Performance of some African striga resistant sorghum cultivars under different nitrogen fertilization in the Sudan

• Published in: Sudan Journal of Agricultural Research (Sudan) Vol. 17
• Main Authors: Dawoud, D.A., Agricultural Research Corporation, Wad Medani (Sudan), Ahmed, E.A., Agricultural Research Corporation, Wad Medani (Sudan), Babiker, A.G., Sudan University of Science and Technology, Khartoum (Sudan). College of Agricultural Sciences
• Format: Journal Article
• Language: English
• Published: 2011
• Subjects: ABONOS NITROGENADOS; DESHERBAGE; ENGRAIS AZOTE; ESCARDA; FECONDATION; FECUNDACION; FERTILIZATION; http://www.fao.org/aos/agrovoc#c_16196; http://www.fao.org/aos/agrovoc#c_2863; http://www.fao.org/aos/agrovoc#c_32339; http://www.fao.org/aos/agrovoc#c_5195; http://www.fao.org/aos/agrovoc#c_7247; http://www.fao.org/aos/agrovoc#c_7497; http://www.fao.org/aos/agrovoc#c_8157; http://www.fao.org/aos/agrovoc#c_8345; NITROGEN FERTILIZERS; PESTS OF PLANTS; PLAGAS DE PLANTAS; RAVAGEUR DES PLANTES; SORGHUM BICOLOR; SOUDAN; STRIGA HERMONTHICA; SUDAN; VARIEDADES; VARIETE; VARIETIES; WEED CONTROL
• ISSN: 1561-770X

A study was conducted during 2006-07 and 2008-09 seasons to evaluate the performance of some African Striga resistant sorghum cultivars in Striga-sick plots under different nitrogen fertilization rates in the Sudan. The cultivars tested were Wahi, Hakika, from Tanzania, Gobiye, Abshir and Brhan from Ethiopia. The Sudanese cultivars SRN - 39, which is Striga resistant with low acceptability by farmers and Tabat which is a widely grown commercial cultivar with high susceptibility to Striga were included for comparison. The cultivars were tested with or without nitrogen application in form of urea at 80 kg urea/fed applied at sowing. Results showed non-significant interactions between cultivars and nitrogen indicating similar effects of nitrogen in all cultivars. The susceptible cultivar, Tabat, and Wahi from Tanzania depicted significantly higher Striga emergence, Striga biomass and lower grain yield than all other cultivars. Hakika, Abshir, Gobiye and Brhan stimulated Striga emergence similar to the resistant cultivar SRN - 39. The highest grain yield was produced by Hakika which was significantly higher than Tabat, SRN-39, Brhan and Wahi in the first season by 219%, 98%, 135% and 68%, respectively. Application of urea, invariably, reduced Striga incidence and increased grain yield of all cultivars