外省冬小麦亲本产量性状遗传力和配合力分析

几个外省冬小麦亲本产量性状遗传力和配合力分析摘要：小麦在我国有着重要的地位，小麦是我国主要的粮食作物之一，为了选育出优良的小麦品种，进一步研究其遗传力与配合力，选用 LB-3、JX-11、LXH-1、汝麦 076、洛旱 7 号、济麦 22、青麦 6 号、泰农 18、青丰 1 号为研究亲本，采用不完全双列杂交法，一共选配出了 20 个杂交组合，并对杂交后代的的农艺性状株高，穗长、结实小穗等进行观测。以大田平均数进行相应的分析，并在其基因型等生物水平上对其弄一行配合力进行分析，测量其配合立方差其相对应的效应值。本次试验显示，泰农 18 是所有性状都比较优异的亲本，它的一般配合力都挺高。再者汝麦 076 和 LXH-1 千粒重是提高千粒重的优异亲本。结合特殊配合力效应值分析，组合 JX-11×泰农 18、汝麦 076×青丰 1 号、洛旱 7 号×泰农 18 也可以作为高产量育种的亲本材料。关键词：小麦；农艺性状；配合力；方差；遗传力Analysis of heritability and combining ability of yield characters in wheat parentsAbstracts:Wheat plays an important role in our country. Wheat is one of the main food crops in our country. In order to select excellent wheat varieties and further study their heritability and combining ability, lb-3, jx-11, lxh-1, Rumai 076, Luohan 7, Jimai 22, Qingmai 6, Tainong 18 and Qingfeng 1 were selected as the parents. 20 hybrid groups were selected by incomplete diallel hybridization The plant height, ear length and spikelet bearing of the hybrid progeny were observed. According to the average number of the field, the combining ability of a row was analyzed at the level of genotype and other biological level, and the corresponding effect value of the matching cube difference was measured. This experiment shows that Tainong 18 is a parent with excellent characters, and its general combining ability is very high. Moreover, Rumei 076 and lxh-1 were excellent parents to increase 1000 grain weight. Combined with the effect value analysis of...