图2. 低温胁迫下不同品种甘薯薯苗的生理变化
A：电导率;B：丙二醛;C：超氧化物歧化酶;D：过氧化物酶;E：过氧化氢酶;F抗坏血酸过氧化酶;G：脯氨酸。不同小写字母表示P<0.05时差异显著。1—30分别为苏薯8号、浙薯13、渝薯17、普薯32、烟薯25、徐薯22、遗字138、商薯19、龙薯9号、苏薯16、宁紫薯2号、商徐紫1号、甘薯166-7、商薯8号、广薯87、红香蕉、台湾英沟、苏渝303、龙薯14、红东、辽薯19、赣10-20、南薯010、紫罗兰、龙紫薯6号、徐薯55-2、秦紫薯2号、徐紫薯8号、辽薯15、龙薯515

Fig. 2. Physiological changes of different sweet potato seedlings under low temperature stress
A: Conductivity; B: Malondialdehyde; C: Superoxide dismutase; D: Peroxidase; E: Catalase; F: Aseorbate peroxidase; G: Pro. Different lower-case letters indicated significant difference at P<0.05. 1-30: Sushu 8, Zheshu 13, Yushu 17, Pushu 32, Yanshu 25, Xushu 22, Yizi 138, Shangshu 19, Longshu 9, Sushu 16, Ningzishu 2, Shangxuzi 1, Sweetpotato166-7, Shangshu 8, Guangshu 87, Hongxiangjiao, Taiwanyinggou, Suyu 303, Longshu 14, Hongdong, Liaoshu 19, Gan10-20,Nanshu010, Ziluolan, Longzishu 6, Xushu55-2, Qingzishu 2, Xuzishu 8, Liaoshu 15, Longshu 515