Eticha Shiberu Dema; Nigussie Dachassa; Temesgen Desalegn; Tesfaye Balemi
(Haramaya University, 2023-04)
Black cumin (Nigella sativa L.) is one of the most important spice and medicinal herb which is
produced mainly by smallholder farmers in Ethiopia. However, the seed yield of the crop is low
due to a number of constraints ...