Induced chlorophyll and macro-mutational spectrum and frequency in sesame cv. B 67

摘要

Seed treatment of sesame cv.B67, with EMS, NG, Gamma rays, Gamma rays + EMS and Gamma rays + NG induced five types of chlorophyll mutations and 17 types of viable macro-mutations in M_2. Chlorophyll mutation frequency was the highest in 900 Gy gamma rays for single mutagen treatments and in 700 Gy + 0.04% NG for combined treatments. Macro-mutational frequencies for single and combined treatments were the highest in 0.25% EMS and 700 Gy + 0.02% NG, respectively. Relative difference in mutability of gene loci for chlorophyll and macro-mutations with respect to different mutagcns were clearly observed.