Optimization and formation SRAP system in Hedychium A Study on the Connection of D iversity with Phylogeny of Vessel Perfora tionPla tes of Taxon of Rhododendron Sect. B rachyca lyx Sweet ( Er icaceae) Scanning Electron Microscopic Observations of Cytoskeletal Arrangement in Wheat Young Leaf Cells and Its Intercellular Connection Interconnection Among Dominant Plant Populations of Castanopsis Community in Jinggang Mountain Nature Reserve THE ESTABLISHMENT AND APPLICATION OF MATHEMATIC MODEL FOR CORN REGIONAL PRODUCTION IN HEILONGJIANG PROVINCE Analysis on the responses of flood storage capacity of Dongting Lake to the changes of landscape patterns in Dongting Lake area On Skidding Ropeway For Plantation Thinning Spatial Distribution Pattern and Interspecific Association of Main Tree Species in Pinus tabulaeformis Forest in Ziwuling Mountains Stable carbon isotope characteristics of some woody plants in warm temperate zone