不同基因型春青稞品种抗旱性分析  

Analysis of drought resistance of different genotypes of Tibetan Hulless Barley

作　　者：高利云[1] Gao Li-yun(Agricultural Research Institute,TAAAS,Lhasa,China 850032)

机构地区：[1]西藏自治区农牧科学院农业研究所,西藏拉萨850032

出　　处：《西藏农业科技》2017年第4期17-21,共5页Tibet Journal of Agricultural Sciences

摘　　要：在青稞拔节期进行干旱处理,在所试3个品种中喜拉19号抗旱能力最强,藏青320次之,藏青2000最弱;MDA(丙二醛)含量有所增加,增幅藏青2000>藏青320>喜拉19号;脯氨酸含量均大幅度增加,在172.1μg/g～187.2μg/g之间,增幅藏青320>喜拉19号>藏青2000;叶绿素含量均显著降低(3.87mg/g～3.90mg/g),叶绿素含量喜拉19号>藏青320>藏青2000;SOD(超氧化物歧化酶)含量为785.0 U/mgprot～810.5 U/mgprot,SOD活性大小藏青320>喜拉19号>藏青2000;POD(过氧化物化酶)含量为94.3U/mgprot～105.5U/mgprot,藏青320 POD活性最高,喜拉19号与藏青2000差异不明显;CAT(过氧化氢酶)含量为64.0U/mgprot～70.5U/mgprot,CAT活性大小藏青320品>喜拉19号>藏青2000。Anti-drought treatment at jointing stage of Tibetan Hulless Barley,Xi La No.19 has the strongest drought resistance ability,Zang Qing 320 is sencond to it and Zang Qing 2000 is the last in all 3;the content of MDA increases a little,Zang Qing 2000﹥Zang Qing 320﹥Xi La No.19;the content of proline increases a lot,during 172.1-187.2μg#g,Zang Qing 320﹥Xi La No.19﹥Zang Qing 2000;the content of Chlorophyll apparently decreases(3.87-3.90mg#g),Xi La No.19﹥Zang Qing 320﹥Zang Qing 2000;the content of SOD is 785.0U/mgprot-810.5 U/mgprot,the activity of SOD:Zang Qing 320﹥Xi La No.19﹥Zang Qing 2000;the content of POD is 94.3U/mgprot-105.5 U/mgprot,Zang Qing 2000 has the highest activity of POD,there is almost no difference between Xi La No.19 and Zang Qing 2000 in activity of POD;the content of CAT is 64.0U/mgprot-70.5U/mgprot,the activity of CAT:Zang Qing 320﹥Xi La No.19﹥Zang Qing 2000.

关 键 词：青稞 抗旱性 分析 

分 类 号：S531[农业科学—作物学]