Tisssue culture and plant regeneration of rare plant Gymnocarpos przewalskii Establishment of regeneration system of bulb from Lilium brownii Study on bitterness embedment and function improvement of Zizyphus to Eucommia ulmoides Polyunsaturated fatty acid separation from the seed kernel oil of Pinus armandi via urea clathration Determination of active constituents in fifteen species Swertia of genus by high performance liquid chromatography Directional selection of techniques applied to vegetation construction Advances in genetic engineering of grapevine HPLC chromatographic fingerprints of Rhodiola rosea in the Qingzang Plateau Studies on tissue culture technique of Rheum tanguticum Study on transformation of Nicotiana tabacum with oxalate oxidase gene Evaluation on yield and quality characteristics of alfalfa varieties Effect of soil drought stress on osmotic adjustment ability of maple leaves Effect of temperature on growth and artemisinin biosynthesis in hairy root cultures of Artemisia annua 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 Studies on stomatal length,width,density and their correlation of 3rd leaf in rice with BADH cDNA Advance of sulphate transporters of plant Progress of sex determination in plants Introduction of sweet-tasting protein thaumatin gene into tobacco through Agrobacterium-mediated system 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 salicylic acid on leaves of cucumber seedlings under water stress Comparative morphology,ecology and geographical distribution of Calophaca sinica and C.soongorica Effects of pollination on fruit growth and quality of cucumber (Cucumis sativus) Morphological and cytological observations on interspecific hybridization F1 from Cucumis sativus×C.hystrix Correlation analysis between hormone contents in ovule and leaf and fiber traits Comparative studies on fertility restoration performance of 1B/1R and non-1B/1R male sterile wheats with some alloplasmic cytoplasms Cytological observations on male sterile anther and pollen developments induced by chemical hybridizing agent GENESIS in wheat Characteristic in photosynthesis,transpiration and water use efficiency of Haloxylon ammodendron and Calligonum mongolicum of desert species Advances on genetic diversity of cotton (Gossypium) Phylogeny of Amborellaceae:a review Origin of flowers:hypotheses and evidence Study on plants containing nervonic acid Effects of vernalization temperature on flower bud differentiation and bolting of Chinese cabbage (Brassica campestris L.ssp.pekinensis) The effects of plant growth regulating substances on pollen germination and tube gowth in Fengshui pear (Pyrus serotina) Expressed of hBMP-3m gene in tobacco 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 Identification of a RAPD marker linked to a petal-controlled gene in Brassica napus RAPD analysis of CMS line and its maintainer line in Chinese Cabbage (Brassica campestris ssp.pekinensis) Primary study on vegetation succession of saline land in the bird island of Qinghai Lake The comparative studies on biochemical and physiological properties of Speeded-growth poplar and Lombardy poplar Sifting the multiplying medium of Rose rugosa stem by crossed experiment Calli induction from in vitro culture of tender stem segments in Ginkgo biloba and study on its cytology Chemical constituents of Veronica ciliate,as a psychrophyte from Northwest China Research on change of soil properities of Caragana plantation in North-west of Shanxi Province Numerical analysis of interspecific relationships in communities of Larix chinensis in Qinling Mountain 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 Studies on the characteristics of Caragana root development and some relevant physiology Studits on the morphogenesis of rhizome from seedling and the accumulation of dioscin of Dioscorea zingiberensis Adaptation strategies of seed dormancy and germination of Psammochloa villosa , a sand dune grass inhabiting Ordos Plateau, China Evapotranspiration measurements of community using weighting method Study on N,P fertilization model of Salvia miltiorrhiza in different soil fertility Effects of long-term applying micronutrients fertilization on wheat yield and N and P uptake in dryland of Loess Plateau The effect of continuous cropping year on physiological characteristics of cucumber in sunlight greenhouse Study on soils water storage capacity and availability in secondary vegetation types in Ziwuling forest region Changes of soil C,N and soil water under conversion of cropland into grassland Effect of soil drought stress on the shoot growth and water use efficiency of Quercus liaotungensis and Acer stenolobum var.megalophyllum Nitrate distribution characteristics in soil at fertilization on cucumber at sunlight greenhouse in Loess Plateau Detection on evolvement and present situation of genetic diversity of spring wheat cultivars planted in Gansu and Qinghai Provinces by SSR markers Study on genetic diversity of Oryza rufipogon Griff. by simple seqence repeat Identification of the additional glutenin subunits gene loci of T.aestivum-Th.intermedium alien addition lines TAI series with biochemical and molecular biological methods Effects of water extracts from ten plants of Compositae against wheat Seedling Effects of salicylic acid (SA) on high-temperature stress resistance of cucumber seedling Study on Zoysia seed germination characteristic and dormancy types Effects of various practice measures agronomic and quality characters of winter wheat "Henong 341" RAPD analysis of population genetic diversity of Taxus mairei Study on fingerprint analysis and bioactive functions of Eucommia ulmoides flavonoids Study on cold acclimation and freezing-tolerance mechanism of Aucuba japonica cv. Variegata Study on restoration strategies, characteristics and status of degenerated artificial Haloxylon ammodendron communities at the edge of Minqin oasis Species composition and distribution of algae in Wuquanshan of Lanzhou Study on phenotypic feature diversity of rhizobia isolated from Robinia pseudoacacia Study on niche of dominant species of subalpine scrubland and meadow community in Guandi Mountains Microscopical observation of VAM to several garden lawn plants Observation on pollen and leaf epidermis of Amphicarpaea edgeworthii by SEM A study on bryophyte associated with formation of soil crust in south fringe of Gurbantunggut Desert in Xinjiang The clonal growing characteristic in the stoloniferous herb,Potentilla anserina The vegetation development in North Ziwulin forest region in last fifty years