Explain the factors that affect the ascent of sap.
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Factors affecting ascent of sap
- Water movement is regulated by root pressure and transpiration. All those factors which affect the rate of water absorption and transpiration also influence the ascent of sap.
- High temperature, atmospheric pressure, wind velocity and low atmospheric humidity influence the ascent of sap as that of transpiration.
- Soil water deficit also decrease the ascent of sap indirectly by influencing the absorption of water.
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