EFFECT OF CHEMICAL CONTROL ON WEED CROWUNITY IN WHEAT FIELDS THE RELIABILITY ANALYSIS OF THE MODEL FOR PREDICTING PESTICIDE RESIDUE STUDIES ON CHEMICAL CONTRTOL TECHNIQUE OF WHEAT SHARP EYESPOT STUDIES ON THE ARTIFICIAL DIETS FOR BEET ARMYWORM ECONOMIC DAMAGE TO JAPONICA RICE BY THE SECOND GENERATION POPULATION OF THE WHITE-BACKED PLANTHOPPER INTEGRATED CONTROL PROGRAM OF CITRUS HUANGLONGBIN DISEASE IDENTIFICATION AND PATHOGENICITY OF THE PATHOGENS OF CORN EAR OR KERNEL ROT STUDY ON THE CONTROL TECHNOLOGY OF RICE BACTERIAL LEAF BLIGHT (XANTHOMONAS ORYZAE) THE EFFECT OF SALICYLIC ACID ON RESISTANCE TO BACTERIAL LEAF BRIGHT IN HYBRID RICE SCREENING TESTS AND PRELIMINARY STUDY ON THE INSECTICIDAL ANTIBIOTICS AND THEIR EFFECT IN CONTROLLING HELICOVERPA ARMIGERA EVALUATION OF INSECTICIDAL CYTOTOXICITY BY MTT METHOD STUDIES ON INSECTICIDAL ACTIVITY OF THE ANISE OIL AND ANALYSIS OF ITS COMPONENTS ELECTROPHORETIC BANDING PATTERNS OF PROXIDASE ISOENZYME OF 2 SPECIES OF CIRSIUM AND THEIR TAXONOMIC SIGNIFICANCE A QUANTITATION STUDY OF THE INTESPECIFIC ASSOCIATION OF QUERCUS ALIENA VAR. ACUTESERRATA COMMUNITY IN XIAOLONGSHAN MOUNTAIN OF TIANSHUI THE RESPONSE OF MIDDAY DEPRESSION OF DIURNAL VARIATION OF NET PHOTOSYNTHETIC RATE OF WHEAT LEAVES ON ECOLOGICAL FACTORS IN THE FIELD ENVIRONMENT OF QINGHAI PLATEAU 石刁柏花药培养再生植株的生根研究(Ⅱ) LONG-TERM CULTURE AND CHROMOSOME VARIATIONS OF EMBRYOGENIC CALLI IN MAIZE THE CHARACTERISTICS OF FLORA IN THE ZHONGTIAO MOUNTAIN INTERSPECIES TEST-TUBE FERTILIZATION IN NICOTIANA TABACUM X N.REPANDA OBSERVATION OF THE LEAF STRUCTURE OF TWO DAVIDIA INVOLUCRATA BAILL SPECIES 八倍体小偃麦与普通小麦杂交后代花药培养的研究 The Fine Scale Spatial Heterogeneity of Soil Physical Properties in a Primary Tropical Montane Rainforest of Jianfengling, Hainan Island, China Characteristics of Environmental Effects in the Landscape Shelter Forest along the Aerodrome Road in Guangzhou Effect of Different Nitrogen Forms on Root Growth and Dynamic Kinetics Characteristics for Citrus sinensis×Poncirus trifoliata Research Progress in Reproduction Techniques and Pharmacological Active Components of Aralia elata THE SYNERGISM OF THURINGIENSIN IN THE MIXTURE WITH ENDOGENOUS Bt CRYSTAL ON DIAMOND-BACK MOTH A FUZZY SYNTHETIC DECISION FOR THE RESISTANCE OF RAPE VARIETIES TO RAPE APHIDS INDUCING FACTORS OF PUPAL DIAPAUSE IN HELICOVERPA ARMIGERA RACE DYNAMIC OF PUCCINIA GRAMINIS F. SP. TRITICI IN CHINA IN 1993 STUDY ON THE INTEGRATED MANAGEMENT OF CITRUS CANKER PATHOGENICITY DIFFERENTIATION OF ALTERN ARI A ALTERN AT A AND INDUCED RESISTANCE OF TOBACCO TO BROWN SPOT BY WEAK VIRULENCE STRAINS STUDY ON RESISTANCE OF THREE COTTON SPECIES TO MAIN COTTON DISEASES A New Species of Ilex from Hunan Province Two New Species of Yulania Spach from Hubei Province of China Inhibitory Effect of Algae Growth and HPLC Analysis of Allelochemicals from Stephania tetrandra Peristome Morphology of Bryum Hedw. (Musci:Bryaceae) and Its Taxonomic Significance The Mniaceae in Bailong River Basin of Gansu,China Studies on Optimization of ISSR Amplified Conditions in Kudingcha Species in Oleaceae of China The Morphology and Process Changes of Peltate Glandular hairs in Alnus mandshurica Leaf Epidermis A New Species of the Genus Dianthus from Xinjiang,China Genetic Diversity of Part of Large Bryophyte in Northeast Region Using RAPD Magnolia glaucophylla,a New Species of Magnoliaceae from SE Yunnan,China Morphological and RAPD genetic differentiation of Stipa krylovii in middle and eastern Inner Mongolia steppe Studies on the genus Schiffneria Steph. (Hepaticae) Two new species of Cyanophyta from Jilin Province, China Effects of Biomagnetic Effect on the Bioactive Metabolite Production in Fruiting Body of Cordyceps militaris Interspecific Relationships among the Dominant Weeds Species of Tobacco Field in Guizhou Province Preparation, Characterization and Evaluation of in vitro Release of Folate-Conjugated Carboplatin and Paclitaxel -loaded Bovine Serum Albumin Tumor-targeting Nanoparticles Effects of TDZ on Polyamines Concentration Changes during the Construction of Floral-buds in Derooted Seedlings of Dendrobium officinate Kimura et Migo in vitro Biomass Allocation Pattern and Water Characteristics of Each Component of Phoebe bournei Container Seedling Urtica malipoensis,A New Species of Urticaceae from Yunnan Optimization of SRAP-PCR System for Opisthopappus taihangensis(Ling) Shih by Uniform Design Relationships of Pinus koraiensis Cone Production with Stand and Climate Factors Genetic Transformation of CYP79F1 Gene in Brassica oleracea var. italica Construction of Brucella rOmp3148-74-BLS Expression Vector and Its Transformation into Alfalfa The Gene Cloning,Prokaryotic Expression and Purification of Rice Zinc Finger Protein OsRZ3 Delphinium furcatocornutum,A New Species of Ranunculceae from Sichuan Ultrasonic-assisted Extraction of Polysaccharide from Eucommia ulmoides and Evaluation of its Antioxidant Activity Critical Cis-acting Element in the Promoter of the Stress-tolerant Gene AtRPK1 Relationships Between Stand Spatial Structure Characteristics and Influencing Factors of Broad-leaved Korean Pine(Pinus koraiensis) Forest in Liangshui Nature Reserve,Northeast China Aconitum qianxiense,a New Speceis of Ranunculaceae from Hebei A New Species of Sonerila Roxb.(Melastomataceae) from Fujian Province Ranunculus laohegouensis,a New Species of Ranunculaceae from Sichuan Effect of Disturbance on the Community Species Diversity in Yunding Mount. Subalpine Meadow Characteristics of Osmunda vachellii Communities and Species Diversity from Mount Maluanshan in Shenzhen Comparison of Species Composition and Diversity of Four Successional Forest Communities in Zhejiang Province,East China Expression,Purification and Immunoreactivity of Hygromycin-B-Phosphotransferase Effects of Water Stress on Plasma membrane Permeability and Protective Enzyme Activities of Red Pine Seedlings Needles Applying Ethnoecology for Resource Management and Sustainable Development in Mountain Region of Yunnan A New Spider of the Genus Pimoa from Gaoligong Mountains, Yunnan, China (Araneae, Araneoidea, Pimoidae) The Diversity of Orchidaceae in Gaoligong Mountains, Yunnan Notes on the genus Arisaema (Araceae) in Gaoligong Mountains A Study on Aroids in Gaoligong Mountains The Plant Germplasm Database and Platform of QinghaiTibet Plateau Jacaranone Derivatives from Senecio laetus (Compositae) Simultaneous Separation and Determination of Fructose, Glucose, Sucrose and Maltose in Maize Seed by UPLC-ELSD Screening and comprehensive evaluation of drought resistance indices of cotton at blossing and boll-forming stages Study on distribution and botany characteristics of Pueraria lobata (Willd) Ohwi in Shanxi Comparative Analysis of the Main Agronomic Characters of Plateau Japonica Rice backbone of Parents and their Derivative Cultivars Studies on Female Flower Development and Embryonic Development of Dioscorea fordii Prain et Burk. in Hainan