Ernayunita, E.; Rahmadi, H. Y.; Harahap, I. Y.; Purba, A. R. THE ROLE OF NAA, GA3, ACTIVATED CHARCOAL, AND SUCROSE ON ZYGOTIC EMBRYOS CULTURE OF HYBRID OG OPEN POLLINATED CLONE (Elaeis Guineensis JACQ. X Elaeis Oleifera). J. Penelitian Kelapa Sawit 2016, 24, 115-126.