Effect of honeybee (Apis mellifera) pollination on seed yield and yield parameters of Guizotia abyssinica (L.f.)
Haftom Gebremedhn
Haftom Gebremedhn
Apiculture and Sericulture Case Team, Mekelle Agricultural Research Center, Tigray Agricultural Research Institute, P. O. Box 492, Mekelle, Tigray, Ethiopia.