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A comparison of photosynthetic CO2 assimilation rates in the leaves of glyphosate-sensitive (PAN) and glyphosate-resistant (RRS) genotypes, 5 d after glyphosate spraying (A), and biomass accumulation (shoot dry weight) in the glyphosate-resistant soybean line in the days following treatment with glyphosate (B). Letters above the bars indicate statistical significance (P < 0.05).
