旱盐双胁迫对小麦芽期的影响研究  

Study on Effects of Drought and Salt Stress on Wheat Germination Stage

作　　者：朱永兴[1] 郭生虎[1] 董建力[1] 关雅静[1] 

机构地区：[1]宁夏农林科学院农业生物技术研究中心,宁夏银川750002

出　　处：《安徽农业科学》2016年第26期23-24,33,共3页Journal of Anhui Agricultural Sciences

基　　金：宁夏农林科学院先导基金项目(NKYJ-15-14);国家自然科学基金(31460345)

摘　　要：[目的]研究春小麦芽期的抗旱、耐盐性。[方法]以2个小麦品种宁春27号、宁春4号以及2个亲本后代中13个小麦品系为研究对象,将不同小麦材料用0(CK)、1%Na Cl+10%PEG、1%NaCl+15%PEG旱盐复合处理后,测定并分析小麦芽期的发芽率、芽长、根长,计算发芽抑制率、芽长抑制率、根长抑制率。[结果]在旱盐双胁迫下,芽期抗旱耐盐性最强的是S129、宁春27号(S127)、S9,芽期抗旱耐盐性最差的是S105、宁春4号(S126)、S75、S103。[结论]该研究筛选出3个耐盐性较强的小麦品种,为培育抗旱耐盐品种提供材料基础。[Objective] To study the drought resistance and salt tolerance of spring wheat at the germination stage.[Method] After two varieties of wheat （Ningchun No.27 and Ningchun No.4） and 13 wheat lines in progenies of the two patents were treated with 0 （CK）, 1%NaCl＋10%PEG, and 1%NaCl＋15%PEG, the bud germination rate, shoot length, and root length of wheat at the germination stage were measured and an-alyzed, and the inhibition rates of germination, shoot length, and root length were calculated.[Result] Under the double stress of drought and salt, the drought resistance and salt tolerance of S129, Ningchun No.27 （S127）, and S9 were the strongest, while S105 and Ningchun No.4 （S126）, S75, and S103 had the worst drought resistance and salt tolerance at the germination stage.[Conclusion] The research has sifted three varieties of wheat with strong drought resistance and salt tolerance , which can provide materials for the breeding of varieties with strong drought resistance and salt tolerance.

关 键 词：小麦 抗旱 芽期 耐盐性 

分 类 号：S512.1[农业科学—作物学] Q786[生物学—分子生物学]