Overcoming of Low Seedset in Sweet Potato×Triploidy/Pentaploidy Interspecific Hybrids Preliminary Studies on Isozymes and Protein of Hybrid from Brassica napus×Brassica oleracea Cytological Studies of Male Gametogenesis and Development in the Reciprocal Interspecific Hybrid F1 of Dongxiang Wild Rice (Oryza rufipogon) and Oryza sativa Characterization of Interspecific Hybrids Between Oryza sativa L. and Three Wild Rice Species of China by Genomic In Situ Hybridization Identification of Interspecific Hybrids Derived from Vitis riparia×Vitis amurensis by SSR Marker Morphological and Physiological Characteristics in Cucumis Allopolyploids with Different Ploidy Level Genome differentiation in Magonoliaceae as revealed from meiotic pairing in interspecific and intergeneric hybrids Microspore Culture of Hybrids Between Brassica napus and B. campestris Primary study on abnormalities of meiosis in some species of Dendranthema and their hybrids TETRAPLOID INDUCTION BY COLCHICINE AND IDENTIFICATION IN Cymbidium INTERSPECIFIC HYBRIDS STUDIES ON THE RELATIONSHIP OF LOW TEMPERATURE EXOTHERM AND FREEZING INJURY OF MEI FLOWER, ITS INTERSPECIFIC HYBRIDS AND THEIR PARENTAL SPECIES Protein Content and Its Gel Electrophoresis Analysis in Hybrids Derived from Crosses between Triticum aestivum and T.durum Research on Meiosis of Some Dendranthem a Species and Their Hybrids Research on Meiosis of Some Dendranthem a Species and Their Hybrids Biosystematic studies on Hystrix longearistata from Japan and Hystrix duthiei from China (Poaceae: Triticeae)