杭嘉湖是我省的主要粮桑产区。三熟制一般于5月20日前接茬,蚕桑在5月15日后要加强管理,因而对夏收作物油菜的熟期要求非常严格。当地传统栽培的“长秆白”和“三月黄”等白菜型油菜,成熟期虽然较早,但毒素病严重,产量低而不稳;而现在推广的甘蓝型油菜品种的成熟又都偏迟。为此,我们经过几年的努力,选育出三个成熟较早的甘蓝型油菜新品系。 Hangjiahu is the main grain mulberry production area in our province. Mature system generally in the May 20 pick crop, sericulture in May 15 to strengthen management, so the summer harvest of rape maturity requirements are very strict. The local traditional cultivation of “long white” and “March yellow” and other cabbage rape, although the earlier maturity, but the toxin serious, low yield and instability; and now the promotion of the rape varieties of rape are both mature and partial late. For this reason, after years of hard work, we have bred three new mature lines of Brassica napus.