高温对匍匐翦股颖果岭草坪草生理特性及再生性的影响  

Effects of high Temperature Stress on some Physiological Characteristics and Regeneration Ability of Agrostis stolonifera green turfgrass

作　　者：姬承东[1,2] 张德罡[1] 朱钧[3,4] 张泽铭[3] 陈平[3] 

机构地区：[1]甘肃农业大学草业学院 [2]仲恺农业技术学院,广东广州510225 [3]仲恺农业技术学院 [4]西南大学园艺园林学院,重庆400716

出　　处：《中国农学通报》2007年第1期221-224,共4页Chinese Agricultural Science Bulletin

基　　金：广东省科技攻关(2005B20901018);广州市科技攻关(2006C13G0161);珠海市科技攻关(PC20061051);深圳市深绿园林技术实业有限公司项目(D1063008)资助。

摘　　要：测定粤选1号匍匐翦股颖(AgrostisstoloniferaL.cv.YuexuanNo.1)和匍匐翦股颖品种Pen-ncross2年生果岭草坪草在38℃高温胁迫下叶片的一些生理指标和匍匐茎再生性。结果表明,高温胁迫下叶绿素和抗坏血酸含量下降,粤选1号叶绿素含量降幅低,抗坏血酸含量明显高于Penncross;丙二醛和脯氨酸含量增加,粤选1号丙二醛含量明显低于Penncross,而脯氨酸含量显著高于Pen-ncross。高温胁迫下粤选1号匍匐翦股颖保护酶(POD、SOD和CAT)活性明显高于Penncross。高温胁迫1-6d粤选1号匍匐翦股颖匍匐茎再生能力明显高于Penncross。Some physiological characteristics and regeneration ability of high temperature （38℃） stress on the Agrostis stolonifera Penncross and Yuexuan No.1 were studied. The content of chlorophyll and ascorbic acid dropped under the high temperature stress, and the chlorophyll content in leaves of Yuexuan No.1 dropped slower than Penncross, but the content of ascorbic acid in leaves of Yuexuan No.1 was significantly higher than Penncross; The content of MDA and proline increased, and the leaf MDA of Yuexuan No.1 was significantly lower than Penncross, but the proline content in leaves of Yuexuan No.1 was significantly higher than Penncross. The activity of antioxidant enzymes （POD, SOD ＆ CAT） in leaves of Yuexuan No.1 was significantly higher than Penncross under the high temperature stress. The creeping stem regeneration ability of Yuexuan No.1 was significantly higher than Penncross on the first six days of high temperature stress.

关 键 词：高温胁迫 匍匐翦股颖 生理特性 再生性 

分 类 号：S688.405[农业科学—观赏园艺]