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油菜品系“481”是由1975年选自甘兰型品种间回交二代的高油分单株,经过四年的油分正向选择,至1978年其高油分特性已基本稳定。 “481”的群体性状为:含油量高,植株和分枝位较矮、分枝数较多、结角密度大,千粒重较高,花序中长、角果数和产量中等、角粒数偏少,成熟期早。 1978年对“481”以单株为对象进行了系统的物候期观察和经济性状考察,最后分
The rapeseed line “481” is a high-oil single plant that was backcrossed for two generations from the genus Brandulaceae in 1975. After four years of positive oil selection, its high oil content has basically stabilized in 1978. The population traits of “481” were as follows: high oil content, shorter plants and branches, more branches, higher knot densities, higher thousand-kernel weight, medium-long inflorescences, Less, early maturity. In 1978, we conducted a systematic phenological observation and economic traits study on “481” single plants. The last minute