New progress on wild soybean survey in Heilongjiang province

The wild soybean(G.soja)resource growing in Heilongjiang province was re-investigated during 2001—2005.We have established sites of northern and eastern boundary for wild soybean growing in China.More than 1000 wild soybean accessions were collected and conserved.We have obtained some progress in evaluation and utilization of wild soybean germplasm.Fourteen wild soybean accessions in which isoflavone content was more than 0.45% were screened.With wild soybean we have developed three new soybean lines,longpin 8802-1,longpin 03-324 and longpin 03-311,with high quality and diseases resistance.