Suliman, Suhair, 		Elamin, Osman, AND 		Elkashif, Mohamed.
" Effect of nitrogen rates on fruit quality of four commercially seedless grapefruit (Citrus paradisi Macf.) cultivars in Gezira state, central Sudan" <em>Gezira Journal of Agricultural Science</em> [Online], Volume 20 Number 1 (14 June 2026)