InhaltsangabePreface to the Series. Preface. List of Contributors. 1: Production and Biological Nitrogen Fixation of Tropical Legumes; D. Werner 1. Introduction 2. Phaseolus sp. and Vigna sp. (Beans) 3. Arachis hypogaea (Groundnut, Peanut) 4. Cicer arietinum (Chickpea) 5. Cajanus cajan (Pigeon pea) 6. Mucuna pruriens (Velvet bean) and Other Legumes Acknowledgements References 2: Nitrogen Fixation by Soybean in North America; S. G. Pueppke 1. Soybean: Pathways to North America and Establishment as a Crop 2. Soybean Production in North America 3. Major Soybean Cropping Systems 4. Biological Nitrogen Fixation by Soybean in North America 5. Perspectives Acknowledgements References 3: The Importance of Nitrogen Fixation to Soybean Cropping in South America; M. Hungria, J. C. Franchini, R. J. Campo and P. H. Graham 1. Introduction 2. Taxonomy, Origins, and Importance of Soybean 3. Biological Nitrogen Fixation 4. Economic Importance of Biological Nitrogen Fixation (BNF) in South America 5. Crop Management in South America 6. Final Considerations Acknowledgement References 4: Production, Regional Distribution of Cultivars, and Agricultural Aspects of Soybean in India; S. K. Mahna 1. Introduction and Historical Background 2. AllIndia Area Coverage, Productivity, and Production of Soybean between 1970 2003 3. AllIndia Statewise Area Coverage, Productivity, and Production of Soybean 4. Regional Distribution of Soybean Cultivars 5. Regional Agricultural Aspects of Soybean Cultivation Acknowledgements References 5: Soybean Cultivation and BNF in China; J. E. Ruiz Sainz, J. C. Zhou, D.-N. Rodriguez-Navarro, J. M. Vinardell and J. E. Thomas-Oates 1. Summary 2. Soybean Cultivation in China: Historical Aspects and Current Situation 3. NitrogenFixing Bacteria that Nodulate Soybean 4. The Soybean Germplasm Collection in China 5. Soybean in Crop Rotation and in Continuous Culture 6. Conclusions Acknowledgement References 6: Soil Stress Factors Influencing Symbiotic Nitrogen Fixation; M. J. Sadowsky 1. Introduction 2. Importance of Symbiotic Nitrogen Fixation 3. Symbiotic Interaction of Legumes with Rhizobia 4. Nodulation and Nitrogen-Fixation Genetics in the Rhizobia and Bradyrhizobia 5. Rhizobia in the Soil Environment 6. Stress Factors in the Soil Environment that Influence N2 Fixation 7. Concluding Remarks References 7: Nodulated Legume Trees; J. I. Sprent 1. Introduction 2. Leguminosae 3. Rhizobia that Nodulate Legume Trees 4. Types of Nodules formed on Trees 5. Mycorrhizas and Other Nutrient-Acquisition Systems 6. Measurement of Nitrogen Fixation by Trees 7. Role of Legume Trees in Natural and Managed Systems References 8. Nitrogen Fixing Trees with Actinorhiza in Forestry and Agroforestry; R. O. Russo 1. Introduction 2. General Characteristics of the Actinorhizal Symbiosis 3. Host Botanical Families 4. Nitrogen Fixation in Actinorhizal Trees 5. Mycorrhizal Associations with Actinorhizal Trees 6. Actinorhizal Trees in Agroforestry 7. The Genus Casaurina 8. The Experience of the Central America Fuelwood Project 9. The Case of Alnus acuminata in Tropical Highlands 10. Other Uses of Actinorhizal Trees 11. Concluding Considerations References 9: Molecular Ecology of N2-fixing Microbes Associated with Gramineous Plants: Hidden Activities of Unknown Bacteria; T. Hurek and B. Reinhold-Hurek

Preface to the Series. Preface. List of Contributors. 1: Production and Biological Nitrogen Fixation of Tropical Legumes; D. Werner 1. Introduction 2. Phaseolus sp. and Vigna sp. (Beans) 3. Arachis hypogaea (Groundnut, Peanut) 4. Cicer arietinum (Chickpea) 5. Cajanus cajan (Pigeon pea) 6. Mucuna pruriens (Velvet bean) and Other Legumes Acknowledgements References 2: Nitrogen Fixation by Soybean in North America; S. G. Pueppke 1. Soybean: Pathways to North America and Establishment as a Crop 2. Soybean Production in North America 3. Major Soybean Cropping Systems 4. Biological Nitrogen Fixation by Soybean in North America 5. Perspectives Acknowledgements References 3: The Importance of Nitrogen Fixation to Soybean Cropping in South America; M. Hungria, J. C. Franchini, R. J. Campo and P. H. Graham 1. Introduction 2. Taxonomy, Origins, and Importance of Soybean 3. Biological Nitrogen Fixation 4. Economic Importance of Biological Nitrogen Fixation (BNF) in South America 5. Crop Management in South America 6. Final Considerations Acknowledgement References 4: Production, Regional Distribution of Cultivars, and Agricultural Aspects of Soybean in India; S. K. Mahna 1. Introduction and Historical Background 2. All-India Area Coverage, Productivity, and Production of Soybean between 1970- 2003 3. All-India State-wise Area Coverage, Productivity, and Production of Soybean 4. Regional Distribution of Soybean Cultivars 5. Regional Agricultural Aspects of Soybean Cultivation Acknowledgements References 5: Soybean Cultivation and BNF in China; J. E. Ruiz Sainz, J. C. Zhou, D.-N. Rodriguez-Navarro, J. M. Vinardell and J. E. Thomas-Oates 1. Summary 2. Soybean Cultivation in China: Historical Aspects and Current Situation 3. Nitrogen-Fixing Bacteria that Nodulate Soybean 4. The Soybean Germplasm Collection in China 5. Soybean in Crop Rotation and in Continuous Culture 6. Conclusions Acknowledgement References 6: Soil Stress Factors Influencing Symbiotic Nitrogen Fixation; M. J. Sadowsky 1. Introduction 2. Importance of Symbiotic Nitrogen Fixation 3. Symbiotic Interaction of Legumes with Rhizobia 4. Nodulation and Nitrogen-Fixation Genetics in the Rhizobia and Bradyrhizobia 5. Rhizobia in the Soil Environment 6. Stress Factors in the Soil Environment that Influence N2 Fixation 7. Concluding Remarks References 7: Nodulated Legume Trees; J. I. Sprent 1. Introduction 2. Leguminosae 3. Rhizobia that Nodulate Legume Trees 4. Types of Nodules formed on Trees 5. Mycorrhizas and Other Nutrient-Acquisition Systems 6. Measurement of Nitrogen Fixation by Trees 7. Role of Legume Trees in Natural and Managed Systems References 8. Nitrogen Fixing Trees with Actinorhiza in Forestry and Agroforestry; R. O. Russo 1. Introduction 2. General Characteristics of the Actinorhizal Symbiosis 3. Host Botanical Families 4. Nitrogen Fixation in Actinorhizal Trees 5. Mycorrhizal Associations with Actinorhizal Trees 6. Actinorhizal Trees in Agroforestry 7. The Genus Casaurina 8. The Experience of the Central America Fuelwood Project 9. The Case of Alnus acuminata in Tropical Highlands 10. Other Uses of Actinorhizal Trees 11. Concluding Considerations References 9: Molecular Ecology of N2-fixing Microbes Associated with Gramineous Plants: Hidden Activities of Unknown Bacteria; T. Hurek and B. Reinhold-Hurek 1. Introduction 2. The Problem of Identifying Key Diazotrophic Bacteria in Gramineous Plants: The Classical Approach 3. The Significance of Diazotrophic Grass Endophytes 4. The Significance of Culture-Independent Methods 5. The Significance of nifH-Targeted Methods 6. Limitations of nifH-Targeted Methods 7. M ...