Fig. 2. Red/far red light ratios (645/735 nm)received at the main stem for soybean planted at low, medium, and high plant populations and averaged across 1995 and 1996, Baton Rouge, LA. Low population = 80 000 plants ha^-1; medium population = 145 000 plants ha^-1; high population = 390 000 plants ha^-1. Population means within dates followed by different letters are significantly (P < 0.05) different according to LSD

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