The obtained results are also in full agreement with that of Shehata et.al,
(2009) who produced rice lines with early duration, better agronomic performance
compared with the original variety Egyptian Yasmin using various doses of gamma
rays. AbdAllah et al., (2009) also used gamma rays to produce elite mutants from five
Egyptian rice varieties. They highlited the usefulness of mutation as breeding method
to enhance genetic variability for development of elite rice lines with better
agronomic performance.