马铃薯东农303、大西洋在低温胁迫下生理生化及光合特性的比较  

Comparison of Physiological-biochemical Indexes and Photosynthetic Characteristics between Potato Varieties Dongnong 303 and Daxiyang under Low Temperature Stress

作　　者：周真珍[1] 史端甫[2] 李力[1] 徐明[1] 贺利雄[1] 

机构地区：[1]湖南农业大学生物科学技术学院,湖南长沙410128 [2]湖南农业大学资源环境学院,湖南长沙410128

出　　处：《江西农业学报》2016年第5期24-27,共4页Acta Agriculturae Jiangxi

基　　金：国家自然科学基金新疆联合基金项目(U1203184);湖南省长沙市科技局项目(k1403164-21)

摘　　要：以马铃薯品种大西洋、东农303幼苗为试验材料,综合分析了低温胁迫下马铃薯幼苗的丙二醛、叶绿素、脯氨酸和SOD等生理生化指标,以及光合速率、气孔导度、胞间CO2浓度等光合特性,结果表明,马铃薯大西洋品种表现出的抗寒性优于东农303。Taking Dongnong 303 potato and Daxiyang potato as experimental materials,analyzed comprehensively the physiological- biochemical indexes such as malondialdehyde（ MDA）, chlorophyll, proline and SOD and the photosynthetic characteristics such as photosynthetic rate,stomatal conductance and intercellular CO2 concentration of potato seedlings under low temperature stress. The results showed that the cold resistance of Daxiyang potato was better than that of Dongnong 303 potato.

关 键 词：马铃薯 幼苗 低温胁迫 生理生化 光合特性 

分 类 号：S532[农业科学—作物学]