Fig. 2From: The cold responsive mechanism of the paper mulberry: decreased photosynthesis capacity and increased starch accumulationChanges of four physiological traits in leaves of paper mulberry under cold stress. a REL. b Maximum photochemical efficiency Fv/Fm. c Soluble sugar content. d SOD activity. Values are presented as mean ± SD of three biological replicates. Duncan’s test (p < 0.05) was used for data statistics at different time points and letters a, b, c, d, and e indicated statistical significanceBack to article page