PEG-6000模拟干旱胁迫对5个玉米品种种子萌发及活力的影响  

Effects of PEG-6000 Simulated Drought Stress on Seed Germination and Vigor of Five Maize Varieties

作　　者：江绪文[1] 李贺勤[1] 王晓琨[1] 张文健[1] 王建华[2] 

机构地区：[1]青岛农业大学农学与植物保护学院/山东省旱作农业技术重点实验室,山东青岛266109 [2]中国农业大学农学与植物保护学院/种子科学研究中心,北京100193

出　　处：《种子》2015年第5期5-8,共4页Seed

基　　金：公益性行业(农业)科研专项(编号:201303002);山东省优秀中青年科学家科研奖励基金(编号:BS2014NY007);山东省旱地作物水分高效利用创新团队(编号:62112N5);青岛农业大学高层次人才基金项目(编号:631219)

摘　　要：以郑单958、鲁单818、金海5号、农华101和蠡玉35共5个玉米品种种子为材料,采用PEG-6000模拟干旱胁迫处理,研究干旱胁迫对不同玉米品种种子萌发及活力的影响。结果表明,干旱胁迫下,各玉米品种种子萌发均受到不同程度抑制,且随PEG质量分数的增加抑制作用越明显。综合各项活力指标,5个玉米品种抗旱性强弱顺序为郑单958>鲁单818>金海5号>农华101>蠡玉35。The seeds of five maize varieties such as Zhengdan 958, Ludan 818,Jinhai No. 5, Nonghua 101 and Liyu 35 were used as materials, the seed germination and vigor were studied under PEG-6000 simulated drought stress. Results showed that the seed germination of five maize varieties were inhibited under drought stress, and the inhibitory effect increased significantly with the increase of PEG concentrations. Considering the various indexs, the order of drought resistance of five maize varieties： Zhengdan 958 〉 Ludan 818 〉 Jinhai No. 5 〉 Nonghua 101 〉 Liyu 35.

关 键 词：干旱胁迫 玉米 种子 萌发 

分 类 号：S513[农业科学—作物学]