ABSTRACT This study aims to determine the effect of the best concentration of the combination of BAP with tomato extract on the growth of epicotyl explants of Citrus nobilis Lour. and to support the growth of Citrus nobilis Lour. plantlets from Kampar in vitro. This research was conducted at the Biotechnology Laboratory, Faculty of Agriculture, Riau University, Pekanbaru from Desember 202…