武字号玉米改良自交系产量性状配合力分析

Analysis on the G.C.A. of Improved Wuzi Maize Inbred Line Yield Character

根据中国玉米杂交优势利用模式,就国内种质系的选育对武109自交系用含唐四系、旅系种质的自交系进行了改良研究和自交选系。结果表明,选育的自交系8126一般配合力高,在5.77万株/hm2下测配新组合大穗大粒,抗病抗倒,结实性好,高产稳产,开发前景较好。

According to the model of China maize hybrids, the study of Wuzi maize inbred line improved by the inbred line which contained the germplasm of Tangsi line and lüline has been conducted in the aspect of the breeding of local germplasm line and new inbred line has been bred. The result indicated that the new inbred line 8126 possessed high G.C.A, the new hybrids from 8126 was big ear and big kernel, overall strong disease resistance and stiff straw, seed setting percentage was high, high grain yield and yield was stable under 5.77×104 plants/hm2. These hybrids display good development future.