冬小麦不同品种倒春寒抗性差异鉴定分析  

The Appraisal Analysis of Differences between Varieties Resistant to Frozen Injury of Coldness in Later Spring on Winter Wheat

作　　者：安晓东[1] 靖金莲[1] 阎翠萍[1] 刘玲玲[1] 李世平[1] 黄丽波 王全亮 单杰 

机构地区：[1]山西省农业科学院小麦研究所,山西临汾041000 [2]襄汾县农业局,山西襄汾041500

出　　处：《山西农业科学》2017年第2期156-159,171,共5页Journal of Shanxi Agricultural Sciences

基　　金：山西省科技攻关项目(20130311001-2);山西省农业科学院攻关项目(YGG1421)

摘　　要：在晋南冬麦区,以冀麦325、良星99等小麦品种为试验材料,采用同一基因型不同播期和不同基因型同一播期就倒春寒对小麦品种的冻害影响进行了研究。结果表明,在同一播期情况下,倒春寒对不同基因型品种造成的影响差别很大,鉴定出一些极端耐和不耐倒春寒的基因型材料,以供育种及相关研究利用;在同一基因型不同播期情况下,随着播期的推迟,单株鲜质量越来越低,麦苗对倒春寒的抗性也越来越差,培育冬前壮苗是提高小麦抗御倒春寒的有效方法;冬小麦不同基因型间的耐倒春寒性与其抽穗期的迟早不存在明显的相关性。试验还对倒春寒造成的冻害程度的记载方法进行了分析评价,并提出了小麦抗倒春寒性的记载方法。In the winter wheat district of southern Shanxi,wheat varieties Jimai 325,Liangxing 99,etc.were used as experimental material,the influence on the freezing injury of wheat varieties were studied by using the same genotype but different sowing date and the same sowing date but different genotypes.The results showed that the difference of the frozen injury of coldness in later spring on different genotypes were obvious under the condition of the same sowing date,and identified some genotype material with extreme resistance or extreme un-resistance.The plant fresh quality was becoming more and more low and the resistance to the frozen injury of coldness in later spring was becoming more and more bad with delayed sowing date.So timely planting and cultivating strong seedling before the winter was one of the effective methods to improve the resistance for frozen injury of coldness in later spring.The difference of the resistance for frozen injury of coldness in later spring between different genotypes had no obvious correlation with the sooner or later of its heading stage.

关 键 词：小麦 倒春寒 播种期 冻害 

分 类 号：S512.1[农业科学—作物学]