Preparation of sPLLA/LP microspheres and its in vitro release properties Influence of Paulownia Witches’-broom Phytoplasma Infection on Hydrogen Peroxide Produce in Affected Tissues of Tissue-Cultured Paulownia Plantlets Study on the Character of Cellulase in Monochamus alternatus Ⅱ.Effect of Some Ions on the Monochamus alternatus Cellulase Activity in Vitro Pathways of Androgenesis and Observations on Cultured Pollen Grains in Rice (Oryza saliva Subsp. Keng) Methane Production from Artificial Rumen Fermentation of Commonly Used Forages in Milk Cow Industry Effects of Calcium and Ionophore A23187 on in vitro Development of Early Embryo in Rice (Oryza sativa L.) Comparison and Analysis of Effects of Antisense Oligodeoxynucleotide Inhibition of NtGNL1 in Three Culture Systems of Tobacco Effect of endophytic fungi on growth of Anoectochilus roxhurghii in vitro culture Effect of Different Additives on Fermentation Quality and in Vitro Digestibility of Ceratoides arborescens(Losinsk.) Tsien et C.G.Ma silages Screening of Embryogenic Callus from Hybrid F1 of Caucasian Clover×White Clover Simultaneous release of index component sin Gegen Qinlian Pellets Preparation and releasing evaluation in vivo and in vitro of pH-dependent Yuchangning Tablet for colon-specific delivery STUDIES ON INDUCTION OF SOMATIC EMBRYOS AND PLANTLET REGENERATION FROM UNFERTILIZED OVULES IN VITRO CULTURE OF BLACK CURRANT (RIBES NIGRUM L.)