This research was aimed to evaluate the genetics of T1 and TR1 accession groups in BC2F3 resulted from the crossing of Inpago 5 and Inpara 8 rice varieties. This research was carried out from September 2023 to January 2024. It was carried out in lebak swamp land located in Ibul Besar II Village, Pemulutan District, Ogan Ilir Regency, South Sumatera Province and in Plant Biomolecular Laboratory,…