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. 2020 Aug 18;11:1214. doi: 10.3389/fpls.2020.01214

Figure 2.

Figure 2

Average annual temperature, precipitation and global radiation from 15th April to 15th October measured at the DWD-Station Kiel-Holtenau. S = slope of the regression. All slopes were tested to be significantly different from zero. Significance level are: ***p < 0.001.