39份玉米自交系的芽苗期耐盐性评价  

Evaluation on Salt Tolerance of 39 Maize Inbred Lines at Bud⁃Seedling Stage

作　　者：陈祥静 朱庆琳 朱嘉 宋希云[1,2] 裴玉贺 Chen Xiangjing;Zhu Qinglin;Zhu Jia;Song Xiyun;Pei Yuhe(College of Agronomy,Qingdao Agricultural University,Qingdao 266109,China;Qingdao Key Laboratory of Germplasm Innovation and Application of Major Crops,Qingdao 266109,China)

机构地区：[1]青岛农业大学农学院,山东青岛266109 [2]青岛市主要农作物种质创新与应用重点实验室,山东青岛266109

出　　处：《山东农业科学》2023年第5期35-41,共7页Shandong Agricultural Sciences

基　　金：山东省农业良种工程项目(2019LZGC002-2);山东省技术创新引导计划项目(2018YFD0300604);山东省科技特派员行动计划项目(2020KJTPY073)。

摘　　要：芽苗期是研究玉米生长和耐盐性的关键时期。本研究以39份玉米自交系为试验材料,采用100 mmol/L NaCl溶液模拟盐胁迫,以相对发芽势、相对发芽率、胚芽长、胚根长、芽苗全长、芽鲜重、根鲜重、芽干重、根干重作为评价指标,利用灰色关联度法对各个玉米自交系芽苗期的耐盐能力进行综合评价。结果表明,盐胁迫下,玉米自交系种子萌发受到显著抑制;不同自交系的耐盐性存在较大差异,其中107-8、K_(12)HF76、早49、爆-1、昌7-2、LY002、KN-1m、黄478、糯-1、KN-1、奥甜8210、W305耐盐性较好,彭甜11-A、LY001、K12HF332、夏996、掖478耐盐性相对较差,其它自交系耐盐性中等。Bud⁃seedling stage is the key period to study maize growth and salt tolerance.In this study,thirty⁃nine maize inbred lines were used as materials and 100 mmol/L NaCl solution was used to stimulate salt stress.The relative germination potential,relative germination rate,plumule length,radicle length,seedling length,bud fresh weight,root fresh weight,bud dry weight and root dry weight were used as test indexes.The salt tolerance of the maize inbred lines at bud⁃seedling stage was evaluated by grey relational analysis.The re⁃sults showed that the seed germination of maize inbred lines was significantly inhibited under salt stress,and the salt tolerance of different inbred lines was obviously different.Among them,107⁃8,K_(12) HF76,Zao 49,Bao⁃1,Chang 7⁃2,LY002,KN⁃1m,Huang 478,Nuo⁃1,KN⁃1,Aotian 8210 and W305 had better salt re⁃sistance,while that of Pengtian 11⁃A,LY001,K12HF332,Xia 996 and Ye 478 was relatively poor.Other in⁃bred lines had medium salt tolerance.

关 键 词：玉米自交系 芽苗期 耐盐性 灰色关联度 

分 类 号：S513.01[农业科学—作物学]