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. 2016 Aug 30;7:1304. doi: 10.3389/fpls.2016.01304

FIGURE 1.

FIGURE 1

Effect of different concentrations of 24-epibrassinolide (EBR) on net photosynthetic rate (Pn) in tea plants. Tea bushes were sprayed with graded levels of EBR (0.01, 0.05, 0.1, 0.5, and 1.0 ppm) solution. Control (CK) tea bushes were simultaneously sprayed with MilliQ water containing same ratio of ethanol used to dissolve EBR. Twenty-four hours after EBR application, Pn was measured on third fully expanded leaves using an open-flow infrared gas analyzer adapted with light and temperature control systems (Li-COR 6400, Lincoln, NE, USA). The results are expressed as the mean values ± SD. Mean denoted by different letters indicate significant differences between the treatments (P < 0.05).