Effect of bulb set girth and plant density on production of green bunch onion (Allium cepa L.) under rain-fed conditions at Blue Nile State, Sudan

Abstract

Experiments were carried out at Damazin Research Station farm during kharif season 2016 and 2017, to evaluate the effects of bulb set girth and plant density on growth, yield and characters of onion under rain-fed condition. Treatments include three factor of factorial combinations of two bulb set size girth (1-2 and 2-3 cm) ,intra-row spacing vis 7.5 and 10 cm and number of rows ridges-1 (two and three rows ridges-1). Results show that bulb set girth and plant density was effects on growth, yield and quality of onion. Results showed that The greatest yield tons ha-1 was obtained by large set when grown at 10 cm intra-row spacing three rows ridges-1 in both seasons.