Fig. 2From: Physiological effects of different stubble height and freeze-thaw stress on Secale cereale L. seedlingsThe effect of stubble height and FT stress on the content of soluble sugar (a) and soluble protein (b) in seedlings. Rye was cut to 2 cm, 6 cm, 10 cm and no cutting (CK group), and FT stress management after 6d regrowth. The sample was taken once every 2 h, and the corresponding temperature gradient was at 10, 5, 0, − 5, 0, 5 and 10 °C. No freeze-thaw (NFT) samples taken at the same time. The error bars indicate SE [t1 ~ t7 (n = 3); NFT (n = 21)]. Bars not sharing the same letter are significantly different. (P < 0.05)Back to article page