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Genetic Variation and Provenance Selection of Chinese Tuliptree ELISA Detection of Infectious Pathogenic Viruses and Variation of CMV from Squash in Chongqing ELISA Detection of Infectious Pathogenic Viruses and Variation of CMV from Squash in Chongqing Analysis for Components and Contents of Sugars and Organic Acids in Blueberry Fruits VERIATIONS ON SEVERAL CHARACTERISTICS OF FOUR RATTAN CANE SPECIES GEOGRAPHIC VARIATION IN COMPONENTS OF MONOTERPENE AND SESQUITERPENE IN PINUS ARMANDI TREND SURFACE ANALYSIS ON DBH DATA OF CHINESE FIR PROVENANCES PRELIMINARY STUDIES ON RADIAL VARIATION PATTERNS OF WOOD PROPERTIES WITHIN TREES-Ⅲ.STUDIES ON THE EFFECT OF TREE SPACING ON THE RADIAL VARIATION PATTERNS OF WOOD DENSITY IN SLASH PINE AND LOBLOLLY PINE STUDY ON INHERITANCE AND VARIATION OF WOOD BASIC DENSITY OF POPULUS TOMENTOSA Carr. CLONES GENETIC ANALYSIS AND COMBINED SELECTION OF MAIN ECONOMIC CHARACTERS OF HALF-SIB FAMILIES FOR SLASH PINE GEOGRAPHIC GENETIC VARIATION AND PROVENANCE SELECTION OF LIRIODENDRON CHINENSE STUDY ON ONE OF GENETIC VARIATIONS FOR GINKGO BILOBA IN CHINA THE VARIATION OF BREEDING FRUIT-STONE CHARACTERS AMONG AND WITHIN POPULATION VARIATION WITHIN TREE OF WOOD ANATOMICAL PROPERTIES AND BASIC DENSITY OF I-214 POPLAR IN BEIJING AREA AND THEIR RELATIONSHIP MODELLING EQUATIONS Comparison of concentrations of non-structural carbohydrates between new twigs and old branches for 12 temperate species Effect of rainfall on the seasonal variation of soil respiration in Hulunber Meadow Steppe Spatiotemporal variation of interacting relationships among multiple provisioning and regulating services of Tibet grassland ecosystem Temporal-spatial characteristics of soil respiration in Chinese boreal forest ecosystem Diurnal variations of the greenhouse gases emission and their optimal observation duration under different tillage systems Spatial and temporal variations of total nitrogen density in agricultural soils of the Songnen Plain Maize Belt Genetic Variation and Individual Plant Selection of Main Economic Traits ofProgenies from the Second-generation Seed Orchards of Chinese Fir The Diurnal Variation and Influence Factors of VOC of Platycladus orientalis in Spring Identification and Genetic Variation Analysis of Armeniaca cathayana Hybrids Study on Nut Characteristics Variation and Superior Tree Selection of Carya illinoensis Superior Clone Selection of Casuarina equisetifolia D iurna l Change of Photosynthetic Character istics and Response to L ightIntensity of P inus kesiya Royle ex Gordon var. langbianensis Genetic Variation in Growth, Wood Density and Bark Thickness of\n Eucalyptus dunnii A Compara tive Study on Nut Character istics of Pecan Phenotypic Var ia tion of Geographic Provenance in Tsuga dum osa Study on Shoot Nutrition of Qiongzhuea tum idinoda: A Rare andProtected Bamboo Species Genetic variation of HMW-GS among gansu wheat varieties Studies on the isozymes of transformaed calli of Linum usitatissimun,Onobrychis viciaefolia Scop.and Alhagi pseudalhagi obtained by Agrobacterium tumefaciens mediated chitinase gene transformation Study on the photosynthetic physiological characteristics of Panicum virgatum in Loess Hilly-gully Region Studies on differentiationpotential and chromosome stability of embryogenic callus in subcultures of Picea meyeriRehd.et Wils. STUDY ON GEOGRAPHICAL VARIATION OF PHENOLOGY OF CHINESE FIR AND ITS CORRELATION TO PRODUCTIVITY IN CHINA VARIATIONS OF WOOD PROPERTIES AND CHARACTERISTICS AND A TENTATIVE SELECTION FOR STRUCTURAL TIMBERS OF CUNNINGHAMIA LANCEOLATA PROVENANCES A STUDY ON GREGRAPHIC DISTRIBUTION AND POPULATION VARIATION LAW OF LARIX PRINCIPIS-RUPPRECHTII MAYR NATURAL FOREST IN SHANXI Study on the Relationship between Species Variation and Productivity of Different Degraded Plant Communities on Leymus chinensis A Primary Study on CO₂ Emission from Alpine Potentilla fruticosa Scrub Meadow Ecosystem Atomosphere CO₂ Concentration and Its Variation Characters Above Inner Mongolia Grassland In Grass Growing Season A Preliminary study on Chromosome Number Variation of Cynodon dactylon Genotypic Variation of Stylosanthes guianensis in P Efficiency on an Acid Soil of Red Earth Region The Genetic Variation in Rambler Alfalfa Analysis of Causes of Midday Depression of Photosynthesis in Soybean Leaves Study on the Effect of in Vitro Mutagenesis of Somatic Tissue of Wheat Effect of Crossing Pattern on the Genetic Variation of the Progenies and the Yield of Selected Lines in Soybean Somaclone Variation in Hybrids of Triticum aestivum×Agropyron in termedium Spatial-temporal Variations of Net Primary Productivity of Qilian Mountains Vegetation Based on CASA Model Cloning and Sequence Analysis of AP3-3 Gene in Normal Plant and Natural Variant from Anemone rivularis var.flore-minore ANALYSIS ON TAXONOMIC CHARACTERS OF LARIX IN NORTHEAST OF CHINA Ⅱ——GEOGRAPHIC VARIATION OF SEED SCALES AND NEEDLE LEAVES A PRELIMINART STUDY ON GENETIC VARIATION AND ENDANGERED MECHANISM OF RHODIOLA SACHALINENSIS NATURAL POPULATION EFFECTS OF LIGHT INTENSITY AND ILLUMINATION TIME ON LEAF COLOUR VARIATIONS OF COLOURED LEAF TREES 不同小麦品种(系)吸收利用氮素效率的差异及有关机理研究Ⅱ.影响吸收效率的因素分析 THE STUDY ON THE GROWTH VARIABILITY OF DIFFERENT FREE-POLLINATED FAMILIES OF NITRARIA TANGUTORUM ESTABLISHMENT AND VARIATION OF IRIS SOMACLONES GENETIC VARIATION OF CHEMICAL CONSTITUENT IN GINKGO BILOBA LEAVES VARIATION OF GROWTH RING WIDTH AND WOOD BASIC DENSITY OF RUBBERTREE AND THEIR MODELLING EQUATIONS A TRENDFACE ANALYSIS OF GEOGRAPHICAL VARIATIONS IN NEW BAMBOO GROWTH OF PHYLLOSTACHYS HETEROCYCLA CV. PUBESCENS FROM DIFFERENT PROVENANCES VARIATION OF WOOD PROPERTIES WITHIN AND BETWEEN CAMPHOR TREE PLANTATION AND THEIR PREDICTING MODELS THE ESTABLISHMENT AND PREDICTION OF THE DYNAMIC VARIATION MODEL OF WOOD GROWTH RING DENSITY FOR THE PLANTATION FOREST OF PINUS KORAIENSIS PRELIMINARY STUDIES ON THE RADIAL VARIATION PATTERNS OF WOOD PROPERTIES WITHIN TREES V I STUDIES ON THE RADIAL VARIATION PATTERNS OF WOOD DENSITY IN 19 CHINESE FIR PROVENANCES A COMPARISON STUDY BETWEEN OPEN POLLINATION SEED PROGENY TEST AND CLONAL TEST OF ROBINIA PSEUDOACACIA APPLICATION OF RAPD MARKER TO GENETIC VARIATION OF CHINESE FIR PROVENANCES VARIATION OF WOOD PROPERTIES WITHIN TREES OF CHINESE FIR II．VARIATION OF TRACHEID MORPHOLOGY STUDY ON VARIATION IN BAMBOO WOOD PROPERTIES OF PHYLLOSYACHYS HETEROCYCLA VAR．PUBESCENS VARIATlON OF MECHANlCAL PROPERTIES AND WOOD DENSITY WITHIN TREES OF CHINESE-FIR VARIATION POTENTIAL TRANSMISSlON IN WILLOW PLANTLET A PRIMARY STUDY ON THE RADIAL VARIATION PATTERNS OF WOOD PROPERTIES WITHIN TREES V.THE RADIAL VARIATION PATTERNS AND ITS VARIATION OF WOOD FIBRE LENGTH OF 15 CLONES OF POPULUS×EURAMERICHANA PRELIMINARY STUDIES ON RADIAL VARIATION PATTERNS OF WOOD PROPERTIES WITHIN TREES Ⅰ. ON THE SYSTEMATIC STUDIES OF THE RADIAL VARIATION PATTERNS OF WOOD PROPERTIES WITHIN TREES STUDY ON VARIATION OF WOOD DENSITY IN SLASH PINE AND LOBOLLY PINE AND SELECTION OF THEIR ELITE TREES STARCH VARIATION DURING THE EMBRYONIC SELECTION AND EMBRYO ABORTION IN CUNNINGHAMIA LANCEOLATA PRELIMINARY STUDY ON WOOD PROPERTIES VARIATION OF LOBLOLLY PINE STUDY ON NUTRIENT CHARACTERlSTlCS OF THE FOREST TREE IN A LOBLOLLY PINE PLANTATl0N A New Plum Cultivar‘Bashan Cuili’ Genetic Variation and Superior Family Selection of Castanopsis hystrix Families EFFECT OF ~(60)Co γ IRRADIATION AND GA_3 TREATMENT ON MUTATION OF Carica papaya L. BREEDING WHEAT MUTANT LONGFU 03D51 WITH RESISTING STEM RUST AND GENETIC ANALYZATION OF RESISTING DISEASE AND RAPD MAKER Meiosis and ISSR Analysis on Genetic Veriation of 60Co γ-Rays Irradiated Veriants of Cut Chrysanthemum SSRMARKERANALYSISONGENETICVARIATIONOFM₃FROMMAIZE INBREDLINES48-2ANDR08AFTERIRRADIATIONINDUCEMENT COMPARISON STUDY OF GENETIC DIVERSITY BETWEEN RICE VARIETIES FROM NORTHEAST CHINA AND JAPAN Carbon density of the Chinese fir plantation ecosystem at Huitong, Hu′nan Province