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一、选育经过及产量表现 7909—2—4油菜是我所从甘南的芥菜型地方品种阿木去乎为母本,以新城油菜做父本杂交选育而成的芥菜型春油菜新品系。 1.杂交材料的选育及鉴定:1978年在州农科所选配组合,进行杂交。1979年种植F_1代组合,1980年选留4个株系观察鉴定,以7909—2—4株系表现优良,1981年进入鉴定圃,是年在其顺序排列种植的3.3平方米小区中产籽量0.48公斤,居各参试材料之首位。1982年继续鉴定,在参试的27个品系材料中小区产量0.94公斤,仍居首位,比对照合作牛尾梢0.64公斤增产46.9％;比母本小区产量0.45公斤,增产108.9％;比父本小区产量0.63公斤,增产50.4％,
First, after breeding and yield performance 7909-2-4 rapeseed is my from Brassica juncea local varieties Amu to as the female parent to Metro male rape parental selection Breeding of mustard spring rapeseed new lines. 1. Breeding and identification of hybrid materials: In 1978 the state agricultural science and technology selection of combinations, hybridization. 1979 F_1 generation combinations were selected in 1980, leaving 4 lines selected to observe the performance of 7909-2-4 lines performed well in 1981 to identify nursery garden, which is planted in the order of 3.3 square meters of middle-yielding seed 0.48 kg, ranking first in all the test materials. Continue to identify in 1982, in the trial of 27 lines of material yield 0.94 kg in the community, still tops the first place, compared with the control of cattle tail 0.64 kg 46.9% yield; 0.45 kg more than the mother of the plot, an increase of 108.9% Community output 0.63 kg, an increase of 50.4%