作者自1976年开始进行大豆孢囊线虫(Heterodera glycines)病的抗源筛选。于1981年在国内首次筛选出对大豆孢囊线虫病免疫或高抗的抗源种质龙抗SCN-781、龙抗SCN-792等。目前,我国筛选出的抗源以及Anand(1983)对美国搜集的9153份大豆资源筛选出的19份抗源,全部为小黑豆类型。其共同特点是种皮黑色、粒小、百粒重10克左右,生育期长,在黑龙江省不能正常成熟,农艺性状与优良品种相差太多太大,抗病性又与黑种皮连锁,故难以直接利用其培育出优良的抗病品种。鉴于此种情况,我们所进行的大豆孢囊线虫病抗病育种工作是分两步走的,做到抗病性转育和优良性状逐步积累。第一步是 The authors have been conducting resistance screening of Heterodera glycines disease since 1976. In 1981, we first screened the anti-SCN-781 and SCN-792 resistant or resistant to soybean cyst nematode disease in China. At present, the anti-sources screened in China and 19 anti-sources screened by Anand (1983) for 9153 soybean resources collected by the United States are all black beans. Its common feature is the seed coat black, small grains, 100 g weight about 10 grams, long growth period, can not be normal maturity in Heilongjiang Province, agronomic traits and fine varieties too much difference, disease resistance and black seed coat chain, It is difficult to directly use it to breed excellent resistant varieties. In view of this situation, we carried out the disease-resistant cyst nematode disease breeding is a two-step walk, so that resistance to disease and good traits gradually accumulate. The first step is