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. 2023 Nov 5;19:121. doi: 10.1186/s13007-023-01098-8

Fig. 6.

Fig. 6

Plots of differences in shoot fresh weight at harvest and shoot fresh weight at seedling (A) and leaf area×SPAD at seedling (B). All three response values were normalized from 0 to 1, and their differences were fitted by response surface methodology. The scale of color represents red and blue for higher contrast and green for lower contrast. The purple and yellow dots on the plots indicate the optimal photon ratio from shoot fresh weight at harvest (Optimal_H) and leaf area×SPAD at seedling (Optimal_S), respectively