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Studies on individual sexual reproductive process of Juglans mandshurica Effectof IAA on soybean seedling Effect of different factors on transformation of Alhagi pseudalhagi by Agrobacterium rhizogenes Oxidative damage and antioxidant responses during drought-induced winter wheat flag leaf senescence Studies on the fertility of original cross and reciprocal cross between T.aestivum and Ae.tauschii Production and cytologic study of fertility of intergeneric hybrids of T.aestivum with Ae.vavilovii Correlation analysis between induction of maize parthenogenesis haploid in vivo and intersperm nucleus distances in pollen tubes germinating in vitro of male parent Progress in the study of leghemoglobin Study on characteristics of photosynthetic membranes in Yangmai No.5 (T.aestivum L.) flag leaves during photosynthetic functional decline process Characteristics of flag leaf senescence and activated oxygen metabolism for cold type wheat Effect of close-relative single crosses on flowering coordination during seed corn production RFLP analysis of mtDNAs among three types of cytoplasmic male sterility and their F_1 hybrids in wheat Histochemical localization of anthraquinones in rhizome of Rheum officinale Bail HISTOCHEMISTRY ANDCYTOCHEMISTRY OF RESIN-CONTAINING CELL IN PINUS TABULAEFORMIS THE ULTRASTRUCTURAL STUDY OF PROTEIN BODY IN UNGERMINATED AND GERMINATED TOMATO SEED ANATOMICAL STUDIESON THE DEVELOPMENT OFOIL CELLS IN LITSEA PUNGENS THE ULTRASTRUCTURAL OBSERVATION OF WHEAT SALT TOLERANCE CELL LINES OF CALLI CRYOPRESERVATION OFAPRICOT CALLI Genotypic variations for nitrogen use efficiency in winter wheat I.Effects of N uptake and utilization efficiency on grain yields Study on chemical constituents of essential oil from Vitex negundo Linn. Study on predicition method of cone crop in seed orchard of Pinus tabulaeformis Study on diversity of seed plants from Niubeiliang Nature Reserve Discussing issues about establishing vegetation on Loess Plateau according to the law of community Study on introduction and breeding of improved breeds of seabuckthorn in the semiarid loess hilly region Effectsof fertilizer application depth on senescence of flag leafafter anthesis and yield in dry land wheat Effect of alteration of source-sink relationship on endogenous hormones in cotton leaves Cryo-electron microscopy and its application in studies of plant (animal) materials NITROGEN FIXING ROOT NODULES AND ITS FRANKIA ENDOPHYTE OF HIPPOPHAE RHAMNOIDES L. STUDIES ON THE DEVELOPMENT OF THE FLORAL NECTARIES OF NYMPHOIDES PELTATUM (GMEL.) O.KUNTZ STUDY ON CORRELATE SELECTION OF SUPERIOR PAULOWNIA CLONES GENETIC ANALYSES AND INDEX SELECTION OF THE QUANTITATIVE CHARACTERS OF PAULOWNIA CLONES BREEDING AND CYTOGENETIC STUDY OF TRITICUM AESTIVUM-PSATHYROSTACHYS HUASHANICA ALIEN SUBSTITUTION LINES STUDIES ON THE MORPHOLOGY,STRUCTURE AND DEVELOPMENT OF THE GLANDULAR HAIRS IN PERILLA FRUTESCENS (L. ) BRITTON EFFECTS OF THE ENHANCED UV-B RADIATION ON THE MICRONUCLEUS EVENTS OF TRADESCANTIA POLLEN MOTHER CELLS STUDIES ON TISSUE AND RAPID PROPAGATION PTERIDIUM AQUILINUM VAR. LATIUSCULUM STUDIES ON THE TISSUE AND CELL CULTURE OF SOPHORA JAPONICA L. STUDIES ON THE MORPHOLOGICAL CHARACTERS AND PEROXIDE ISOENZYMES OF THE 5 AUSTRALIAN WILD SPECIES OF GOSSYPIUM PROVENANCE TEST OF THE GROWTH OF NITRARIA TANGUTORUM ULTRASTRUCTURAL AND CYTOCHEMICAL LOCALIZATION OF ATPase ACTIVITY STUDIES OF EMBRYONIC CELL DIFFERENTIATION IN LYCIUM BARBARUM L STUDIES ON THE WILD ECONOMIC PLANT RESOURCES AND ITS UTILIZATION IN GANSUHEXI GLYCOSIDES OF HEDERAGENIN FROM DECAISNEA FARGESII PRELIMINARY STUDY OF BIOLOGICAL EFFECTION OF MAIZE SOAKED IN THE MAGNETIZED WATER THE EFFECT OF EXOGENOUS DRUGS ON DAMAGE OF CUCUMBER SEEDLINGS UNDER CHILLING STRESS PREVENTION AND CURE OF PRYMNESIUM PARVUM CARTE FROM POISONG FISH IN THE SALINE-ALKAI PONDS STUCIES ON THE ULTRASTRUCTURE AND MECHANISM OF NECTAR SECRETION IN FLORAL NECTARIES OF BRASSICA CAMPESTRIS LINN. AT DIFFERENT DEVELOPMENTAL STAGES OBSERVATION OF THREE VIRUSES DISEASE OF THE CEREAL BY ELECTRON MICROSCOPE EFFECTS OF SPECIFIC ELECTROMAGNETIC WAVE RADIATION ON THE COMPOSITION OF MEMBRANE LIPID ACIDSIN THE LEAVES OF WHEAT SEEDLINGS INVOLVEMENT OF CALCIUM AND CALMODULIN IN THE REGULATION OF DEOUGHT RESISTANCE IN ZEA MAYS SEEDLINGS STUDIES ON THE MORPHOLOGY AND THE ULTRASTRUCTURE OF THEMATURE FLORAL NECTARY OF NYMPHOIDES PELTATUM (GMEL) O. KUNTZ DURING THE NECTAR SECRETARY PERIOD STUDIES ON SOMATIC EMBRYOGENESIS FROM CELL SUSPENSIONCULTURE OF LOBLOLLY PINE THE RESEARCH PRESENCE AND DEVELOPMENT PROSPECTOF ORYCHOPHRAGMUS VIOLACEUS THE RELATIONSHIP BETWEEN SENESCENCE AND MEMBRANE LIPID PEROXIDATION IN CUT TULIPS DURING VASE-HOLDING LIFE THE STUDY ON CELL LIPID OVER-OXIDATION INJURIES AND CHANGES OF PLASMALEMMA ULTRASTRUCTURE IN TYPICAL SALINE PLANTS INTRODUCTION AND DOMESTICATION OF IRIS CARYOPHYLLACEAE IN LOESS PLATEAU FROM CHINA RELATIONSHIP BETWEEN ULTRASTRUCTURE OF WHEAT MESOPHYLL CELL UNDER WATER STRESS AND DROUGHT-RESISTANCE THE TRANSFER OF SEGMENT OF CHROMOSOME FROM BLUE-GRAINED WHEAT TO STERILE TAIGU WHEAT 杜仲胚胎学的研究——Ⅱ.雄配子体的发育 A STUDY ON POLYSACCHARIDE OF THE LETHARIELLA CLADONIOIDES THE RELATIONSHIP OF THE BARK FORMATION WITH SEASONAL CHANGES IN POPULUS DAKANENSIS SEED COAT AND HILUM DEVELOPMENT IN VIGNA SESQUIPEDALIS FRUWIRTH THE VEGETATION OF DA QAIDAM BASIN IN QINGHAI PROVINCE APPROACH TO GROWTH AND PHYSIOLOGICAL CHARACTERS IN OCTAPLOID PANICUM MILIACEUM L. LEAFLET ORIENTATION IN WATER-STRESSED SOYBEANS LOCALIZATION OF ACID PHOSPHATASE ACTIVITY DURING DEVELOPMENT OF MEGAGAMETOPHYTE IN WHEAT STUDIES ON MORPHOGENESIS OF ANTHERS IN STRAWBERRY IN VITRO STUDY ON HITOLOGY AND CYTOLOGY OF VICIA SATIVA ROOT NODULES THE CHANGES OF NUCLEIC ACIDS AND SOLUBLE PROTEIN DURING SOMATIC EMBRYOGENESIS IN WHEAT EFFECT OF KINETIN ON TUBER ONION LEAF SENESCENCE AND RELATIONSHIP BETWEEN THE EFFECT AND ACTIVATED OXYGEN METERBOLIZM STUDIES ON RELATIONSHIPS AMONG THE GENERA AND PHYLOGENESIS OF THE TRIBE TRITICEAE PROMOTIVE EFFECT OF L-PROLINE ON THE GROWTH OF WHEAT CALLUS MORPHOGENESIS AND DEVELOPMENT OF CHLOROPLASTS IN ANTHERS OF HORDEUM VULGARE RESEARCH ON HOT, DROUGHT RESISTANCE AND CULTIVATION TECHNIQUE OF VIBURNUM PLICATUM F. TOMENTOSUM AND LINDERA MEGAPHYLLA COMPARATIVE STUDY ON RESPONSES TO NITROGEN NUTRIENT OF DIFFERENT DROUGHT RESISTANCE TYPES OF WHEAT UNDER WATER STRESSES EFFECTS OF MINERAL NUTRITION ON DRY MATTER PRODUCTION AND WATER USE OF SPRINC WHEAT UNDER DIFFERENT SOIL MOISTURE CONDITIONS CLASSIFICATION EVALUATION AND BENIFICIAL ANALYSIS OF LOESS PLATEAU GRASSLAND CAT CYTOLOGICAL OBSERVATION ON CALLUS PRODUCTION AND EMBRYOGENESIS OF Gossypium hirsutum L. THE EFFECT OF 4D AND 4R ON THE SYNTHESIS OF THREE KINDS OF ISOZYMES IN WHEAT 中国特有植物海南草珊瑚管状分子的初步研究—草珊瑚属导管存在的例证 DIIVERGENCE OF Ri T-DNA TRANSFORMATS OF CABBAGE