摘要： 利用二倍体和四倍体大白菜,通过正反交,连续6年共做52个组合,从1985年的水仙花(四倍体)×后36高(二倍体)和1987年的BP058(二倍体)×水仙花(四倍体)两个组合得到了少量杂交种,经系谱选择并在人工气候室加代,提高孕性,均于第四代基本稳定。1989年将这两个杂交种分别定名为翠宝和翠绿。它们具有多倍体植物叶厚、叶面有泡状突起、蕾大、花大、气孔也大的特点,经染色体镜检,染色体数2n=4x=40。这两个品种生长速度快,生育期80天左右,包球紧实,抗病性强,品质优良,适口性好,耐贮藏运输,亩产7000～7500kg。

关键词: 大白菜, 二倍体, 四倍体, 杂交种, 育种

Abstract: Using diploid and tetraploid Chinese cabbages 52 different combinations of reciprocal crosses were made since 1933, Two hybrids were obtained from crosses of Shuixian Hua( 4 x) xHou 36 Gao(2x)and BP058(2x)x Shuixian Hua(4x) in 1935 and 1931 respectively, They were fundamentally stable in segregation in F,.The chromo}om: numbers were proved to be 2n=4x=40, n=2x=20, They were respectively named as Cuibao and Cuiluin 1989, Of the two hybrids, the Cuilu is more desirable to fit the purpose of breeding, They have following characteristics; esrly m}.turity，high resistance to soft rot, downy mildow aa1 vira;.Their quality is good and the yield is high (7500 kg/rnu).

Key words: C hinese cabbage, Hybrids , Diploids , Tetraploid, Breeding