Changes of Main Agronomic Traits with Genetic Improvement of Soybean [Glycine max (L.) Merr.] Cultivars in Jilin Province, China Progress in the Study of Molecular Genetic Improvements of Poplar in China Studies on Genetic Improvement of Yield and Yield Components of Wheat Cultivars in Mid-Shaanxi Area Genetic Improvement of Accumulation and Distribution of Assimilates and Source Sink Constitution of Wheat Cultivars in Mid-Shaanxi Area Progress on Research of Rice Resistance to Sheath Blight Eucalyptus Tree Improvement in Southern China——Problems and Strategies Genetic Improvement of Teak (Tectona grandis) in China Advances in Studies on Germplasm Evaluation and Genetic Improvement of Genus Poa GENETIC IMPROVEMENT OF OLEIC ACID CONTENT IN RAPESEED Genetic Improvements of Cotton Varieties in Huang-Huai Region in China Since 1950sI. Improvements on Yield and Yield Components Advances in Studies on Germplasm Evaluation and Genetic Improvement of Genus Poa Progress in the Molecular Biology of Solanum peruvianum Effects of Plangting Density on Soybean Varieties of Different Years in Heilongjiang Province Genetic Improvement of Root Growth and Its Relationship with Grain Yield of Wheat Cultivars in the Middle-Lower Yangtze River Responses of Plant Productivity and Nitrogen Use Efficiency to Nitrogen Fertilization Rate among Rice Varieties Released from Different Years in Liaoning Province Advances in Genetic Improvement of Bamboo Plants Transcription Factors Involved in Plant Secondary Metabolismand Its Application in Plant Secondary Metabolic Engineering Research and Development of Teak in China Progress in the Molecular Biology of Solanum peruvianum A Review and Perspectives on Genetic Improvement of Salt and Drought Tolerance in Tomato A Review and Perspectives on Genetic Improvement of Salt and Drought Tolerance in Tomato Characteristics of Chinese PCNA Types and Their Roles in Science and Industry of Oriental Persimmon Characteristics of Chinese PCNA Types and Their Roles in Science and Industry of Oriental Persimmon Changes of Photosynthetic Characteristics in Top Three Leaves of Rice (Oryza sativa L.) Cultivars in Released Different Years in Jilin Province Diversity Analysis by Seed Traits and ISSR marker of Xanthium sibiricum Patrin Germplasm in Shandong Province Domestication of Betula alnoides in China: Current Status and Perspectives Genetic Improvements of Cotton Varieties in Huang-Huai Region in China since 1950′s Ⅱ.Improvements on Fiber Properties The utilization of Chinese wild grape species in production and breeding The state of Utilization and Sustainable Management of Forest Genetic Resources Research progress on improving wheat drought tolerance via exotic gene introduction Genetic Improvement of Forest and Sustainable Development of Forestry in China for Next Century Achievements, Problems and Its Countermeasures of Genetic Improvement of Masson Pine Introduction and Cultivation of Pinus caribaea in China Ⅰ. Introduction and Genetic Improvement Heterosis of Populus×xiaozhuania cv.‘popularis’ Improved Hybrids F1 and Cluster Analysis for Clones according to Genetic Distance Changes of Some Leaf Characteristics in Rice (Oryza sativa L.) Varieties Released from 1958 to 2005 in Jilin Province Research progress and strategy on genetic improvement of Erigeron breviscapus STUDY ON THE GENETIC DIVERSITY OF PICEA KORAIENSIS RESEARCH ON WOOD PROPERTIES IMPROVEMENT Ⅰ. MEASUREMENT OF WOOD DENSITY WITH X-RAY WOOD DENSITIOMETER Current Progress in Studies on Post-harvest Physiological Deterioration of Cassava Storage Roots Evaluation and selectionon drought-resistance of germplasm resources of Avena species with different types of ploidy