Cloning and Sequence Analysis of Beta-1,3-glucanase Gene cDNA in Brassicacampestris ssp. chinensis Identification and Analysis of Heat Tolerance Identification and Analysis for Brassica campestris ssp. chinensis Isolated Microspore Culture in Brassica campes tris ssp. chinensis Effect of Hormones on the Regeneration of Different Explants of GMS Line in Brassica campestris L. ssp. chinensis Studies on Tetraploid Breeding Techniques by Using Isolated Microspore Culture Techniques in Brassica campestris ssp. chinensis(L.)Makino Effect of Hormones on the Regeneration of Different Explants of GMS Line in Brassica campestris L. ssp. chinensis Studies on the Induction of 2n Gamete in Chinese Cabbage and the Production of Tetraploid by Sexual Polyploidization Studies on the Induction of 2n Gamete in Chinese Cabbage and the Production of Tetraploid by Sexual Polyploidization Genetic Differentiation of Non-Heading Chinese Cabbage (Brassica campestris ssp. chinensis Makino) Germplasm Based on SRAP Markers MOLECULAR CHARACTERIZATION AND EXPRESSION PATTERN OF RALF-LIKE GENE BcMF14p FROM Brassica campestris var.purpurea Preliminary Study on Tissue Culture Technique in Brassica campestris L. ssp. chinensis var. utilis Molecular Clon ing and Sequence Analysis of GLDH Gene cDNA from Brassica campestris ssp. chinensis cDNA-AFLP Analysis on Genes Associated with Vernalization in Vitro inBrassica campestris ssp. chinensis Molecular Clon ing and Sequence Analysis of GLDH Gene cDNA from Brassica campestris ssp. chinensis cDNA-AFLP Analysis on Genes Associated with Vernalization in Vitro inBrassica campestris ssp. chinensis