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Dry mass Carbon isotope composition (δ13C) is a representative parameter of water use efficiency (WUE) in plants, as previously demonstrated by different authors for different species under different environmental conditions. Nevertheless, the relationship between δ13C and WUE in grapevines shows important variations among different experiments thus limiting its interest as indicator of water status...
Plant water use efficiency (WUE) is becoming a key issue in semiarid areas, where crop production relies on the use of large volumes of water. Improving WUE is necessary for securing environmental sustainability of food production in these areas. Given that climate change predictions include increases in temperature and drought in semiarid regions, improving crop WUE is mandatory for global food production...
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