DIFFERENCE BETWEEN TRANSPIRATION AND GUTTATION
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Transpiration
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Guttation
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1.
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In transpiration, water is lost in the form of water vapour.
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In guttation, water is lost in the form of liquid droplets.
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2.
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Water lost is pure water.
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Water lost contains salts, sugars and amino acids.
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3.
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Water is transpired through stomata, cuticle and lenticels.
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Water is lost through hydathodes (chalk glands.)
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4.
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It takes place in present of light when the temperature is higher.
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It occurs during the cold hours of early morning and night.
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5.
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It takes place in dry conditions which favour loss of water through diffusion.
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It takes place in humid conditions which do not favour loss of water through diffusion.
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6.
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It is controlled by a number of factors, the opening and closing of stomata being the main one.
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It continues as long as adequate water supply in maintained and the conditions are cold and humid.
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7.
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Excessive transportation under deficit water supply leads to wilting.
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It never results in wilting as it does not take place under deficit water supply.
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Also read: http://www.biology.lifeeasy.org/569
