Selection and field evaluation to increase yield and quality of several black rice accessions

Yield and quality of some local black rice cultivars were low as the panicle in the same clump do not reach maturity at the same time. This research program utilized plants of three local black rice cultivars of “Mariana”, “Purwokerto”, and “Toraja”. The plants were planted in pots and placed under a plastic house. Some agronomic traits were measured, including number of productive tiller (NPT) and NPT with mature grains in the panicle>85% (NPT-85). Selected plants were determined by quadrant method of NPT-85 over NPT. After three selection cycles, the research reveals four potential accessions of Mariana-58.07.(10,17,21,28),Mariana-96.04 (11,15,23,33); Purwokerto-06.09(10,23,27), and Toraja-06.07(11,13,19). These four accessions called as Unsri P-1 to Unsri P-4, respectively. Field evaluation indicated, the accessions were able to produce high quality grain with NPT-85 over NPT ratio ranged from 87% to 95 %, and yield potential ranged from 6.16 to 8.81 dry un-hulled grain t/ha.