S. Thirugnanakumar, Professor and Head, Department of Genetics & Plant Breeding, Faculty of Agriculture, Annamalai University, Annamalai Nagar -608 002, Tamil Nadu, India.

• 1. Mutation and Crop Improvement 2. Classification of Mutagens and Their Effects 3. Procedure for Mutation Breeding 4. Effect of Mutagens on Germination and Survival in M1 Generation 5. Chlorophyll Mutations 6. Macromutations 7. Micromutations 8. Mutagenic Effectiveness and Efficiency 9. Correlation Between M1 and M2 Generation 10. Variability Parameters in M2 and M3 Generations in Sesame 11. Heritability and Genetic Advance as Percent in Sesame of Mean in M2 and M3 Generations 12. Frequency Distribution in M2 and M3 Generations in Sesame