一、大白菜新品种 1.石青 ‘青石’大白菜是江苏省农科院蔬菜研究所用‘小青口’两用系和‘石特’自交系配制的一代杂交种,1979年育成;1982—1984年连续三年在我省南、中、北部九个点进行区域试验,试验结果平均亩产3800—6000公斤,比‘青杂中丰’增产2.42—46. 44%,丰产性能较 First, the new varieties of Chinese cabbage 1. Azurite ’bluestone’ Chinese cabbage is the Institute of Vegetables, Jiangsu Academy of Agricultural Sciences ’Xiaoqingkou’ dual-use and ’Shitai’ inbred lines prepared from the hybrid generation in 1979 bred; 1982-1984 for three consecutive years in our province at the southern, central and northern parts of the nine regional tests, the test results average 3800-6000 kilograms per mu, compared with ’Green Zhaofu’ yield 2.42-46. 44%, high yield performance than