Fig. 7. Leaf blade:stem-plus-sheath (A) and live:dead (B) ratios as influenced by dryland and irrigation levels of low, medium, and high averaged across Bothriochloa caucasica, B. ischaemum, and B. bladhii. Data were averaged across years 2001, 2002, and 2003. Above-ground biomass was removed during the last week of July at an 8-cm cutting height. x, y, and z indicate linear, quadratic, and cubic effects of water treatments within a month, respectively (P < 0.05).