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Severity of damage by Scutellonema bradys on the yield of some selected yam species in Makurdi, Benue state

Research Paper | January 1, 2020

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Oluwatayo Juliana Iye, Adepoju Isaiah Olusesan

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Int. J. Biosci.16( 1), 344-348, January 2020

DOI: http://dx.doi.org/10.12692/ijb/16.1.344-348


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Field evalution of the reactions of 10 Dioscorea rotundata varieties (TDr 89/02157, TDr 95/18942, TDr 95/19177, TDr 95/18988, TDr 95/18894, TDr 95/19158, TDr 97/00925, TDR 03/60193 and three Dioscorea alata varieties ( TDa 98/01166, TDa 98/01176 and TDa 99/00240 to Scutellonema bradys was carried out at the Teaching and Research Farm, University of Agriculture, Makurdi. Results showed significant (P = 0.05) variation in dry rot incidence which increased during the period of storage. Dioscorea alata species proved to be non-host to Scutellonema bradys as the nematodes were unable to survive in the roots and cause damage. Variations in the yield parameters (fresh weight of tubers, number of tubers per stand, number of tubers per plot) was significant (P = 0.05). Dioscorea alata plots produced significantly (P = 0.05) bigger tubers (2.7kg and above) which were free of nematodes.


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Severity of damage by Scutellonema bradys on the yield of some selected yam species in Makurdi, Benue state

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