Generation and Cytological Research of Four Primary Trisomics in Chinese Kale(Brassica alboglabra L. H. Bailey) Generation and Cytological Research of Four Primary Trisomics in Chinese Kale(Brassica alboglabra L. H. Bailey) Selection and Identification of the SAT-chromosome Primary Trisomic of Flowering Chinese Cabbage Morphological and Cytological Characterizations of Trisomics, Double Trisomics and Double Tetrasomics in Brassica napus Determination of n+1 Gamete Transmission Rate of Trisomics and Location of Gene Controlling 2n Gamete Formation in Chinese Cabbage (Brassica rapa) Identification of the Double Trisomic and Its Primary Trisomics in Cabbage Identification of the Double Trisomic and Its Primary Trisomics in Cabbage A Study on Obtaining Primary Trisomics by the Isolated Microspore Cultureof Autotetraploid Chinese Cabbage A Study on Obtaining Primary Trisomics by the Isolated Microspore Cultureof Autotetraploid Chinese Cabbage Chromosomal Localization of Photoperiod Sensitive Genic Male Sterile Genes Using Rice Primary Trisomics Studies on the Gamete Formation and Transmission Rate of a Set of Primary Trisomics in Chinese Cabbage Identification of Double Triplo-3, 6 and Acquisition of Primary Triplo-3 andTriplo-6 in Chinese Cabbage Selection and Identification of the SAT-chromosome Primary Trisomic of Flowering Chinese Cabbage Studies on the Gamete Formation and Transmission Rate of a Set of Primary Trisomics in Chinese Cabbage Identification of Double Triplo-3, 6 and Acquisition of Primary Triplo-3 andTriplo-6 in Chinese Cabbage