Fig. 4 | Scientific Reports

Fig. 4

From: Effects of continuous cropping and application of bio-organic fertilizer on photosynthetic performance, dry matter accumulation and distribution of sugar beet

Fig. 4

Changes of gas exchange parameters of sugar beet leaves under different treatments. RS: Rapid growth stage of foliage, RSS: Root and sugar growth stage, and SAS: Sugar accumulation stage. The different letters on bars show significant differences at 0.05 level of probability. The statistical significance is denoted by *P ≤ 0.05; **P ≤ 0.01; ***P ≤ 0.001, and NS, not significant. Numbers followed by different letters in each column of the same growth stage indicate significantly differences at α = 0.05 based on ANOVA.

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