Improving intrinsic water-use efficiency and crop yield
Greater yield per unit rainfall is one of the most important challenges in dryland agriculture. Improving intrinsic water-use efficiency (WT), the ratio of CO2 assimilation rate to transpiration rate at the stomata, may be one means of achieving this goal. Carbon isotope discrimination (Δ13C) is recognized as a reliable surrogate for WT and there have now been numerous studies which have examined the relationship between crop yield and WT (measured as Δ13C). These studies have shown the...[Show more]
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