Growth and production of sixth generation of brown rice mutants in a high altitude location

Abstract

Abstract This paper presents the result of an experiment which aimed to determine the growth and production of some 6th generation Sinjai brown rice mutants (M6) in the highlands. The experiment was conducted in an irrigated paddy field with a height of 750 meters above sea level. The arrangement was a randomized block design (RBD). The treatments consisted of 8 brown rice mutant lines (g1, g2, g3, g4, g5, g6, g7, g8) and Sinjai brown rice parent as control (g9). The results showed that the mutant lines g2 and g3 produced the highest grain production of 3.10 tons ha−1 and 3.13 tons ha−1 respectively. Mutant strains g2 and g3 were short in plant height with a high number of productive tillers, flowering age and a faster harvest time, as well as highest grain length. g2 and g3 strains are the most potential lines to be developed in the highlands. The growth character and production components that have a real positive correlation to production per hectare are production per clump and presentation of filled grain per panicle.