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1985年在通榆县第一良种场的连作大豆地块，进行了大豆抗孢囊线虫及耐重茬品种的选育工作，先后育成了吉林23和吉林32号2个品种，这2个品种及另外4个品系都表现出很好的耐重茬性。试验结果表明：耐重茬的这几个品种在一年重茬情况下，产量基本与不重茬条件下种植根同，主要农艺性状也无明显差异;;而不耐重茬的6个品系在重茬地块种植，产量及主要农艺性状都极显著降低。在这些农艺性状中，株高可以做为鉴定大豆品种（系）耐重迎茬性的筛选指标，在此基础上，还配制了2个大豆杂交组合，并对大豆的耐重迎茬性进行了遗传分析。结果表明：大豆的耐重迎茬性属于数量性状，F2代的定向选择表明，耐重茬性的早代现实遗传力较高，因此．早优选择是有效的。完全可以通过选育具有耐重茬性的基因达到减少或预防重迎茬危害的目的。
In 1985, the first continuous crop of Tongyu County in the continuous soybean plots, the soybean cyst nematode and resistant varieties of breeding, has bred Jilin and Jilin 23 two varieties, these two varieties and The other four lines showed good resistance to continuous cropping. The results showed that under the conditions of one year of continuous cropping, the resistant varieties had no significant difference in the main agronomic traits under the condition of one year of continuous cropping; Planting, yield and major agronomic traits all decreased significantly. In these agronomic traits, the plant height can be used as the screening index to identify the tolerance of the soybean varieties (lines), on the basis of which two soybean cross combinations were also made and the inheritance analysis. The results showed that the resistance to heavy cropping of soybean belonged to quantitative trait. The directional selection of F2 progeny showed that the resistance to reproductive trait was higher in heritability in early generation. Early selection is effective. It is entirely possible to achieve the goal of reducing or preventing the hazards of replanting by breeding resistant genes.