ASD General information | ASD Worldwide ASD specializes in the research and development, production, and sale of high-yielding oil palm seeds and clones throughout the world. Commercial oil palm seeds are the result of a controlled crossing between the dura variety (characterized by a thick shell around the kernel) and the pollen of the pisífera variety (characterized by a thin or non-existent shell around the kernel.) The materials that ASD offers commercially are: Deli x Avros, Deli x Ekona, Deli x Calabar, Deli x La Mé, Tanzanias x Avros, and Bamenda x Avros, and among others. ASD is the world leader in oil palm cloning technologies and the first to successfully market these materials on a commercial scale. ASD also offers services to the palm oil industry such as training for oil palm plantation management as well as laboratory analyses of plant tissue, soils, fertilizers, water and pathology. Click here to visit the ASD site.