摘要
以聚乙二醇 (PEG)作为渗透胁迫剂 ,对 5个苜蓿Medicagosativa品种愈伤组织进行干旱胁迫。用生理生化方法对各品种愈伤组织的过氧化物酶 (POD)活性、脯氨酸积累量、质膜相对透性 3项抗旱性鉴定指标进行测定 ,各项结果趋于一致 ,其抗旱性强弱的顺序为 :龙牧 80 3、草原 2号、中牧 1号、龙牧 80l、准格尔。同时 ,证明了POD活性。
Calluses of five alfalfa varieties were subjected to drought stress, using polyethylene glycol (PEG) as the stress reagent For the calluses, three indicators of drought resistance were assessed, including peroxidase (POD) activity, proline content and relative cell membrane permeability The indicators all showed the same result, and the varieties from greatest to least drought resistant indicated were Longmu 803, Caoyuan No 2, Zhongmu No 1, Longmu 801, and Zhunger At the same time, it was proven that POD activity, dissociated proline content and relative cell membrane permeability can all be used as physiological indices of alfalfa drought resistance
出处
《草业科学》
CAS
CSCD
2004年第4期28-30,共3页
Pratacultural Science
基金
黑龙江省教育委员会科研计划项目
