小麦及远缘杂交后代苗期耐盐性综合评价  

Comprehensive Evaluation of Salt-tolerance at the Seedling Stage in Progeny of Wheat and the Wild Relatives

作　　者：彭泽 杨春苗 耿广东[1] 杨锐 冯周 张军[1] 张庆勤[1] 张素勤[1,2] PENG Ze;YANG Chun-miao;GENG Guang-dong;YANG Rui;FENG Zhou;ZHANG Jun;ZHANG Qing-qin;ZHANG Su-qin(College of Agriculture,Guizhou University,Guiyang 550025;Guizhou Subcenter of National Wheat Improvement Center,Guiyang 550025)

机构地区：[1]贵州大学农学院,贵阳550025 [2]国家小麦改良中心贵州分中心,贵阳550025

出　　处：《植物遗传资源学报》2020年第3期597-604,共8页Journal of Plant Genetic Resources

基　　金：国家自然科学基金(31860380);贵州省科技计划项目(20185781);贵州省科学技术基金(20191110)。

摘　　要：对121份小麦等材料的耐盐性进行综合评价,以期为小麦耐盐生理、遗传育种等研究提供参考。结果表明,根据耐盐性将供试材料分为5类:高耐盐材料(P13、C1009、1710、1713和082-1,D值0.5877~0.6616);耐盐材料(1706、081、0819-1、PSR3628和TB1等9份种质,D值0.4222~0.5331);中耐盐材料(1707、1805、TPF8、1704和1712等41份种质,D值0.2684~0.3940);盐敏感材料(45份种质,D值0.1922~0.2640);高盐敏感材料(21份种质,D值0.0504~0.1848)。偏凸山羊草×硬粒小麦衍生系中P13、082-1、081、082-2材料的D值分布在0.4231~0.6616之间,表现为高耐或耐盐。一粒小麦×葡萄牙野燕麦衍生系,提莫菲维小麦×葡萄牙野燕麦衍生系的D值均值分别为0.4145和0.4106,显著大于普通小麦群体,它们总体上表现耐盐。8个小麦远缘杂交后代群体D值均值大于普通小麦群体,筛选出P13、1713、082-1、1706和081等耐盐新种质。One-hundred twenty-one wheat germplasm accessions derived from distant hybridization were tested for salt-tolerance,in order to provide insight for salt-tolerant physiology,genetics and breeding in wheat.Based on D value,these materials were classified into five categories:highly salt-tolerant(five genotypes including P13,C1009,1710,1713 and 082-1,D value from 0.5877 to 0.6616);salt-tolerant(nine genotypes such as 1706,081,0819-1,PSR3628,TB1,D value ranged from 0.4222 to 0.5331);moderate salt-tolerant(41 genotypes such as 1707,1805,TPF8,1704,1712,with a D value of 0.2684 to 0.3940);salt-sensitive(45 genotypes,with a D value of 0.1922 to 0.2640),highly salt-sensitive(21 genotypes,with a D value of 0.0504-0.1848).Especially,the D values of P13,082-1,081 and 082-2 lines derived from the cross Aegilops ventricosa Tausch×durum wheat ranged from 0.4231 to 0.6616,which showed high salt-tolerance or salt-tolerance.The average D values of the derivatives from einkorn wheat×Avena fatua L.var.Portugal,and T.timopheevii×Avena fatua L.var.Portugal were 0.4145 and 0.4106,which were significantly higher than that of common wheat accessions.The average D values of 8 progeny populations from wheat distant crosses were higher than that of common wheat.Finally,a few of new salt-tolerant germplasm accessions(i.e.P13,1713,082-1,1706,081)were identified.

关 键 词：小麦 远缘杂种 苗期 耐盐 综合评价 

分 类 号：S512.1[农业科学—作物学]