Observation of the Interspecific Cross Process between Rhododendron ‘Nova Zembla’ and R.excellens Expression and Possible Role of S4(SSM4) Genes in the Styles of Self-incompatible Pear Cultivar and Its Self-compatible Mutant Screening for High-Temperature Tolerant Cotton Cultivars by Testing In Vitro Pollen Germination, Pollen Tube Growth and Boll Retention Studies on Stigma Receptivity and Pollen Viability and Pollen Tube Growth of ‘Chuanzao loquat’ in the First Florescence Characteristics of Pollen Tube Growth and Double Fertilization in Arundinaria simonii f.heterophylla(Bambusoideae) Ultrastructure of Pollen and Observation on Pollen Tube Growth in Cypripedium japonicum Relationship of pear pollen and stigma development with temperature The Observation of Pollination ,Fertilization and Seed Abortion of ‘Century Seedless Pear’ Effects of Calcium and Boron on Pollen Germination and Pollen Tube Growth of Torenia fournieri IMMUNOGOLD ELECTRON MICROSCOPIC OBSERVATIONSON DISTRIBUTION OF SEVERAL PHYTOHORMONES IN POLLEN TUBE GROWTH TRACK THROUGH PISTIL IN TOBACCO Distyly and cryptic heteromorphic self-incompatibility in Mussaenda macrophylla (Rubiaceae) Structure and Development of Stigmatic Branches and Style and Their Relation to Pollen Tube Growth in Wheat Ca Ion Localization in the Path of Pollen Tube Growth Within the Gynoecium of Brassica napus Exogenous Ca2+ Regulation of Pollen Tube Growth and Division of Generative Nucleus in Nicotiana tabacum A Novel Endo-1,4-β-Glucanase Gene (LlpCel1) Is Exclusively Expressed in Pollen and Pollen Tubes of Lilium longiflorum in vitro Pollen Germination and Tube Growth Characteristics in Pecan (Carya illinoinensis) Research on the Difference in the Pollen Tube Growth of a Low Seediness Line of Loquat Structure of Micropyle in Gossypium hirsutum and the Pathway of Pollen Tube Growth Quantitative Measurement ed Pollen Tube Growth and Particle Movement An Image Skeletonization-Based Tool for Pollen Tube Morphology Analysis and Phenotyping Factors Influencing Pollen Germination and Tube Growth of Prunus armeniaca L.in vitro Research Advances in Inositol Phosphate Signaling in Regulating Pollen Development and Pollen Tube Growth The Differences of Pollen Germination and Pollen Tube Growth between Chinese Cherry and Sweet Cherry Pollen Germination and Growth of Epimedium brevicornum Effects of Storage Conditions and Plant Growth Substances on the Activity of Cerasus humilis (Bge.) Sok. Pollen Micro Dynamic Pollination and Fertilization of the Pear Variety Banndainiitaka(Pyrus pyrifolia Nakai cv. Banndainiitaka Characteristics of Pollen Germination and Pollen Tube Growth of Prunus mume in Vitro Effects of Medium Components and pH on Pollen Germination and Tube Growth in Pear (Pyrus pyrifolia) In Vitro Pollen Tube Growth and Distribution of Microfilaments in Pollen Tube of Pinus tabulaeformis The effects of plant growth regulating substances on pollen germination and tube gowth in Fengshui pear (Pyrus serotina) A Study on the Involvement of Nitric Oxide in Inhibiting Pollen Tube Growth of Tea Plant(Camellia sinensis)Under Low-temperature A Study on the Involvement of Nitric Oxide in Inhibiting Pollen Tube Growth of Tea Plant(Camellia sinensis)Under Low-temperature Expression of Styl ar S-Gl ycoprotein in Nicotiana g1 auca and Its Effect on Pollen Tube Growth Effects of Culture Medium Composition and Culture Conditions on Pollen Germination and Pollen Tube Growth of Chimonanthus praecox Prelim inary Report on in V itro Pollen Germ ina tion of B etu la a lnoides