Megasporogenesis,Microsporogenesis and the Development of the Female and Male Gametophyte of Puccinellia tenuiflora PRELIMINARY STUDY ON PHYSIOLOGICAL MECHANISM OF SALINE-ALKALI TOLERANCE OF PUCCINELLIA TENUIFLORA Effects of Salinity on the Contents of Osmotica of Monocotyledenous Halophytes and Their Contribution to Osmotic Adjustment Comparative Studies on the Saline-Alkali Resistant Characters in Puccinellia chinampoensis and Aeluropus littoralis var. sinensis of Alkalization Meadow in Songnen Plain Effects of Ecological Factors on Salt-Tolerance of Duccinellia tenuiflora Seeds During Germination A Comparative Study on the Growth of Salt-treated Pucciinellia tenuiflora at the Seeding and Elongating Stages and its Relations with Irons A Preliminary Study on the Main Plant Communities in the Saline Soils of Song-Nen Plain Difference Between Salt(NaCl)and Alkaline(Na2CO3)Stresses on Puccinellia tenuiflora(Griseb. )Scribn. et Merr. Plants Citric Acid Accumulation in an Alkali-tolerant Plant Puccinellia tenuiflora Under Alkaline Stress Quantitative analysis of prolonged reproductive growth of the tillers of Puccinellia chinampoensis population in alkalized meadow in the Songnen Plains of China Effect of nitrogen accumulation in Puccinellia tenuiflora grassland on the succession of vegetation in Songnen alkaline grassland Studies on the Adaptability and Tolerance of Puccinellia tenuiflora to Salinity in the Salinized Grassland in Songnen Plain THE COMPARISON STUDY ON WATER ECOLOGY OF TWO PUCCINELLIA COMMUNITIES IN SONGNEN GRASSLAND Epicuticular wax of leaf epidermis: a functional structure for salt excretion in a halophyte Puccinellia tenuiflora Cloning and bio-infomatical analysis of the high-affinity K+ transporter gene PutHKT2;1 from the halophyte Puccinellia tenuiflora Construction and Preliminary Analysis of cDNA Library of Puccinellia tenuiflora Roots Grown in Saline-alkaline Land Changes of defensive enzymes and active oxygen of Puccinellia tenuiflora seedlings under Na2CO3 stress CHANGES OF ORGANIC MATTERS, RESPIRATION AND SEVERAL ENZYME ACTIVITIES OF PUCCINELLIA TENUIFLORA SEEDS UNDER ALKALINE SALT STRESS EFFECT OF SODIUM CARBONATE DOMESTICATION PROGRESSIVELY ON ALKALINE RESISTANCE OF SEEDLINGS OF PUCCINELLIA TENUIFLORA Seasonal Dynamics and Distribution of Six Elements Content of the Aboveground Part in Puccinellia tenuiflora Effects of Na2CO3 on Defensive Enzyme Activity of Puccinellia tenuiflora Seeds Effects of the Growth of Puccinellia tenuiflora on the Chemical Properties of Alkali Soil Quantitative characters of vegetative propagation and sexual reproduction of Puccinelliatenuiflora population on alkalized meadow of Songnen Plain Analysis on the Mechanism of Seed Dispersal of Puccinellia chinampoensis on Alkalized Meadow in Songnen Plain of China Cloning and Expression Analysis of PtLIR1 Gene from Puccinellia tenuiflora Under NaCl Stress Cloning and sequence analysis of K+ channel PtAKT1 gene fragment from halophyte (Puccinellia tenuiflora) Study on the Standard Methods of Germination Testing in Puccinellia distans Seeds Study on Grazing Yak Performance and Soil Nutrient Changes in Warm-season Pastures of Alpine Region Cloning of a TPS gene and analysis of its function in stress tolerance in Puccinellia tenuiflora Development of a plant regeneration system via tissue culture in Puccinellia tenuiflora Cloning and expression of PtGAPDH from Puccinellia tenuiflora A Comparative Study on Photosynthetic Abilities of Puccinellia tenuiflora of Different Grown Years PRELIMINARY STUDY ON NITROGENOUS METABOLISM OF GERMINATING PUCCINELLIA TENUIFLORA SEEDS UNDER ALKALINE SALT STRESS CHANGES OF SEVERAL OSMOTICA IN PUCCINELLIA TENUIFLORA SEEDLING UNDER ALKALI SALT STRESS Study on calorific value and energy dynamics of Puccinellia tenuiflora in Songnen grassland NEW TAXA OF PUCCINELLIA PARL. FROM XINJIANG THE RELATIONSHIPS BETWEEN SEASONAL CHANGES OF PHOTOSYNTHESIS AND TRANSPIRATION OF PUCCINELLIA TENUIFLORA AND THE CLIMATE FACTORS Study of Expression Profiles of Puccinellia tenuiflora Genes under NaHCO3 Stress by Means of the cDNA Microarray Further Study of Physiological Mechanism of the Saline-alkali Tolerance of Puccinellia tenuiflora GST Activity and Its Related Indexes in the Chloroplasts of Puccinellia tenuiflora Seedlings under Na2CO3 Stress Relationships among MDA content, plasma membrane permeability and the chlorophyll fluorescence parameters of Puccinellia tenuiflora seedlings under NaCl stress The relationship between light energy utilization and dissipation of PS Ⅱof Puccinellia tenuiflora seedlings and osmotic potential of culture solution under Na2CO3 stress Seasonal dynamics of environmental factors and decomposition rate of litter in Puccinellia tenuiflora community of Songnen grassland of China The content of K and Na in epidermis and mesophyll cells of Puccinellia tenuiflora seedling leaves under Na2CO3 stress Effects of Na2CO3 stress on the ultrastructure of mesophyll cells in Puccinellia tenuiflora THE RELATIONSHIPS BETWEEN DIURNAL CHANGES OF PHOTOSYNTHESIS AND TRANSPIRATION OF PUCCINELLIA TENUIFLORA AND THE CLIMATE FACTORS Influence of Puccinellia tenuiflora on Phosphorus Nutrition of Alkaline Soil Physiological and Molecular Features of Puccinellia tenuiflora Tolerating Salt and Alkaline-Salt Stress Mechanism of the Effect of Salt on Germination of Puccinellia Tenuifolra Quantitative Analysis on Reproduction Characters of Puccinellia Chinampoensis Populatioa in Alkalized Meadow in the Songnen Plain of China Effect of Na2CO3 Stress on Defensive Enzyme System of Puccinellia tenuiflora Seedlings Effects of the Growth of Cultivated Puccinellia tenuiflora on Physical Characteristics of Alkali Soil Seasonal Dynamics of Four Microelements Content in Aboveground Biomass of Puccinellia tenuiflora AMELIORATED EFFECTS OF SOIL SALINITY NUTRIENT UPON PLANTING PUCCINCLLIA TENUIFLORA EFFECT OF SODIUM CARBONATE STRESS ON AMINO ACID CONTENTS OF PUCCINELLIA TENUIFLORA SEEDLINGS SEASONAL CHANGES OF PHOTOSYNTHETIC AND TRANSPIRATION CHARACTERS OF PUCCINELLIA TENUIFLORA A COMPARATIVE STUDY ON PHOTOSYNTHESIS AND TRANSPIRATION DIURNAL VARIATION OF ANEUROLEPIDIUM CHINENSE AND PUCCINELLIA TENUIFLORA