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. 2021 Jul 12;12:709313. doi: 10.3389/fpls.2021.709313

FIGURE 8.

FIGURE 8

Effects of supplemental LED light duration on the contents of photosynthetic products: fructose (A), glucose (B), sucrose (C), and starch (D) in cucumber leaves. After LED light supplement treatment for 30 days, 10 pieces of the third leaf from the top of cucumber were selected from each treatment, washed and dried immediately, and then put into liquid nitrogen for the determination of photosynthate contents. Values are expressed as mean ± SE (n = 3). Bars that are significantly different based on the Duncan’s multiple range test (p < 0.05) are indicated with different lowercase letters.