Adaptation and improvement of the seed-plot technique in smallholder potato production. - Kinyua, Z.M.; Schulte-Geldermann, Elmar; Namugga, P.; Ochieng-Obura, B.; Tindimubona, S.; Bararyenya, A.; Kashaija, I.N.; Rwomushana, I.; Opio, F. (CAB International, 2015)