1984～1989年在对不结球白菜种质源抗芜菁花叶病毒（TuMV）鉴定的基础上，利用杂种优势育种技术，以抗病矮脚黄雄性不育两用系为母本、抗病矮脚黄和雪克青自交系为父本，选育出综合性优良的矮抗二号和矮抗三号新品种。其特点：（1）丰产：生产试验平均产量分别达52.4和56.6t/hm2，比对照矮脚黄分别增产29.9%和40.2%；（2）抗病：两品种TuMV和霜霉病人工是鉴定病情指数比对照分别降低79.5%、98.7%和69.8%、88.0%；（3）优质；矮抗二号叶片重/叶柄重比对照提高17.0%，矮抗三号略低于对照，但其Ve、灰分、叶片和叶柄中可溶性固形物含量等主要营养成份均高于对照，且纤维素含量低；（4）商品性好：矮抗二号叶柄短且宽，色白。矮抗三号叶柄短且宽，色绿白，分别符合全国大部分喜食食白梗菜和青梗菜两大类型地区的消费习惯。

选取84份经芜菁花叶病毒（TuMV）、霜霉病菌[Peronospora parasitica (Pers.) Fr.]、黑斑病菌[Al-ternaria brassicae (Berk) Sacc.]单抗鉴定后筛选出的自交系，于1992～1993年对其进行上述3种病害苗期人工诱发接种多抗性联合鉴定，获得21份三抗材料。经鉴定，确认为三抗抗源材料。探讨了多抗性联合鉴定的技术与方法。

1984～1989年在地种质资源抗芜菁花叶病毒（TuMV)鉴定的基础上，采用系谱选择和母系选择法相结合的途径，选育出综合性状化优良的矮抗一号新品种。其特点：（1）高产：生产试验平均亩产达3121.5kg。比对照矮脚黄增产16.1%；（2）抗病：TuMV和霜霉病人工鉴定病情指数为22.17和5.8，比对照矮脚黄降低72.2%和87.1%，与田间鉴定结果一致；（3）优质：叶片重/叶柄重达0.70，比对照提高48.9%，维生素C、灰分和叶柄中可溶性固形物等营养成分含量均高于对照，而粗纤维含量低；（4）商品性好：植株矮，叶片大，叶柄短且宽，符合喜食白梗菜地区的消费习惯。

1984～1988年以87个不结球白菜自（近）交系为原始材料，进行了芜菁花叶病毒（TuMV）抗性是鉴定，并选留无症或轻症单株进行了4轮系谱选择。试验结果表明，未经筛选的原始材料均为高感，在高感群体中选择无症或轻症单株进行系谱选择后，抗病性逐渐提高，选择效应随品种和世代而异。经4轮系谱选择后获得15个抗芜菁花叶病毒的株系，作为抗源加以保存和有效利用。

To establish a highly efficient system for shoot regeneration in vegetable soybean (Glycine max (L.) Merrill), explants were obtained from six genotypes and adventitious shoots were regenerated from cotyledonary nodes cultured on medium supplemented with different concentrations of N-phenyl-N′-1, 2, 3-thiadiazol-5-ylurea (thidiazuron TDZ) and 1-naphthylacetic acid (NAA). The most effective combination of plant growth regulators was selected first and then the effects of medium types, inoculation methods and genotypic differences on shoot regeneration were studied. The explants were inserted either vertically or horizontally into the medium and five basal media, including B5, ½ B5, MS, ½ MS, and MSB (MS salts and B5 organics), were tested. The shoot regeneration frequency of the six genotypes ranged from 53.5% to 88.9% and three of them reached 88.9%, 87.5% and 83.3% respectively on B5 medium supplemented with 1 mg•L-1 TDZ, 0.05 mg•L-1 NAA, and 5 mg•L-1 AgNO3. The shoot regeneration frequency of explants cultured on B5 medium was significantly higher than that of the other four basal media. The vertically inserted explants were found to yield a higher shoot regeneration frequency than that of horizontally inserted ones; the maximum difference of regenerating percentages between the two methods was 37.5%. In summary, TDZ was an efficient plant growth regulator for shoot induction. B5 medium and vertically inserted explants promoted shoot regeneration. We believe this highly efficient shoot regeneration system will provide foundation for the further transgenic studies in vegetable soybean.