Competition Relationship of Populations of Natural Secondary Acer mono Forest Intraspecific and Interspecific Competition of Tree Layers in Natural Pinus tabulaeformis Forest in Ziwuling Mountains A New Raspberry Cultivar ‘Hong Baoda’ Advances in studies on tumor prevention of black raspberry from America STUDIES ON THE ULTRAMICRO STRUCTURE OF BACILLUS THURINGIENSIS SPORANGIUM Effect of Cluster Planting Pattern on Intraspecific Interactions of Cotton STUDIES ON THIN-LAYER CHROMATOGRAPHY OF FLAVONIDES FOR DIFFERENT POPULATIONS IN ALLIUM HOOKERI AND ITS RELATIVE SPECIES Karyotype studies on twenty-one populations of eight species in Allium section Rhiziridium Pollen Morphology and Its Taxonomic Significance of Caragana Fabr. (Fabaceae) from China Analysis of the Genetic Structure of Sclerotinia sclerotiorum (Lib.) de Bary Populations from Different Regions and Host Plants by Random Amplified Polymorphic DNA Markers Intraspecific differentiation of Pleurospermum hookeri (Apiaceae), and its interspecific relationships with two close relatives in the genus Pleurospermum Size-symmetric competition in a shade-tolerant invasive plant A comparative study on intraspecific competitiveness of different ploidy wheats Optimization of Shoot-tip Culture System for Raspberry Intraspecific and Interspecific Competitions of the Dominating Plant Populus euphratica in the Desert of Tarim Study on Intraspecific and Interspecific Competition in Abies fargesii on Taibai Mountain