Importance of the Evaporation/transpiration in agriculture

• Excess water getting into plant might decay the cells. Transpiration prevents it by removing the extra water.
• Extra quantity of water if retained would disturb the osmotic relationship between cells. This is prevented by transpiration.
• Transpiration stream helps in distribution of nutrients to all the parts of the plant body
• Fresh and cool water reaches all parts of the plant body and this reduces the metabolic heat acting as a coolant
• It indirectly helps in the uptake of salts as the latter get into the plant together with water.
• Upward movement of water (Ascent of sap) is due to the suction force created by transpiration.
• It indirectly affects the process of respiration and photosynthesis.