Effects of Shading on Growth and Photosynthetic Capabilities of Tobacco Leaves of Cigar-wrapper Use Spatial Distribution Pattern of Populus euphratica Populations in the Lower Reaches of Tarim River Optimized Grazing Intensity of Yak in Alpine Kobresia parva Meadow Tissue Structure and Near-infrared Reflectivity and Their Affecting Factors of Flue-cured Tobacco Leaves Photosynthetic Characteristics of Six Plant Species in Quercus aliena var. acuteserrata Community at Huoditang Forest Region of Qinling Mountains Relations between Carbonic Anhydrase Activities and Photosynthetic Rates in the Leaves and Pods of Plants Seed Plant Florae in Mabian Dafengding National Nature Reserve Community Structure and Species Diversity in Liangucheng Nature Reserve of Minqin County Use of ITS Sequences Based on Nuclear rDNA for Phylogenetic Research of Seed Plants Construction of the High-efficiency in Vitro Regeneration System for Two Cucumis melo Cultivars Relation between Cytoplasmic Male Sterility and Reactive Oxygen Species Metabolism in Pepper Origin of Vesicular Inclusions in the Vacuoles of Ammopiptanthus mongolicus Megasporogenesis and Gametophyte Microsporogensis as Well as Male and Female Gametophyte Development of Saposhnikovia divaricata Phylogenetic Review of Ceratophyllaceae Ecological Relationship of Garden Plants in Beijing--A Case of Rose Garden in Taoranting Analysis of Essential Oil from Seriphidium transiliense by GC-MS Structures and Diversity of Insect Communities under Different Types of Vegetation Rehabilitations of the Hilly and Gully Loess Regions Classification and Ranking of the Forae Naturally Recuperating on the Farming-Withdrawn Land in the Hilly and Gully Regions of the Loess Plateau Position Study of the Relations between Vegetation Degeneration and Annual Rainfall in the Sand Region of Minqinxian County Relationship of the Protective Enzymes of Desert Vegetations with Water Table in the Lower Reaches of Tarim River Optimization of the Regeneration Protocol of Rosa canina cv.‘Edelcaninas’Meristem Virus-induced Gene Silencing in Tobacco Ultra-structure of the Inclusions of the Vacuoles in the Infected Cells of Onobrychis viciifolia Root Nodules Development of Vascular Bundles in Aloe arborescens Leaves Preliminary Study of the Mechanisms of Natural Vegetation Regeneration in Arid Desert Regions Diversity of Leguminous Rhizobia in Pamirs Plateau of China Influence of Low Doses Microwave Radiation on Activities of Antioxidative Enzymes of Isatis indigotica Seedlings Exposed to Enhanced UV-B Radiation Exploration of the Speed-limiting Process for Taxol Biosynthesis Resorting to Quantitative PCR Anatomical Changes of the Leaves of in vitro Euphorbia pulcherrima Seedlings During Their Post-transplantation Domestication Adaptabilities of Jujube Varieties of Fresh Use in North Shaanxi Province Analysis and Appraisal of Heavy Metal Pollution of Main Vegetables Production Area in Shaanxi Province Flora of Seed Plants in Jingpohu Lake Nature Reserve Molecular cloning of methionine-metaboly correlated cDNA in Astragalus melilotoides Pall.variant line and its expression in E.coli Research Advances in Molecular Basis of the Variations and QTL Cloning of Quantitative Plant Traits Roles of miRNA in Plant Development and Adaptabilities Reproductive strategy of grassland plant Advances in studies on the relationships between tree-ring width and climatic factors Effect of K+,Na+ on isolated leaves‘‘ stomatal movement of rich potassium plants Effects of solution of extracts from Nostoc commune on vegetative growth and flowering of some garden plants Effect of different human-caused disturbances on above-ground biomass and productivity of Pinus massoniana forests Study of comparative anatomy on structure of seedlings of Acorus tatarinowii and Zantedeschia aethiopica Comparative study on characteristics of leaf structure of Papaver croceum Ldb.(Papaveraceae) in two altitudes habitat at cold regions Breeding strategy of male sterile maize line with thermo-photoperiod sensitivity Study on the polypeptide composition and content of LHCⅡ and the cab gene transcription in chlorophyll-reduced mutant of oilseed rape seedlings Floral ontogeny of Rivina humilis (Phytolaccaceae) Mathematical models of multiple objective analytics for sustaining utilization water resources in inland river valley Determination of active constituents in fifteen species Swertia of genus by high performance liquid chromatography Liposoluble constituents of Scrofella chinensis Directional selection of techniques applied to vegetation construction Advances in genetic engineering of grapevine Influence of 0.05 g/L 2,4-D on facultative apomixis in Apluda mutica Recovery of cucumber (Cucumis sativus L.) haploid plants through pollination by irradiated pollens and embryo culture Evaluation on yield and quality characteristics of alfalfa varieties Effect of soil water stress on water metabolism and osmotic adjustment substance of native tree species of Loess Plateau Effects of soil water stress on contents of chlorophyll,soluble sugar,starch,C/N of two desert plants (Cynanchum komarovii and Glycyrrhiza uralensis) Physiological and ecological effects of enhanced UV-B radiation on wheat seedling under NaCl stress condition Cloning and sequence analysis of DHN1 gene from Salvia miltiorrhiza Responses of contents of soil nutrient factors and water to stocking rates for yaks in Kobresia parva alpine meadow Ⅰresponses to contents of soil nutrient factors and water to stocking rates in summer pasture Effects of pollination on fruit growth and quality of cucumber (Cucumis sativus) The combined effects of enhanced UV-B radiation and CO2 on the growth and photosynthesis of broad bean seedling Advances on genetic diversity of cotton (Gossypium) Phylogeny of Amborellaceae:a review Study on plants containing nervonic acid Effects of vernalization temperature on flower bud differentiation and bolting of Chinese cabbage (Brassica campestris L.ssp.pekinensis) Study of salt-soluble globulin from black soya (Semen glycine) A numerical taxonomy of the genus Nitraria from Gansu province,China Studies on genetic diversity of Scutellaria tsinyunensis of endemic species from Mt.Jinyun of Chongqing Primary study on vegetation succession of saline land in the bird island of Qinghai Lake Calli induction from in vitro culture of tender stem segments in Ginkgo biloba and study on its cytology Flavonoid glycosidesfrom Galeopsis bifida Chemical constituents of Veronica ciliate,as a psychrophyte from Northwest China A study on interspecific association of principal tree species in the communities including Quercus variabilis on the Qinling and Bashan Mt. Change of soil organic matter and water holding ability during vegetation succession in Ziwuling region A floristic study on seed plants in the upper reaches of Minjiang river Revision of Kobresia (Cyperaceae) in Qinghai Studies on the characteristics of Caragana root development and some relevant physiology Adaptation strategies of seed dormancy and germination of Psammochloa villosa , a sand dune grass inhabiting Ordos Plateau, China Vascular developmentin the transition region of dicotyledonary epigeal seedlings Evapotranspiration measurements of community using weighting method Study on N,P fertilization model of Salvia miltiorrhiza in different soil fertility