Paper Title
The Improvement Of Sorghum (Sorghum bicolor l.) For high yield Through Induced Mutation

Abstract
- Sorghum is used as alternative food source, animal feed and raw material for industries. A locally adapted cultivar of sorghum (Yezin-7) was irradiated with different doses of Gamma ray (0 Gy�700 Gy), with increment of 100 Gy. Attempts were made to induce genetic variability in yield contributing traits in sorghum. Wide range of viable morphological and physiological mutants were screened and isolated in M2 generation such as chlorophyll mutations (albino, viridis, striata); leaf mutations (narrow, broad); morphological mutations (early, dwarf, tall, twin stem); panicle mutations (twin panicle, compact, spread) and seed mutations (pink, brown, long, round, bold, small). The highest total frequency of mutation was found at 400 Gy. The early mutant matured 8 days earlier than the parent variety. Tall mutant was two-fold higher than dwarf mutant. Small seed mutant showed two times decrease in seed size compared to control. Compact panicle mutant, small seed mutant and high yielding mutant displayed two-fold increase in number of seeds per plant compared to control. Considerable variation was observed with regards to number of seeds per plant and seed size. High yielding mutant that was observed at 400 Gy produced double the yield per plant as compared to control. Induced mutants showed both positive and negative increase in the yield contributing traits. Keywords- Sorghum, Gamma ray, morphological mutants, 400 Gy, high yielding mutant