Embryo Incision as a New Technique for Double Seedling Production of Indonesian Elite Coconut Type “Kopyor” - Sisunandar, Sisunandar; Biology Education Department, University of Muhammadiyah Purwokerto Jl. Raya Dukuhwaluh, Kembaran, Purwokerto, 53182, Indonesia (ITB Journal Publisher, LPPM ITB, 2015)