The most commonly used ioizing radiation in rice experiments are the gamma ray obtained. Grown a large number of M1 havests M1 plants progenies (M2) and used M2 to checked for phytic acid. Screening techniques developed were depend upon the agronomic traits of the yield component characters. All experiments were conducted in field at CLRRI. Based on the phenotypic characteristics of the phytic acid content of mutant rice line from OM4900 have development with 5 level, 10, 20, 30, 40 and 50 kr. Genetic distance divided into many different groups with the varieties correlation between the high and low phytic acid. Most of the group were recorded season rice phytic acid content of the highest level 1 to level 2 design. There are very low levels recorded level 3 and 4. No recorded of phytic content of 5, such as OM490C46, OM4900-52, OM4900-64, OM4900-93 and OM4900-83. No. The variation in the high phosphorus grain are evaluated not only on each line of each grain, evaluate the results of the grain in the same line were recorded. The uniformity in the assessment of the ability to identify homozygous and heterozygous populations assessment of expression levels of phosphorus grain changed. The success in identifying the salt tolerant lines could be atributed to the capacity screening. These lines can now be used by breeders for further genetic studies field -tested for adaptability, and used as sources of low phytic acid in hybridization breeding program.