This study was aimed to determine the effect of dose of gamma radiation of seeds on plant
growth and plant production of Brachiaria brizantha cv. MG5 during 3 different growth phases. The
variables measured were plant growth parameters (height and length of plant, number of leaves and
tillers) and production (dry matter and organic matter productions). Data were analyzed in a 5 x 3
factorial design. The first factor was dose of gamma radiation consisted of 5 levels i.e., 0, 100, 200, 300,
and 400 Gy. The second factor was regrowth phase consisted of 3 levels i.e., growth phase 1, growth
phase 2, and growth phase 3. The difference between means was analyzed using Duncan’s Multiple
Range Test (DMRT). The results showed that dose of gamma radiation influenced the plant growth
and production (P