Seed Purity Assessment of Two Local Upland Rice Cultivars of Southeast Sulawesi Based on Agronomic Characteristics T Wijayanto1, Suryaningsih1, A Setiawan1, R Mandia1, Syafirah1, Ismail1, D Boer1, M A Arsyad1, N M Rahni1, L A Dedu2, Asniah3, W S A Hisein3, and V N Satrah3
1Department of Agrotechnology, University of Halu Oleo, Southeast Sulawesi, Indonesia
2Department of Agribusiness, University of Halu Oleo, Southeast Sulawesi, Indonesia
3Department of Plant Protection, University of Halu Oleo, Southeast Sulawesi, Indonesia
Abstract
This research intended to purify upland rice seeds that have presumably been unintentionally mixed with various types of rice seeds, causing decreased quality or nature of the superior upland rice cultivars. Seed purification effort is needed to restore the purity of the seeds of promising local upland rice cultivars. The second long term goal of this research was to produce basic pure seeds, that are required for further breeding programs, and/or for the purpose of releasing new varieties. This study was the second generation of purification effort, aimed to further select the same or uniform agronomic characteristics of the local upland rice cultivars in each seed lot. Similar with the first generation, the experiment used a Randomized Block Design (RBD) consisting of 15 seed lots as treatment and each seed lot consisted of 3 ^grids^ (replications). This research was conducted at the Field Laboratory, Experimental Garden II, Faculty of Agriculture, Halu Oleo University. Data were analyzed using 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 several characters (i.e., plant height, leaf number, and tiller number etc.) of the two rice cultivars were seem more uniform as compared to the first generation of purification. This indicates that the seeds are gradually purer.
