Abstract
ABSTRACT Root-knot nematode Meloidogyne spp. causes galls on pepper (Capsicum spp L.) roots leading to yield loss. Root-knot disease control in pepper with chemical nematicides is effective but environmental and health concerns are serious drawbacks. Use of arbuscular mycorrhizal fungi (AMF) for control may present a solution. A screenhouse experiment was conducted to assess bio-control efficacy of 4 AMF species against Meloidogyne incognita infecting pepper genotypes with known resistance. Septoglomus deserticola and Funneliformis mosseae were the most efficient (p = .05) AMF species in inhibiting nematode infection, enhancing growth and fruit yield of pepper genotypes. Averaged across pepper genotypes, S. deserticola increased fresh fruit yield by 2.42% and 6.98% compared with Claroideoglomus claroideum and Gigaspora gigantea, respectively, while F. mosseae increased it by 1.43% and 5.95%, respectively. These AMF species might be used as bio-control agents of M. incognita infecting these pepper genotypes.
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