The yield of three promising lines cempo ireng black rice M7 generation from gamma-ray irradiation

Abstract

Black rice as a functional food crop contains high anthocyanins to prevent free radicals triggered by global climate change. However, black rice is often uncultivated because of weaknesses such as low yields and long harvest times. Breeding using gamma-ray irradiation is one solution to obtain new high-yielding varieties. This study aims to examine the yield and anthocyanin content of promising lines of cempo ireng black rice M7 generation from gamma-ray irradiation, the yield test is required in plant breeding. The research was conducted from December 2019 to August 2020 at Karanganyar, using different treatment of plant lines: three irradiated lines of black rice and a line without irradiation (control). Observations were made on 30 random sample plants each line. Data were analyzed descriptively and the comparison between mutant and control plant performance using the T-test. Observational variables included plant height, flowering and plant age, number of productive and non-productive tillers, panicle length, number of pithy and empty grains, the weight of 1,000 seeds, productivity, and anthocyanin content. The yield and anthocyanin content of irradiated lines were better than the control line. The highest production value of 8.29 tons/ha and the highest anthocyanin content of 75.04 ppm in line 52.