优质大白菜杂交种──夏白５９夏白５９系四川省农科院作物所育成的优质大白菜杂交种，１９９１年通过省级鉴定，１９９３年获省科技进步三等奖。该品种早熟、耐热、抗病、丰产，反季节种植效益显著．主要特点；一是商品性好，结球紧实，叶多帮少，组织细嫩、脆，纤维少，... High-quality Chinese cabbage hybrid ─ ─ summer white 59 Xiabai 59 Department of Sichuan Academy of Agricultural Sciences bred high quality Chinese cabbage hybrids, passed the provincial-level identification in 1991, the provincial science and technology in 1993 by the third prize. The variety of precocious, heat-resistant, disease-resistant, high yield, anti-season planting significant benefits. Main features; First, good merchandise, knot tight, leaves more to help less, the organization delicate, crisp, less fiber, ...