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Fig. 2. Crude protein as influenced by species (A) and by dryland and irrigation levels of low, medium, and high averaged across Bothriochloa caucasica, B. ischaemum, and B. bladhii (B). Data were also averaged across years 2002 and 2003. Above-ground biomass was removed during the last week of July at an 8-cm cutting height. (A) Means with the same letter (a, b, c) among species and within a month are not different (P > 0.05). (B) x, y, and z indicate linear, quadratic, and cubic effects of water treatments within a month, respectively (P < 0.05).
