The short-stemmed selection of M4 generation of Mentik Susu rice mutants as irradiation result with 200 gray gamma ray

This study observed the performance of mutated M4 generation of "mentik susu" rice irradiated with 200 Gy gamma ray and select the high productivity short-stemmed ones. The research was conducted in Karangpung Village, Kismoyoso, Ngemplak, Boyolali Regency. In total, 39 individual M3 200 Gy gamma ray irradiated "mentik susu" rice and non-irradiated "mentik susu" rice as control were planted. The observation was analyzed descriptively and used t-test to know the difference with the control. There were differences between irradiated and non-irradiated rice on plant height, harvest time, number of productive tillers, weight of 100 grains, and grain yield per plant. There were 25 selected mutated M4 generation "mentik susu". Those strains were M-MS2-G15T3- 2 (5),(19),and (27), M-MS2-G15T3- 4 (7) and (28), M-MS2-G15T3- 5 (21), M-MS2-G15T3- 7 (18) and (28), M-MS2-G15T3- 8 (5), M- MS2-G15T4-24 (10), M-MS2-G13T20- 12 (17) and (27), M-MS2-G18T7- 4 (4),(5),(9), and (24), M- MS2- G18T7- 6 (19) and (24), M- MS2- G18T7- 7 (11) and (24), M-MS2-G18T7- 10 (5), M- MS2- G18T7- 11 (24), and M- MS2- G17T7- 15 (2) and (10) which were irradiated, and have short-stemmed characteristic and higher production compared to the control. (paper)