Purification of local upland rice seeds based on morphological characteristics

Abstract

This research is directed to overcome the problem of upland rice seeds that are no longer pure, because they have been mixed with other types of rice seeds, which can result in a decrease in the quality or nature of superior upland rice which is already favorable by the community. Seed purification is needed to restore the purity of the seeds of superior local upland rice lines. Another target of this research is to produce basic seeds of pure local upland rice lines (without mixture), which are needed for further breeding programs, or for the purpose of releasing varieties, as well as for production purposes for consumption. This study aims to select and detect the same/uniform morphological characteristics of local upland rice in each seed lot and to find out which seed lots show high uniformity. The experiment used a Randomized Block Design (RBD) consisting of 20 seed lots as treatment and each seed lot was made into a so-called “grid” (replication) of 3 grids. This research was conducted at the Field Laboratory, Experimental Garden II, Faculty of Agriculture, Halu Oleo University. Observational data were analyzed with variance and qualitative characters were converted to binary data and analyzed by the NTSYS program. If there is a significant effect, then proceed with the Scott Knott group test (α = 0.05). The results showed a very significant effect on the variables of flowering age, productive tillers and flag leaf angle, and no significant effect on the variables of plant height, number of leaves, number of tillers, harvest age, panicle length, flag leaf area, total grain per panicle and percentage of grain. per panicle.