两份鸭茅材料耐高温性能评价  

Assessment on High Temperature Tolerances of Two Dactylis glomerata Materials

作　　者：蔡化[1] 张鹤山[1] 田宏[1] 熊军波[1] 陈明新[1] 刘洋[1] 

机构地区：[1]湖北省农业科学院畜牧兽医研究所/湖北省动物胚胎工程及分子育种重点实验室,武汉430064

出　　处：《湖北农业科学》2011年第23期4890-4892,共3页Hubei Agricultural Sciences

基　　金：农业部"草种质资源保护"项目(2130135);国家科技支撑计划项目(2011BAD17B02);湖北省动物胚胎工程及分子育种重点实验室开放课题(2010ZD200~299)

摘　　要：人工控制条件下对宝兴鸭茅(Dactylis glomerata cv.Baoxing)和金丝岭鸭茅(D.glomerata cv.Jin-siling)的耐高温性能进行评价。结果表明,随着胁迫温度的升高,鸭茅幼苗叶片的相对电导率和游离脯氨酸含量均呈上升趋势,超氧化物歧化酶(SOD)活性先上升后下降。对3项生理指标的分析表明两份鸭茅材料均具有一定的耐高温性能,在试验条件下宝兴鸭茅的耐高温性能略强于金丝岭鸭茅。The high temperature tolerance of two Dactylis glomerata materials,D.glomerata cv.Baoxing and Jinsiling was evaluated under artificial conditions.The relative conductance rate,contents of dissociated proline and SOD activity in seedling leaves were detected.Results showed that as the heat temperature strengthened,the relative conductance rate and dissociated proline content increased in both materials;While the activity of SOD increased first,then decreased,indicating that the two materials had heat resistant mechanism.D.glomerata cv.Baoxing represented slightly higher resistance against high temperature than D.glomerata cv.Jinsiling under experimental conditions.

关 键 词：鸭茅(Dactylis glomerata) 苗期叶片 高温胁迫 

分 类 号：S543.3[农业科学—作物学]