Host Status of Selected Plant Species for Meloidogyne megadora

Authors

  • Ana M. S. F. de Almeida
  • M. Susana N. de A. Santos
  • M. F. Ryan

Keywords:

Cropping Systems, Host Range, Meloidogyne megadora, Root-Knot Nematodes

Abstract

Thirty-two plant genotypes, mainly cultivars from nineteen plant species, were tested as hosts for Meloidogyne megadora under growth-room conditions at ambient temperature ranging from 20 to 28C. Each plant was inoculated with 5 000 eggs and second-stage juveniles. Host suitability was assessed 60 days after inoculation, based on root gall index and final population level. The cultivars of cucumber (Cucumis sativus) and one of banana (Musa acuminata cv. Grande Ana) were the most susceptible hosts. Two banana genotypes (M. acuminata cv. Hybrid Williams and M. paradisiaca), sweet potato (Ipomoea batatas) and two pea (Pisum sativum) cultivars were also susceptible. Resistant were: two cultivars of pepper (Capsicum annuum), three of lettuce (Lactuca sativa), and one cultivar each of cabbage (Brassica oleracea cv. Tronchuda Portuguesa), watermelon (Citrullus vulgaris), relish (Petroselinum crispum), eggplant (Solanum melongena), potato (Solanum tuberosum), papaya (Carica papaya), and dwar

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Published

1997-06-01

Issue

Section

Articles