大豆种质资源芽期耐盐性鉴定及耐盐品种筛选  

Identification of Salt Tolerance and Screening of Salt Tolerant Varieties of Soybean Germplasm at Germination Stage

作　　者：郭秀秀 李照君 樊守金[1] 李娜娜 蒲艳艳 宫永超 丁汉凤 GUO Xiu-xiu;LI Zhao-jun;FAN Shou-jin(Shandong Normal University,Jinan,Shandong 250014;Shandong Center of Crop Germplasm Resources,Jinan,Shandong 250100)

机构地区：[1]山东师范大学,山东济南250014 [2]山东省农作物种质资源中心,山东济南250100

出　　处：《安徽农业科学》2019年第6期47-51,共5页Journal of Anhui Agricultural Sciences

基　　金：山东省农业科学院农业科技创新工程(CXGC2016A02;CXGC2018E15);山东省现代农业产业技术体系杂粮产业创新团队建设(SDARS-16-01)

摘　　要：盐胁迫严重抑制大豆的生长发育进程,筛选耐盐种质资源对选育大豆耐盐品种具有重要意义。对9份大豆品种进行不同浓度的NaCl处理,测定了大豆的发芽率、胚根长、株高、须根数等指标,分析了各处理下的相对盐害指数,评价了各品种的耐盐性。试验表明,在0.5%的盐溶液处理下,9个品种都是高耐盐品种;在1.0%的盐溶液处理下,有3个品种是高耐盐品种;在1.5%的盐溶液处理下,临豆10号的耐盐性最强,属于较耐盐品种。相关性分析表明,不同盐浓度处理的相对盐害指数与发芽率均呈极显著负相关关系,能够准确地反映大豆的耐盐性。Salt stress seriously inhibits the growth and development of soybean, and it is of great significance to select salt tolerant germplasm resources for the selection of salt tolerant varieties. In this research, nine soybean varieties were treated with NaCl at different concentrations. The germination rate, radicle length, plant height, number of fibrous roots and other indexes of soybean were determined. The relative salt damage index of each treatment was analyzed, salt tolerance of each soybean variety was evaluated. The experiment showed that under the 0.5% salt solution, 9 varieties were all highly salt tolerant varieties. Under 1.0% salt solution, 3 varieties were highly salt tolerant varieties. When 1.5% salt solution was applied, the salt tolerance of Lindou 10 was the strongest and belonged to more salt tolerant varieties. Correlation analysis showed that the relative salt damage index under different salt concentrations showed a significant negative correlation with germination rate, which could accurately reflect the salt tolerance of soybean.

关 键 词：大豆 种质资源 耐盐鉴定 

分 类 号：S326[农业科学—作物遗传育种]