According to a study from Reggio Emilia, Italy, "Barley grain yield in rainfed Mediterranean regions can be largely influenced by terminal drought events. In this study the ecophysiological performance of the 'Nure' (winter) x 'Tremois' (spring) barley mapping population (118 Doubled Haploids, DHs) was evaluated in a multi-environment trial of eighteen site-year combinations across the Mediterranean Basin during two consecutive harvest years (2004 and 2005)."
"Mean grain yield of sites ranged from 0.07 to 5.43 t ha(-1), clearly dependent upon both the total water input (rainfall plus irrigation) and the water stress index (WSI) accumulated during the growing season. All DHs …
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