S 第13页

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 Comparison on extraction methods of Ziziphus jujuba and Ziziphus acidojujuba DNA for RAPD analysis DNA extraction on three different materials of Larix chinensis Flavonoid glycosidesfrom Galeopsis bifida 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 Revision of Kobresia (Cyperaceae) in Qinghai Direct cloning andsequencing of restricted fragments with cohesive-ends by means of TA cloning The interaction of NCS with phytohormones 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 Comparative and the correlative studies on the structure and the content of anthraquinones in 3 Aloe leaves Adaptation strategies of seed dormancy and germination of Psammochloa villosa , a sand dune grass inhabiting Ordos Plateau, China Advances in Sargentodoxa 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 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 plant moisture stress of Sophora viciifolia in the Loess Area North of Shaanxi province 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 Cloning of potato polyphenol oxidase gene and constructing of antisense PPO expression vector Identification of the additional glutenin subunits gene loci of T.aestivum-Th.intermedium alien addition lines TAI series with biochemical and molecular biological methods Sustainable utilization of grassland resources in west segment of Qilian Mountains and Jiuquan Basin Evaluation and analysis about ecosystem health of artificial plants in Shapotou aera Characteristics of the soil seed bank and the seedling bank in fenced sandy meadow Effects of water extracts from ten plants of Compositae against wheat Seedling