Sweetpotato seed systems: A question of quantity and quality

International Potato Center. 2011. Sweetpotato seed systems: A question of quantity and quality. Sweetpotato Action for Security and Health in Africa. CIP. 2 p.

Techniques do exist to remove viruses, multiply plantlets in-vitro in tissue culture labs, and protect this disease-free foundation material in screen houses. This material is relatively expensive; hence the challenge remains to lower the cost of producing clean planting material, prevent its re-infection and demonstrate that farmers who utilize such materials reap worthwhile gains.