【摘要】 从北京地方品种与台湾材料杂交后代中选出自交不亲和系８５４０，从山东省一材料经多代自交育成自交不亲和系８２１３７，经杂交育成大白菜一代杂种北京小杂６１号。该品种结球紧实，品质优良，生长期６０～６５ｄ（天），耐热，抗病毒病、霜霉病和黑斑病，净菜产量４０００～５０００ｋｇ·（６６７ｍ２）－１。现已在北京、河南、山东、新疆、四川、福建、辽宁等地推广应用。更多还原

【Abstract】 Chinese cabbage F1 hybrid Beijing No.61 was developed by hybridization between selfincompatible line 8540 and 82137. It is characterized by early maturing,heat tolerance,disease resistance,tight heading,high quality,and high yield. This variety has approved by Beijing Variety Committee,and extended in Beijing,Henan,Shandong,Xinjiang,Sichuan,Fujian,Liaonin.更多还原