Measuring water stress in cotton plants

Measuring water stress in cotton plants

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Caption: Measuring water stress in cotton plants. Technician using a pressure chamber (bottom left) to measure leaf water potential in cotton (Gossypium sp.) plants. This makes it possible to determine the water stress status of the plants. The measurements are used to verify water stress at different crop canopy temperatures. Water stress occurs when the plant's demand for water is in excess of the amount of water available to it. Too high a water stress level can cause the plant to wilt and cotton yield to decrease. The pressure chamber technique is an industry standard procedure used to determine water potential.

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