Research Progress in Androgenesis and Haploid Breeding of Gramineous Forage and Turfgrass Plants In vitro Haploid Production and Application to Pepper Breeding Androgenesis and Embryogenesis in Isolated Microspore Culture of Capsicum annuum L. Effects of Mannitol Pretreatment on Androgenesis of Barley (Hordeum vulgare L.) Genotypic Effects on Androgenesis and Related RAPD Marker in Barley 八倍体小偃麦与普通小麦杂交后代花药培养的研究 Influence of Exogenous Auxin on Microspore Embryogenesis in Tobacco Androgenesis and Embryogenesis in Isolated Microspore Culture of Capsicum annuum L. In vitro Haploid Production and Application to Pepper Breeding Observation of Androgenesis in Cultured Wheat Anthers at Meiosis, Tetrad, Early Uninucleate and Trinucleate Stage