提高冬培马铃薯苗抗逆适应的隔地苗床模式研究  

Membrane Cushion Seedbed to Improve Potato Seedlings Disaster Resilience for Winter Training

作　　者：柳永强 李掌 马廷蕊[2,3] 高彦萍 胡霞 

机构地区：[1]甘肃农业科学院马铃薯研究所,兰州730070 [2]甘肃农业大学农学院,兰州730070 [3]甘肃作物遗传与种质改良重点实验室,兰州730070

出　　处：《灌溉排水学报》2012年第2期82-84,共3页Journal of Irrigation and Drainage

基　　金：甘肃农业科技创新专项

摘　　要：以无膜垫层隔地苗床为对照,研究了全膜垫层苗床和孔膜垫层苗床对冬培马铃薯苗生物量构成、光合效率、渗透调节性能和膜脂过氧化伤害的影响。结果表明,①膜垫层隔离苗床使不同生育期马铃薯株高、茎粗、叶面积、根、匍匐茎和块茎生长加快,总生物量增加;②膜垫层隔地苗床使马铃薯净光合速率、蒸腾效率和脯氨酸增加;③不同模式隔地苗床中,马铃薯叶片丙二醛表现为:无膜>全膜>孔膜;根部丙二醛表现为:全膜>无膜>孔膜。在马铃薯隔地冬培中,孔膜垫层苗床和全膜垫层苗床使马铃薯生长加快,光和效率和渗透调节功能加强,而且,孔膜垫层能有效减少冬培中亚低温、弱光和高湿所诱发的膜脂过氧化伤害。With no membrane cushion seedbed for the contrast,the effect of entire membrane cushion seedbed and holes membrane cushion seedbed＇s on biomass composition,photosynthetic efficiency,osmotic adjustment performance and lipid per-oxidation damage of winter Potato seedling were researched.The results showed that： ①membrane cushion seedbed accelerated potato plant height,leaf area,root,stolon and tuber growth at different growth stages;②membrane cushion seedbed caused the potato net photosynthetic rate,transpiration efficiency and Pro content increased;③in different modes of seedbed,the potato leaf MDA content was： no membrane cushion,entire membrane cushion,holes membrane cushion,root MDA content was： entire membrane cushion,no membrane cushion,holes membrane cushion.It concluded that membrane cushion seedbed could accelerate potato growth,enhance osmotic adjustment and photosynthetic efficiency,moreover,holes membrane cushion seedbed could induced lipid per-oxidation damage of winter training in circumstance of lower temperature,weak light and high humidity.

关 键 词：马铃薯 隔地苗床 冬培 抗逆 

分 类 号：S532[农业科学—作物学]