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water-use-efficiency

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Water-use efficiency (WUE) is a measure of how effectively a plant converts water lost through transpiration into biomass or fixed carbon, quantified at scales ranging from individual leaves to entire field stands. It is a critical trait in plant science because it reflects the fundamental trade-off between carbon gain through photosynthesis and water loss through stomata. Understanding and improving WUE is central to breeding crops that maintain productivity under drought conditions and to understanding how plants adapt to water-limited environments.

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