Optimizing wheat productivity and water productivity through deficit irrigation strategies in semi-arid environments.

Influence of irrigation levels on above-ground biomass and grain yield of wheat at harvest The irrigation treatments had a highly significant effect ( p < 0.005 ) on both the aboveground biomass (BY; t ha −1 ) and grain yield (GY; t ha −1 ) of wheat across all three study years (Fig. 3 , Table S1 ), as well as on the average over the three years (Table S1 ).

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