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Radiation Use Efficiency in Dual Winter Cereal–Forage Production Systems

^a USDA-ARS, National Soil Tilth Lab., 2150 Pammel Dr., Ames, IA 50011
^b Dep. of Agronomy, Iowa State Univ., Ames, IA 50011

View larger version (26K): [in this window] [in a new window]   Fig. 1. Cumulative intercepted photosynthetically active radiation (PAR) for wheat and triticale plant densities between GS 30 and GS 80 growth stages (Zadoks et al., 1974) during the 2004 and 2006 growing seasons near Ames, IA.