N.S. Arifin, F. Hayyu, S. Darmawan
Corn is the most productive cereal crop in the world. It is suitable to be planted at the area of high temperature, as ear (cob) maturation is determined by the accumulation of heat gained by the plant. In Indonesia, field corn is the second staple food following rice, though the purple corn has not been found abundantly in this region. This research was carried out during two planting seasons (March to December 2014) at the Brawijaya University, Malang, East Java, Indonesia. Most of the current research discussed about the anthocyanin as favorable antioxidant for health and is reported to have for specific anti-cancerous effect. Efforts were made to determine the trait changes in purple corn plant following pollen mutation with gamma ray irradiation. The observations regarding amylopectin and anthocyanin contents including morphological and agronomic traits were recorded. The pollen of 40 purple corn genotypes have been irradiated with gamma irradiation with the given doses of 0 Gy, 25 Gy, 50 Gy, and 100 Gy per 10 genotypes at National Nuclear Energy Agency (BATAN), Indonesia. After pollination with irradiated pollen, 200 generated seeds in each irradiation level were used for planting material. Gamma irradiation affected on purple corn crops will all given doses except 0 Gyand observed some unique plants of curly glume stalk at 25 Gy, three-pronged ears at 50 Gy, and an extra-ordinary long for ear stalk at 100 Gy. The regression of gamma irradiation dose with amylopectin was y = -0.001x2 + 0.171x + 40.17 (R2 = 0.802), while that with anthocyanin was y = -0.001x2+ 0.026x + 0749 (R2 = 0.617). © Society for the Advancement of Breeding Research in Asia and Oceania (SABRAO) 2017.
Faculty of Agriculture, Brawijaya University, Malang, East Java, Indonesia
