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Chemical constituents from flower buds of She Medicine Magnolia liliflora Phenolic constituents from twigs of Acer rubrum and their anti-oxidation and anti-α-glucosidase activities Studies on flavonoids from Abies ernestii var. salouenensis Chemical constituents from Pleione bulbocodioides Chemical constituents of monoterpenes in fruits of Gardenia jasminoides Chemical constituents from Scolopendra multidens (I) A new essential oil component from Datura stramonium Chemical constituents of flavonoid glycosides in extract from Ginkgo biloba leaves used for injection Chemical constituents from Cardamine leucantha Cloning and sequence analysis of glyceraldehyde-3-phosphate dehyrogenase gene from Conyza blinii Chemical constituents in antiviral fraction of Isatidis Radix and their activities Chemical constituents from barks of Zanthoxylum planispinum Chemical constituents from roots of Ricinus communis Chemical constituents of Phyllanthus amaus Chemical constituents from roots of Ricinus communis Chemical constituents of Eleutherine americana Chemical constituents of Eleutherine americana Studies on chemical constituents of Guizhi Fuling Capsule (Ⅲ) Chemical constituents of Astragalus membranaceus var. mongholicus Correlation between quality of Alisma orientale in Sichuan Province and rhizosphere soil physicochemical property Effect of disodium quercetin-7,4′-disulfate on enzyme activity of recombinant human phosphoinositide 3-kinase p110 catalytic subunit Alkaloids isolated from Buyang Huanwu Decoction and their structure identification Studies on chemical constituents of Lethariella cladonioides Studies on chemical constituents of Indigofera carlesii Determination of quercetin-3-O-β-D-glucopyranosyl -7-O-β-D-gentiobioside in Semen Descurainiae by HPLC Studies on Chemical Constituents in the Peels of Citrus changshan-huyou (I) Studies on Chemical Constituents in Fruits of Tibetan Medicine Phyllanthus emblica Effect of catalpol,berberine。and their combination on expression of Giut4 protein and C-Cbl associated protein in insulin resistant 3T3-L1 adipocytes Chemical constituents from Clerodendrum canescens Effects of DCD addition on grain yield, N2O emission and residual nitrate-N of spring maize in rain-fed agriculture Effect of dripper fertigation on tomato yield and apparent N balance in a greenhouse The effects of NaCl on affinity nitrate transport system in Suaeda physophora Pall. Study on the relationship between irrigation amount and NO3--N leaching of tomato field in greenhouse Effects of water condition and nitrogen level on soil dissolved nitrogen compounds Effect of postponing N application on soil N supply, plant N uptake and utilization in winter wheat Analgesic Effect and Gastro-intestinal Motility Inhibitory Action of 3-Hydroxy-4-methoxy-acetophenone from Cynanchum paniculatum (Bunge) Kitagawa A Study on the Chemical Constituents of Aster albscons Hand.-Mazz Studies on the Constituents of Essential Oil of Imported Myrrh and Gum Opoponax Influence of different NH4+/NO3- ratios on nitrogen metabolism of cotton Effect of the combination of cadmium and UV-B radiation on soybean growth New advances in seed geography Temporal and spatial variations of soil NO3--N in Orychophragmus violaceus/spring maize rotation system in North China. Effects of different nitrogen forms and their ratios on broccoli yield, quality, and nutrient absorption. Construction of Recombinant E. coli JM109 Capable of Producing 3-Hydroxypropionic Acid and Its Fermentation Condition Optimization Flavonoid Metabolites from Lysimachia fortunei Maxim. Chemical Constituents from the Twigs of Calophyllum inophyllum Linn. Study on the Chemical Constituents from Chinese Eaglewood in Hainan Effects of NH4+-N/ NO3--N ratios on kinetics of nitrate uptake by two typical lettuce genotypes in hydroponics Influence of NO3-∶ NH4+ ratio on growth and chlorophyll content in pakchoi Effects of nitrate uptake on the changes of plasma membrane potential of rice roots Effects of medium pH and N forms on aerenchyma formation in roots of different rice genotypes Nitrogen cycling and balance in agricultural ecosystem in piedmont plain of Taihang Mountains Genotypic difference of maize lateral roots in response to local nitrate supply Studying on Effect of Cd in Combination with UV-B on Physiological Mechanism in Regulation of Soybean Epicotyl Growth Nitrogen fertilizer effects on N recovery and residual soil NO3--N for greenhouse-grown tomato Characteristics of nitrous oxide (N2O) emission from a headstream in the upper Taihu Lake Basin A Study on the Pollen Morphology of Actinidiaceae and Its Systematic Position 从菟丝子种子中,分离出4个黄酮类化合物,经理化和光谱分析鉴定为槲皮素、紫云英甙、金丝桃甙和槲皮素-3-O-β-半乳糖-7-O-β-葡萄糖甙。 Studies on the Chemical Constituents of Hemsley Melodinus (Melodinus hemsleyanus) Cloning and analysis of hmgr gene conserved fragments in Descurainia sophia Uptake of bok-choy and Ipomoea aquatica Forsk to iodine species Integrated nitrogen management in greenhouse tomato production Effect of controlled-release urea combined application with urea on nitrogen utilization efficiency of winter wheat Study on the effect of different fertilizer-soil ratios on NO3--N concentration Effect of fertilization on distribution of nitrate in cucumber and soil in sunlight greenhouse Study on nitrogen movement under localized compaction and ridge tillage by use of artificial rainfall Study on the nitrate reduction characteristic of vegetables A long-term experiment on effect of organic manure and chemical fertilizer on distribution,accumulation and movement of NO3-N in soil Chemical constituents from resin of Dracaena cochinchinensis Chemical constituents of Helicia nilagirica seeds (Ⅰ) Cloning and Sequence Analysis of F3H Gene cDNA from Longan Embryo Cloning and Sequence Analysis of F3H Gene cDNA from Longan Embryo The Differences of Subcellular Ca2+ Distribution in Root Meristem Region ofCucumber Seedling Under Different NO3- Concentrations Stress Pollen Morphology of the Genus Nomocharis and Its Delimitation with Lilium Construction a Metabolic Engineering Strain to Produce 1，3-propanediol from Klebsiella pneumoniae by ldhA Gene Deletion Mutation Breeding and Fermentation Characterization of Mutants of Bacillus licheniformis for 2，3-Butanediol Production Research Advances on the Mechanism of Glyceraldehydes-3-phosphate Dehydrogenase in Plant Chemical constituents in roots of Pandanus tectorius Chemical constituents from whole herb of Paederia scandens var. tomentosa Application of multiple techniques in free radical scavenging material screening