Problems and outlook of quality evaluation of Chinese materia medica under guidance of modern scientific thinking Formation of aggregation by Phaeocystis globosa (Prymnesiophyceae) in response to high grazing pressure The Competitive Model of Diameter Growth of Chinese Fir (Cunninghamia lanceolata Hook) after Thinning and Its Applications Comparison on the competitiveness of the invaded pokeweed with its accompanying species in the coastal protection forest of Shandong Peninsula Experiments of mixed culture and calculation of competitive parameters between Microcystis (Cyanobacteria) and Scenedesmus (Green algae) Effect of substitution ratio of Imperata koenigii on competitiveness and growth potential of three species of cold season lawn grass SCREENING OF HYBRIDOMA SECRETING MCAB TO ENROFLOXACIN AND DEVELOPMENT OF COMPETITIVE ELISA ENR-KIT DEVELOPMENT OF DIRECT COMPETITIVE ELISA KIT FOR SUDAN Ⅰ