Research Article
Symbiotic Nitrogen Fixation of Two Soybean Genotypes as Affected by Root-Knot Nematode and Microsymbionts
International Institute of Tropical Agriculture Ibadan, Nigeria; c/o L.W. Lambourn and Co., Carolyn House, 26 Dingwall Road, Croydon CR9 3EE, England
E.O. Oyekanmi
Department of Botany and Microbiology, University of Ibadan, Nigeria