中国农业大学学报2017，Vol.22Issue(3)：12-22,11.DOI:10.11841/j.issn.1007-4333.2017.03.03
冬播春性小麦产量相关性状与抗旱性的关系研究
Study on the correlation between yield and drought resistance of winter sowing spring wheat (Triticum aestivum L.)
摘要
Abstract
To characterize the correlation between traits related to yield and drought resistance of spring wheat,spikelet per main spike,grain number per spike,sterile spikelet number,thousand grain weight,harvest index and grain yield per plot of 28 spring wheat from CIMMYT were investigated under rainfed and irrigated conditions.The heritability of major yield traits in spring wheat was analyzed,the drought resistance of spring wheat strains was evaluated,and the genetic correlation between the traits related to yield and drought resistance were analyzed by GGE biplot.The results showed that:The drought resistance of the spring wheat was related to many traits related to yield.Under irrigated and rainfed conditions,the heritability of spikelet per main spike,grain number per spike,thousand grain weight and grain yield per plot were higher(42.79％-78.87％).Under different water conditions,there were different degree of genetic correlation between main yield traits and drought resistance.Furthermore,based on the conjoint analysis of genetic correlation and heritability of trait,the selection efficiencies of the traits on the drought resistance,including under rainfed condition spikelet per main spike,grain number per spike,thousand grain weight and grain yield per plot were more higher than those of the rest.This result suggested that the selection of these traits should be emphasized in practice of drought resistant breeding in spring wheat.关键词
春小麦/产量性状/抗旱性/遗传相关/遗传力/GGE双标图Key words
spring wheat/yield trait/drought-resistance/genetic correlation/heritability/GGE biplot分类
农业科技引用本文复制引用
史华伟,孙黛珍,王曙光,史雨刚,杨进文,闫雪,王绘艳,景蕊莲,范华..冬播春性小麦产量相关性状与抗旱性的关系研究[J].中国农业大学学报,2017,22(3):12-22,11.基金项目
山西省自然科学基金项目(2013011034-2,2014011004-3) （2013011034-2,2014011004-3）
山西省科技攻关项目(20140311001-6) （20140311001-6）
