HOSPEDABILITY OF Malphighia punicifolia L. TO Meloidogyne javanica AND M. arenaria, STRAIN 2

Authors

  • Dilson da Cunha Costa Embrapa Mandioca e Fruticultura
  • João Roberto Pereira Oliveira Embrapa Mandioca e Fruticultura
  • Walter dos Santos Soares Filho Embrapa Mandioca e Fruticultura
  • Fábio Ramos Alves CNPq

Keywords:

Malpighia punicifolia, root-knot nematodes, host plant resistance

Abstract

The root-knot nematode (Meloidogyne spp.) attacks several species causing significant yield losses. Plants of Barbados cherry (Malpighia punicifolia L.) infected by root-knot nematodes exhibit yellowish, reduction in leaf size and dwarfism, and this may even result in death. Taking into consideration the importance of Barbados cherry in Brazil and the lack of research on the influence of these parasites on the crop, this study was carried out with the objective of studying the behaviour of selected genotypes of Barbados cherry infected by M. javanica and M. arenaria, strain 2. Two trials were established following a completely randomized experimental design with six replicates. Plants of M. punicifolia L. propagated by cuttings were inoculated with a suspension containing eggs plus second juvenile stage of M. arenaria, strain 2 (15,000) and M. javanica (17,900). Plants were kept in greenhouse for 90 days. Host capacity of the genotypes was evaluated by gall indexes and mass of eggs for each root system and classified as resistant and susceptible. All genotypes behaved as susceptible to the species of root-knot nematodes tested.

KEY-WORDS: Malpighia punicifolia; root-knot nematodes; host plant resistance.

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Published

2007-12-19

How to Cite

COSTA, D. da C.; OLIVEIRA, J. R. P.; SOARES FILHO, W. dos S.; ALVES, F. R. HOSPEDABILITY OF Malphighia punicifolia L. TO Meloidogyne javanica AND M. arenaria, STRAIN 2. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 28, n. 2, p. 77–82, 2007. Disponível em: https://revistas.ufg.br/pat/article/view/2998. Acesso em: 22 dec. 2024.

Issue

v. 28, n. 2, Jul./Dec. 1998

Section

Research Article

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