This study aims to determine the concentration of KNO3 and the best use of light in breaking seed dormancy and germination of rice (Oryza sativa L) seeds variety inpari 32 in the after-ripening period. This research was conducted at the Seed Technology Laboratory of the Faculty of Agriculture, Sriwijaya University, Indralaya, Ogan Ilir, South Sumatra in November 2023. This study used the method…