guttation is common in tropical rainforest due to which reason ?
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The exudation of xylem sap at the edges or tips of the leaves of some vascular plants, like grasses is called guttation. Unlike transpiration, it takes place only in certain conditions like cool and highly humid atmosphere. It is because plants can absorb up a limited amount of water.
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Explanation:
Guttation is observed when the transpiration is low or stopped, and the humidity is high. Thus the correct option is (A) Root pressure. Additional Information: As the guttation occurs due to root pressure, it cannot be seen in large trees because the force that will be required to secrete the water out is too large.
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