Figure 4

Effects of interaction between seeding rate and nitrogen rate on rbcL and rca gene expressions at different leaf positions of the rice population 10 days after flowering under dry cultivation. (a) The expression level of the rbcL gene in the flag leaf, the top two leaves, and the top three leaves. (b) The expression level of the rca gene in the flag leaf, the top two leaves, and the top three leaves. Different letters with the same sowing amount indicate a significant difference at P < 0.05. The figures were prepared and combined using Origin 2018 (www.originlab.com).