Studies on the Anther Culture of Oryza rufipogen Griff Ⅰ.Studies on the Enhancement of the Induction Rate of Callus and the Differentiation Rate of Green Plantlet Advances in Studies on Hairy Roots Induction of Araliaceae Biochemical Changes during Construction of Female Flowers in Derooted Seedlings of Cucumis sativus L. in vitro with Exogenous Hormone KT Treatment Induction Technique of Picea koraiensis Nakai Embryogenic Callus Regulating the Cell Growth and Shoot Induction of Crocus sativus Embryogenic Callus by Rare Earth Elements Establishment of an efficient regeneration system of Jijing88 STUDIES ON RICE EMBRYOGENIC CALLUS INDUCTION AND SEVERAL TECHNICAL PARAMETERS FOR THEIR GENETIC TRANSFORMATION RELATIONSHIPS BETWEEN INDUCTION RATE OF EMBRYONIC CALLUS AND ENDOGENOUS HORMONES CONTENT IN MAIZE