Amplification and Sequence Characterization of ITS in Camellia APPLICATION OF ODO FREEZE CRACKING METHOD FOR SPECIMEN PREPARATION OF POLLEN GRAINS UNDER SCANNING ELECTRON MICROSCOPY Variations of the concentration of dimethyl sulfur compounds during three algal blooms in a mesocosm experiment in vitro Induction,Identification and Physiological Characteristics of Autotetraploid Dendrobium officinale Effects of Different Treatments on Frequency of Wheat Haploid Embryo Production through Wheat × Maize Inducing Autotetraploid Pea with Colchicine and DMSO BREEDING OF NEW SWEET POTATO CULTIVAR DUANWAN 3 WITH SHORT VINE BY COLCHICINE AND DIMETHYL SULPHOXIDE INDUCED MUTATION EFFECTS OF DMSO ON THE INDUCTION AND THE REDIFFERENTIATION OF CALLUS FROM RICE SEEDS Effects of DMSO on the cold-resistance of wheat seedlings