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Effect of periodic defoliation on clonal growth in Axonopus compressus A study on the impact of nitrogen application and harvest time on theseed yield of Tibetan wild Elymus nutans in Lhasa valley, Tibet A study on changes of amino acid profiles after 6 or 16 h rumen degradation of 2 legumes at different maturities Genetic analysis of green period of Zoysia A study on soil biological properties of artificial grassland over different cultivation times in Bayanbulak Studies on Morphological Diferentiation of Floral Buds in Chinese Cabbage Studies on Morphological Diferentiation of Floral Buds in Chinese Cabbage Effect of Different Light Supplement Time and Method on Bulbing Enlargement and Nutritional Quality of Greenhouse-grown Garlic Study on Stimulation Model of Growth Condition of Cymbidium hybridum Vegetative Growth Period Based on Production of Thermal Effectiveness and PAR Identification of Photothermal Responses in Soybean by Integrating Photoperiod Treatments with Planting-Date Experiments Effects of Growth-Period Type and Nitrogen Application Level on the RVA Profile Characteristics for Japonica Rice Genotypes Cytological Observation of Anther Development of Photoperiod/Thermo- sensitive Male Sterile Line Huiyou50S in Brassica napus Effects of Low Temperature Stress during Flowering Stage on Flowering and Seed Setting of Rice in Panxi Region, Sichuan Province Effect of PASP-KT-NAA on Leaf Senescence and Grain Filling Rate during the Grain-Filling Period in Different Temperature Zones Effect of Symbiosis Periods and Plant Densities on Growth and Yield of Rapeseed Intercropping Cotton Importance of Epistasis as the Genetic Basis of Sterility Instability for Photoperiod-sensitive Genic Male Sterile Rice Tagging of a Photoperiod-Sensitive Genic Male Sterile Gene in Nongken 58S via Molecular Markers Discussion on the Function and Specificity of the 60 kD Leaf Protein in Hubei Photoperiod-Sensitive Genic Male-Sterile Rice Nongken 58S Analysis on three kinds of oxidoreductase isozymes in ginseng root at different growth periods Effects of light on maca callus growth, shoot induction and its survival rate Research on life history and phenological period of wild-stimulated cultivated Gastrodia elata f. elata in Guizhou STUDY ON THE REPRODUCTIVE BIOLOGY OF HEMIAULUS SINENSIS GREVILLE: Ⅰ. CELL DIVISION AND ENVIRONMENTAL FACTORS Crop cover factor estimating for soil loss prediction Photosynthetic Characteristics of Super High Yield Wheat cultivars at Late Growth Period Cloning and Expression Analysis of Maize LFY-like Gene Preliminary Studies on Heredity of Fertility for Low Temperature Induced Genic Male Sterile Line and Photoperiod (thermo)-Sensitive Genic Male Sterile Line in Rice (Oryza sativa L.) Breeding strategy of male sterile maize line with thermo-photoperiod sensitivity Eco-Economic Threshold Period for Controlling Weeds in Summer Maize Field of Huang-Huai-Hai Region Eco-economic Period Threshold for Controlling Weeds in Summer Soybeans in Beijing Region The Effect of Urbanization on Growth and Development of Plants Effect of climate change on cotton growth period and yield in Kashgar City, Xinjiang Uygur Autonomous Region Influence of climate change on potential productivity of naked barley in the Tibetan Plateau in the past 50 years Sensitivity of response of winter wheat to climate change in the North China Plain in the last three decades Effect of photoperiod on growth and development of two color morphs of pea aphid (Acyrthosiphon pisum) Allelopathic effect of potato on Orabanche aegyptiaca Pers. seed germination Critical period of weed control in no-tillage summer maize fields Effects of sowing date on tobacco yield and quality Foliar nutrition diagnose of red Fuji apple during different periodsin the Weibei Dry Highland of Shaanxi Province Analysis of climate resource changes during maize growth period inNingxia under SRES A1B scenario Responses of marine microalgae Tetraselmis tetrathele to the changes of photoperiods Advances in plant ecotype classification Effects of Nitrogen Level on Physiological Characters and Yield of Cucumber under Suboptimal Temperature and Light Intensity RELATIONSHIP BETWEEN SOLANlNE AND TUBERlZATlON OF POTATO PLANTS Observation on the microspore abortion of photoperiod- sensitive male sterilemiliet (Setaria italica) 683 ANALYSIS OF VIBRATION CHARACTER0sTICS OF BAND-SAW WOTH LEVER-WEIGHT STRAIN SYSTEM DURING NO-LOAD Irrigation of Carex leucochlora during Flowering and Fruiting Period under Different Soil Water Potentials Study of Dynamic Accumulation of Nutrient Substances in Ceratocephalus testiculatus and Its Spatial-temporal Distribution Pattern Effects of Latitude,Longitude and Altitude on Angelica Growth and Early Bolting in Medicine Formation Period Identification and Genetic Analysis of Photoperiod Insensitive Materials in Kenaf (Hibiscus cannabinus) Research Progresses on Photoperiodic Flowering and Maturity Genes in Soybean (Glycine max Merr.) Synthesis and immunogenicity indentification of artificial antigen of ginsenoside Rg₁ Analysis on rhynchophylline in Uncaria macrophylla from different habitats in Guangxi at various periods Effects of Cymbopogon goeringii (Steud.) A. Camus Volatile Oil on Physiologic Properties of lsolated Guinea Pig Myocardium 研究了人参不同生育期。年龄及主要器官中氨基酸的变化规律,经检测含有十七种氨基酸。总氨基酸含量以萌芽期(4月)最高,其次为枯萎期(9月),花果期(6月)最低;参根部位含量以主根高于须根,侧根最低;各参龄间以五年生较高。 Geographical Variation of Photoperiodic Response in the Pine Caterpillar Limitations of the Method of Effective Accumulation Temperature in Predicting the Generations of the Pine Caterpillars (Dendrolimus spp.) Effect of Photoperiods on Larval Growth and Development of Dendrolimus punctatus Study on the Adaptation of Milu Herd to the Photoperiod at Dafeng Reserve FACTORS TO AFFECT THE VOLTINISM OF THE PINE CATERPILLAR DENDROLIMUS TABULAEFORMIS IN BEIJING AREA Characteristics of Soil Respiration in Quercus aliena var. acuteserrata Forest and Its Clear-Cutting Site in Dormant Period Analysis and Assessment on Protection Period of Sand-Fixation Plantations in Huangyangtan Expression Levels of PHYA and PHYB mRNA in Different Fall Dormancy Alfalfa Varieties Comparison of Photoperiodic Effects of Panicle Development After Panicle Initiation Between Late Japonica and Early Indica Photoperiod sensitive Genic Malesterile Rice (PGMR) Lines Relationship Between the Rice Heading Sensitivity and the Male-Sterile Sensitivity to Photoperiod in View of Developmental Genetics Analysis of N-Terminal Sequence of a 41 kD Protein from a Photoperiod-Sensitive Genic Male-Sterile Mutant of Rice Effects of Photoperiod on Supramolecular Architecture of Thylakoid Membranes from a Rice Mutant (Oryza sativa Nongken 58S) lndex 0f reasonable sunshine-hour and temperature and its effect on growth period and output of Safflower lnquirement to adjusting and controlling index of flowering period of the comlnon calla Effect of different amounts of nitrogen and phosphorus fertilizers applied on soil microbial biomass during corn growth periods Effects of growing process and climatic conditions on grain quality of spring-sown wheat Comparative studies on individual growth and development of three Brachionus angularis strains Thermo-sensitive period and critical temperature of fertility transition of thermo-photo-sensitive genic male sterile wheat Effect of light on the growth and stem flowering rate of mat rush Impact of Zoophthora anhuiensis (Entomphthoraceae) on the fecundity of Myzus persicae apterae during the latent period of its infecti on Different photoperiodic responses in two geographic populations of a subtropical cockroach, Periplaneta japanna Asahina Morphological Key Period Study on Floral Sex Differentiation in Pollination-constant and Non-astringent Persimmon‘Zenjimaru’ Morphological Key Period Study on Floral Sex Differentiation in Pollination-constant and Non-astringent Persimmon‘Zenjimaru’ Determination of the Critical Period of Floral Induction for Hybrid Plants Between Lilium × formolongi and Oriental Hybrid Lily Determination of the Critical Period of Floral Induction for Hybrid Plants Between Lilium × formolongi and Oriental Hybrid Lily Function Analysis of Carrot SOC1 Homologues Responding to Photoperiod