Table of Contents Section I - Cassava (Manihot Spp.): 1. Cassava (Manihot spp.), 2. Origin and Geographical Distribution (Manihot spp.), 3. Cassava: Botany, 4. Cassava: Cytogenetics, 5. Cassava: Improvement Strategy, 6. Cassava: Physiology, 7. Cassava: Microbial System, 8. Cassava: Climate and Soil, 9. Cassava: Agro-Techniques, 10. Cassava: Water Management, 11. Cassava: Based Cropping System, 12. Cassava: Harvesting and Yield, 13. Cassava: Area, Production and Productivity, 14. Cassava: Diseases, 15. Cassava: Pests, 16. Cassava: Composition of Tuber and Leaf, 17. Cassava: Toxic Principles - Cyanogenic Glucoside, 18. Cassava: Utilization of Tapioca, 19. Cassava: Post-Harvest Deterioration, Preservation and Shelf-Life, 20. Cassava: Marketing and Trade, 21. Cassava: Selected References, Section II - Sweet Potato: 1. Sweet Potato: Introduction, 2. Sweet Potato: Botany, 3. Sweet Potato: Cytogenetics, 4. Sweet Potato: Improvement Strategy, 5. Sweet Potato: Physiology, 6. Sweet Potato: Climate and Soil, 7. Sweet Potato: Agro-Techniques, 8. Sweet Potato: Area, Production and Productivity, 9. Sweet Potato: Diseases, 10. Sweet Potato: Pests, 11. Sweet Potato: Composition of Tubers, Section III - Aroids: 1. Aroids: Introduction, 2. Coco-Yams: Botany, 3. Coco-Yams: Cytogenetics, 4. Coco-Yams: Improvement Strategy, 5. Coco-Yams: Climate and Soil, 6. Coco-Yams: Agro-Techniques, 7. Aroids: Area, Production and Productivity, 8. Aroids: Diseases, 9. Aroids: Pests, 10. Coco-Yams: Composition and Utilization, 11. Elephant-Food-Yam (Amorphophallus campanulatu (Roxb.) Blume), 12. Eleplant-Foot-Yam: Agro-Techniques, 13. Amorphophallus: Diseases, 14. Amophophallus: Pests, 15. Amorphophallus: Harvest and Yield, 16. Amorphophallus: Chemical Composition, Section IV - Yams (Dioscorea Spp.): 1. Yams (Dioscorea spp.), 2. Yams: Botany, 3. Yams: Cytogenetics, 4. Descriptors for Dioscorea alata, 5. Yams: Climate and Soil, 6. Yams: Agro-Techniques, 7. Yams: World Area, Production and Productivity, 8. Yams: Diseases, 9. Yam: Pests, 10. Yams: Chemical Composition, 11. Yams: Utilisation, 12. Yam: Problems of Production, Section V - Minor Tuber Crops: 1. Minor Tuber Crops, 2. Coleus: Agro-Techniques, References