Effects of Different Treatments on Hardwood-Cutting Rooting and Related Oxidase Activity Changes during Rooting of Corylus avellana Genetic Diversity of Six Corylus Species in China Detected with Microsatellite Isolated from Corylus avellana The Investigation and Comparison of Economic Traits of 95 Hazelnut Clones in Tieling Genetic Diversity of Hazel Populations in Shanxi Province Based on SSR Markers Tannins from Corylus heterophylla (Ⅲ) CLONING AND EXPRESSION PROFILE ANALYSIS OF ChWRKY1 FROM Corylus heterophylla Fisch. Cloning and Expression Profile Analysis of MAPKKK From Corylus Heterophylla Fisch Cloning and Temporal-Spatial Expression of a CBF Homolog Associated with Cold Acclimation from Corylus heterophylla Study on the Taxonomy, Distribution, Development and Utilization of Corylus kweichowensis Hu Economic Traits of Special Nut-Processed Cultivars of Ping’ou Hybrid Hazelnuts (Corylus heterophylla×C. avellana) Study on the Medium Components Affection Pollen Germination and\nPollen Tube Growth of Corylus heterophylla×C.avellana Correlations of the Nut and Catkin Quantity Properties of Corylus heterophylla×C.avellana Tissue Culture and Rapid Propagation of Corylus heterophylla Changes in the Relevant Oxidases during Cutting Rooting of Corylus heterophylla and the Cutting Propagation Technique STUDY ON THE EFFECT OF CORYLUS CLUSTER ON PHYSICOCHEMICAL PROPERTIES OF SOIL A Micro-propagation Technique of Corylus heterophylla×C.avellana Studies on components in leaves of Corylus heterophylla (Ⅱ) Cloning and Expression Analysis of ChWRKY2 from Corylus heterophylla under Low Temperature Stress Studies on tannin components in hazel leaves of Corylus heterophylla Cloning and Expression Analysis of ChWRKY28 from Corylus heterophylla Fisch Chilling and Heat Requirements of Main Cultivars of Ping‘ou Hybrid Hazelnuts (Corylus heterophylla×Corylus avellana) STUDY ON DESCRIPTION SYSTEM OF FILBERT(CORYLUS L.) GERMPLASM RESOURCES Identification and Evaluation of Agronomic Traits for Corylus heterophylla Fisch. Accessions Study on the distribution of Corylus in China and the climatic evaluation of the suitable areas Diurnal Variation in Photosynthesis of Differently Directional Leaves in Hybrid Hazels (Corylus heterophylla×Corylus avellana) Genetic Analysis of Nut Traits on Tester Strain of Hybrid Hazelnuts (Corylus heterophylla × C. avellana) The Morphogenesis of Inflorescence and Flower in Corylus (Betulaceae)* A NEW DISTRIBUTION OF CORYLUS WANGII HU (BETULACEAE) IN SICHUAN PROVINCE, CHINA Studies on Physiological Characteristics of Corylus avellana L. during Storage and Germination Stigma Receptivity and Characteristics of Pollen Tube Growth of Corylus kweichowensis