| 摘 要： | Somatic embryogenesis was successfully induced with auxin in high concentration from immature cotyledons of 18genotypes of soybean(Glycin emax(L)Merr．)adaptable for planting in Northeast China．The frequency of somatic embryogenesis varied from 0．29％to77．62％among 18genotypes of soybean．The proliferative somatic embryos were obtained from 10genotypes of soybean at rate of 5．2％-22．1％．For the first time．plantlets were obtained even after subcultured and maintained on solid medium for over one year．This system provided a new and efficient receptor for genetic transformation of soybean．
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