Fig. 5.

Growth and N accumulation of cvs Nanguang and Elio in response to partial nitrate nutrition (PNN) and SNP. Dry weight (A), total N concentration (B), and total N content (C) in the shoots and roots of cvs Nanguang and Elio. Rice seedlings were grown under NH₄ ⁺ or PNN for 14 d in hydroponic media with or without SNP (2.5 μM, cv. Nanguang; 5 μM, cv. Eilo). Data are means ± standard error (SE), and bars with different letters indicate significant differences at P<0.05, as determined by ANOVA.