Figure 6.

UV-B tolerance analyses of the six mulberry cultivars. Analysis of DNA damage, superoxide accumulation, lipid peroxidation, membrane injury, and chlorophyll content in leaves of mulberry cultivars BJ7, G14, PS2, HLS, JQ82, and LSDHP after the UV-B treatment. (A) CPDs levels. (B) O₂⁻ content. (C) MDA content. (D) Electrolyte leakage. (E,F) chlorophyll content (Chl a and Chl b). Data are means ± SE of three biological replicates from three different experiments. Different lowercase letters indicate significant differences among treatments (One-way ANOVA test, p < 0.05).