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The Control of evaporative demand on transpiring plants was performed in natural light growth chambers, and transpiration, stomatal conductance and dry matter production of cucumber seedling (Cucumis ...sativus L.) were analyzed under different conditions of the controlled evaporative demand. Under the lower evaporative demand, transpiration was extremely depressed, and stomatal conductance and turgor-driven leaf expansion were enhanced. These effects of the lower evaporative demand brought the higher photosynthetic dry matter production with the higher water use efficiency. From the results, it is suggested that the control of evaporative demand can be a reliable measure to manipulate water use and dry matter production of plants.show more
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Export Mendeley
KJ00004506834