explanation-2: -Guttation is the process in which water is lost in the form of water droplets from the tips or margin of the leaves. Guttation has occurred through the specialized minute pores which are known as hydathodes. It is the most common phenomenon in vascular plants like grasses.
Detailed explanation-3: -Guttation is the loss of water in solution form through hydathodes. It occurs under the influence of root pressure. When transpiration is low and plant absorbs water from well-watered soil under the influence of root pressure.
Detailed explanation-4: -This root pressure forces the water to exude through the leaf tip, hydathodes or water glands, forming droplets. The guttation process is observed the most when transpiration is suppressed and relative humidity is maximum, as seen during the night.