Abstract: Microspore culture of 8 allotriploid hybrids between diploid Chinese cabbage (AA, 2n=2x=20) and autotetrap loid cabbage (CCCC, 2n=4x=36) was performed in order to create the alien addition lines. The results showed that embryo p roduction frequency of the allotrip loid hybrids (ACC) was lower than
their parents. In liquid medium NLN with 15% sucrose and 0.1 mg·L^-1 6-BA, 0.2 mg·L^-1 2, 4-D, 0.05mg·L^-1 KT, the 8 lines were different, the highest of embryo production was 0.0250 embryos per bud, the average was 0.0100 embryos per bud. The p lant regeneration frequency of embryoids was only 33.3%. The chromosome number of plantlets derived from microspore culture varied from 14 to 27. The morphological characters were diverse among the different plants.

Key words: cabbage, Chinese cabbage, microspore culture, embryo, alien addition lines