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2个紫薯品种秧苗耐寒性初步研究 被引量:1

Preliminary Studies on Cold Resistance of Two Purple Sweet Potato Cultivars Seedlings
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摘要 以2个紫薯品种(紫罗兰、紫薯王)为研究材料,利用人工气候室,设定室温(20℃)处理为对照,0、5、10、15℃不同相对低温处理,分析了2种紫薯品种叶片中脯氨酸含量、细胞膜透性、丙二醛含量的变化。结果表明:当温度低于10℃后,随着低温胁迫程度的加深,紫薯叶片的游离脯氨酸含量有明显增加,质膜透性上升,丙二醛含量呈逐渐上升趋势;在温度低于5℃时,紫薯植株生长明显受阻,各项指标与对照相比都达到极显著水平,紫薯王比紫罗兰的耐寒性稍差。
作者 贾志国 张丽
出处 《种子》 CSCD 北大核心 2013年第6期88-89,共2页 Seed
基金 北方学院自然科学研究计划项目
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