Shiyuqiubao' is a new Chinese cabbage F1 hybrid, developed by crossing 2 self-incompatible lines 88-11-1 and 87-10-1. It takes 88 days from sowing to harvesting. Its leaf head is straight and unfolding ( a few has pointed top). Its plant height is 59-61 cm, expansion is 63 cm, longitudinal dia is 52-54 cm, transverse dia is 12-14 cm. The yield is 90-105 t · hm-2 . It is of high quality. It has firm leaf head and little fiber. It does not easily bolting. It tastes good and is tolerant to storage and transportation. It is highly resistant to virus disease and black rot, and resistant to downy mildew. It is suitable for cultivation in Beijing, Tianjin, Hebei, Liaoning, Heilongjiang, Shandong, etc. Regions in autumn as Chinese cabbage of middle and late maturity.%石育秋宝是由两个自交不亲和系88-11-1和87-10-1配制而成的大白菜一代杂种.生长期88 d(天)左右,叶球直筒束心型(个别顶部尖),株高59～61 cm,开展度63 cm,叶球纵径52～54 cm,横径12～14 cm.丰产性好,每667 m2净菜产量6 000～7 000 kg.品质优,结球紧实,纤维少,口感好,耐贮藏,不易抽薹；高抗病毒病和黑腐病,抗霜霉病.适宜在北京、天津、河北、辽宁、黑龙江、山东等地作秋季中晚熟大白菜种植.
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