Factors Affecting Transpiration

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The rate of transpiration in plants is affected by several factors, including temperature, , wind and light intensity.
At higher temperatures, and thus transpiration increases.
When the air is , diffusion of water vapour out of the leaf slows down and transpiration decreases.
When speed increases, faster moving air removes water vapour, increasing the rate of diffusion of water vapour from the leaf. Transpiration .
When intensity increases, the open wider to allow more carbon dioxide into the leaf for photosynthesis, leading to increased transpiration.