Division of Botany, Indian Agricultural Research Institute, New Delhi-12
A variety of rice, N.P. 130, was irradiated with X-rays, thermal neutrons and β-particles from S35. Data on germination, lethality, height and meiosis of the M1 generation are discussed. The chimeric nature of M1 plants and its significance for the yield of chromosomal aberrations in M1 generation and the recovery of mutations in M2 generation are discussed. Data on chlorophyll mutation indicated that xantha mutations were more frequently encountered following treatment with S35 while albinas were more frequent following X-irradiation.
