应用灰色关联度分析法对远缘杂交选育的小麦新品系评价  

Multi-factorial Evaluation of New Wheat Lines from Distant Hybridization by Grey Relational Analysis Method

作　　者：丁明亮[1] 赵红[1] 浦秋红 崔永祯[1] 李宏生[1] 顾坚[1] 田玉仙[1] 杨木军[1] 李绍祥[1] 

机构地区：[1]云南省农业科学院粮食作物研究所,云南昆明650205

出　　处：《西南农业学报》2018年第2期217-222,共6页Southwest China Journal of Agricultural Sciences

基　　金：云南省应用基础研究青年基金(2017FD015);云南省联合支持国家计划项目(2014GA016);云南省科技惠民专项(2014RA056)

摘　　要：【目的】给硬粒小麦资源引入普通小麦,进而为选育小麦新品种提供参考依据。【方法】应用灰色关联度分析法对12个利用玉米×小麦远缘杂交诱导小麦双单倍体技术选育的硬粒小麦和普通小麦远缘杂交获得的小麦新品系的13个农艺性状进行综合描述和量化评估。【结果】12个远缘杂交选育的小麦新品系的综合评价位次由高到低依次为14Y_2-919、14Y_2-873、14Y_2-939、14Y_2-838、14Y_2-931、14Y_2-1052、14Y_2-874、14Y_2-918、14Y_2-988、14Y_2-987、14Y_2-834和14Y_2-973;运用灰色关联度分析法获得的加权关联度更能反映品种的真实表现,是综合评价小麦新品系的有效方法。【结论】经综合评价,小麦新品系14Y_2-919在12个新品系中综合表现最为优异,其次为14Y_2-873、14Y_2-939和14Y_2-838,可进一步用于培育适合云贵高原麦区的小麦新品种。【Objective】The objective of the present paper is to provide reference for introducing resources of durum wheat into common wheat to breed new wheat varieties. 【Method】13 agronomic traits of 12 new wheat lines,which were from distant hybridization between durum wheat and common wheat by the technique of producing doubled haploid of wheat by wide hybridization between wheat and maize,were generally described and quantitatively evaluated by the grey relational analysis method. 【Result】The order of comprehensive evaluation score of12 new wheat lines from high to low was 14 Y_2-919,14 Y_2-873,14 Y_2-939,14 Y_2-838,14 Y_2-931,14 Y_2-1052,14 Y_2-874,14 Y_2-918,14 Y_2-988,14 Y_2-987,14 Y_2-834 and 14 Y_2-973. Weighted correlation degree of the grey relational analysis method could reflect the actual performance of wheat cultivars more accurately,thus it was an effective method for comprehensive evaluation of new wheat lines. 【Conclusion】Based on comprehensive evaluation,it was found that 14 Y_2-919 was the best,followed by 14 Y_2-873,14 Y_2-939 and 14 Y_2-838. These new lines can be used for further breeding new wheat varieties for the Yunnan-Guizhou plateau wheat region.

关 键 词：普通小麦 硬粒小麦 远缘杂交 灰色关联度分析 

分 类 号：S512.1[农业科学—作物学]