The three media were medium for callus growth, embryogenetic medium, and organogenetic medium.
Panote Thavarungkul, Kamnoon Kanchanapoom 2002, 'Effect of applied currents to growth in oil palm (Elaeis guineensis Jacq.) tissuecultures', Songklanakarin Journal of Science and Technology (SJST)http://www.sjst.psu.ac.th/journal/24-2_pdf/11.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)