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Variation analysis on the grain yield and main agronomic traits of spring wheat in rainfed regions of China. Effects of combined application of nitrogen and phosphorus on diurnal variation of photosynthesis at grain-filling stage and grain yield of super high-yielding wheat. The diurnal trends of sensible and latent heat fluxes of a subtropical evergreen coniferous plantation subjected to seasonal drought Spatiotemporal variation of plant community aspections in the north-subtropical zone of eastern China Phenotypic Difference among Species and a Variation Type of Azadirachta Variation of Soil Bulk Density on Slopes in the Rocky Mountainous Areas of Loess Plateau, Northwest China: A Case Study of Xiangshuihe Small Watershed in Liupan Mountains Excellent Provenance Selection of Parakmeria latungensis by Analytic Hierarchy Process Variation of organic pollution in the last twenty years in the Qinzhou bay and its potential ecological impacts The effects of season and environmental factors on community structure of planktonic copepods in Zhanjiang Bay, China The dynamic diurnal simulation of gas exchange in apple leaves DISTANT MOLECULAR HYBRID DERIVED FROM SOYBEAN AND WHEAT WITH ION IMPLANTATION AND VARIATION ANALYSIS SOMACLONAL VARIATION OF REGENERATED PLANTS OF PERENNIAL RYEGRASS NEW TYPES OF MUTATION IN WHEAT BREEDING BY BIO-MOLECULAR INDUCTION Mutagenic Effect Comparison of Different Spacecrafts on Aboarded Indica Rice Seeds Family variation of Pinus massoniana in phosphorus efficiency and retrospective analysis between seedling growth and field trails Appropriate Sample Unit Size of Adaptive Clustering Sampling for Rare and Clustering Vegetation Variation Characteristics of Respiration Efflux of Soil Components in Betula platyphylla Plantation Growth Variation and Selection to the Progeny of Nucleus Breeding Population of Pinus taeda The Factors Influencing Stem Diameter Micro-Variation in Chinese Pear Jujube (Ziziphus jujuba) VERIATIONS ON SEVERAL CHARACTERISTICS OF FOUR RATTAN CANE SPECIES Sex ratio and spatial pattern in Populus davidiana in Changbai Mountain Photosynthetic diurnal variation characteristics of leaf and non-leaf organs in winter wheat under different irrigation regimes EFFECT OF SPACE FLIGHT ON MEIOSIS OF POLLEN MOTHER CELLS AND ITS DERIVED POLLENS IN Impations balsamina BIOLOGICAL EFFECTS INDUCED BY THE INNER-TARGET REACTION OF ACCELERATED~7LI~(+3) IONS WITH WHEAT EMBRYO AN ELITE RESTORER MUTANT R3027 INDUCED BY THE INTEGRAL APPLICATION OF γ-RAYS IRRADIATION AND SOMACLONAL VARIATION TECHNIQUES RAPD AS AN AID TO EVALUATE SOMACLONAL VARIATION OF APPLE STUDY ON CHARACTER VARIATION INDUCED BY INTRODUCING EXOGENOUS DNA INTO UPLAND COTTON WITH ION IMPLANTATION INDUCTION OF GENETIC VARIATION OF OIL COMPOSITION IN SOYBEAN BY EMS STUDY ON MUTAGENESIS OF IMMATURE EMBRYO CALLUS TREATED WITH Y RAYS IN WHEAT HERITABLE SOMACLONAL VARIATION IN GLIADIN PROTEINS OF WHEAT THE RELATIONS BETWEEN VARIATION FREQUENCY OF M_2 AND CHARACTERISTICS OF M_1 IN RICE PLANT REGENERATION FROM GROWING TIPS CULTURES OF WHEATS AND ITS VARIATION Spatial-temporal variation of soil available P and K in Taihu Lake region of Jiangsu province，China 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 Spatial Distribution of Tree Species and Environmental Interpretations of Secondary Forest in Changbai Mountains Variation of Mature Phenotype and Anlage Differentiation of Floret for Tetraploid Robinia pseudoacacia Variation of Fruiting Quantity and Nut and Seed Characters of Alnus cremastogyne Clones Genetic Variation on Rooting Ability of Stem Cutting and Juvenile Growth of Larix kaempferi×L. olgensis Interspecific Hybrids Genetic Variation of Paulownia‘s Natural Stem-Join Characters Seasonal and Spatial Variations of Leaf Area Index of Sub-Alpine Dark Coniferous Forest during Growing Season in Western Sichuan Microfibril Angles and Fiber Morphology Characteristics of Baldcypress Wood Diurnal and Seasonal Variation of CO₂ Flux Above the Korean Pine and Broad-Leaved Mixed Forest in Changbai Mountain 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 Geographical Variation of Morphologic Characteristics of Gleditsia sinensis Seeds and Legumes in the North Region Anatomical Characteristics of Three Commercial Rattan Canes in South China Variation in Wood Properties of Different Provenances of Exotic Loblolly Pine for Pulpwood Variations of Air PM10 Concentration in Different Greenlands in Tsinghua University Analysis on Geographical Variation of Fruit oil Content of Pistacia chinensis Diurnal Variation of Airborne Particulate Matter in 3 Typical Recreation Forests in West Mountain of Beijing Area in Spring Diurnal Variation of Concentrations of Polycyclic Aromatic Hydrocarbons (PAHs) in the leaves of Cinnamomum camphora Quantitative Characteristics of Xylem Cells and Variation in Vessel Element Length and Fibre Length for 13 Psammophytes In vitro Selection of New Pepper Germplasm Resistant to Fusarium Wilt Chromosome Number Variation of Cells in Reiterative Subcultures of Embryonic Callus of Tapiscia sinensis Oliv. Phenotypic Variations of Exsiccate-specimen of Malus baccata (L.) Borkh. Diurnal Variation of Eco-physiological and Photosynthetic Characteristics of Reynoutria japonica Topographic Variation of Vegetation Types in Xiaohegou Nature Reserve of Sichuan Province Photosynthetic and Transpiration Characteristics and Their Affecting Factors of Ephemeral Plant in the Desert Area of the Junggar Basin Study on Morphological Variation of Different Populations of Caragana korshinskii Studies of the Variation of Fruiting-cyme Characters of Nitraria tangutorum Plus Tree 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