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近年来反季节种植春、夏季大白菜新品种相继问市，这些品种主要来自韩国及国内津外省市，经在天津市种植均表现不抗干烧心病，造成绝收，因而在我市不能种植。为此天津市蔬菜研究所于１９９２年研制出春夏秋均可种植的大白菜新品种“津白５６”，并于１９９６年通过天津农作物?
In recent years, the counter-season planting spring and summer cabbage new varieties have asked the city, these varieties are mainly from South Korea and the domestic provinces and cities outside the province, the performance of the city of Tianjin are not resistant to dry heart disease, resulting in absolute failure, which can not be planted in the city . To this end Tianjin Vegetable Research Institute in 1992 developed a new spring and summer can be planted cabbage new variety “Jinbai 56”, and in 1996 through the Tianjin crop?