不同浓度PEG对玉米杂交种发芽特性的影响  

Effect of PEG Concentration on Germination Characteristics of Maize Hybrid

作　　者：康志钰[1] 李芬[1] 邝玲[1] 邢吉敏 孔繁军 吴鹏 

机构地区：[1]云南农业大学农学与生物技术学院,云南昆明650201 [2]中国种子集团有限公司,北京100045

出　　处：《西南农业学报》2013年第5期1764-1768,共5页Southwest China Journal of Agricultural Sciences

基　　金：国家科技支撑计划(2011BAD35B08)子项目

摘　　要：为了解玉米萌发期的抗旱性,选取7个玉米杂交种,待种子吸胀后,用浓度分别为0(CK)、10%、15%和20%的PEG进行处理,模拟干旱,测定苗长、发芽势、发芽率、发芽指数、活力指数、发芽速率、峰值、平均发芽率、发芽值等发芽特性,研究PEG对玉米杂交种发芽特性的影响。结果表明,会单4号、长城706、长城799和农单5号表现出较强的抗旱性。而北玉16号、海禾1号和路单8号的苗期抗旱性相对较差。In order to study the drought resistance of the maize seed during germination period,seven maize hybrids after seeds sucking were treated by different PEG concentrations which were 0（CK）,10 ％,15 ％ and 20 ％ for simulating drought,then those germination characters were selected to test such as seedling length,germination potential,germination percentage,germination index,vigor index,germination rate,peak value,average germination percentage and germination value.The result indicated that Huidan No.4,Changcheng 706,Changcheng 799 and Nongdan No.5 showed strong drought resistance,but Beiyu No.16,Haihe No.1 and Ludan No.8 had poor resistance to drought at seedling stage,relatively.

关 键 词：玉米 杂交种 发芽特性 PEG 抗旱性 

分 类 号：S513[农业科学—作物学]