1. INTRODUCTION
2. DISTRIBUTION AND AVAILABILITY OF TROPICAL VEGETABLE CROPS

2.1 Origin
2.2 Domestication
2.3 Distribution
2.4 Reservoir of germplasm
2.5 References

3. EXPLORATION, COLLECTION, EVALUATION AND DOCUMENTATION OF GERMPLASM

3.1 Gene Erosion
3.2 Germplasm Collection
3.3 Evaluation, Multiplication and Documentation
3.4References

4. GENETIC IMPROVEMENTS IN TROPICAL VEGETABLE  CROPS

4.1 Introduction
4.2 Evaluation and Selection
4.3 Pure-Line Breeding
4.4 Hybrid and Cultivars
4.5 Inter-varietal Hybridization
4.6 Interspecific Hybridization
4.7 Mutation Breeding and Polyploids
4.8 Synthetic Cultivars
4.9 Conclusion
4.10 References

5. GERMPLASM CONSERVATION

5.1 Handling of Seeds
5.2 Germplasm Storage
5.3 Plant Quarantine and Transfer of Genetic Resources
5.4 References

6. SUGGESTIONS AND CONCLUSIONS