RESISTANCE OF PINEAPPLE GENOTYPES TO Meloidogyne javanica AND Pratylenchus brachyurus

Authors

  • Dilson da Cunha Costa
  • José Renato Santos Cabral
  • Carlos Humberto Calfa
  • Moema Angélica Chaves da Rocha

Keywords:

Ananas comosus, resistance, root knot nematode, root lesion nematode

Abstract

The resistance of ten genotypes of pineapple to two nematodes species, Meloidogyne javanica and Pratylenchus brachyurus, was evaluated in two experiments at greenhouse. Each one of them was completely randomized with six replications. The cultivar Smooth Cayenne was used as a susceptible control. Each plot was represented by one plant/pot. Each pot held 4 l of soil previouly sterilized with metil bromide. Pineapple seedlings were inoculated, two months after planting, with 1,000 juveniles (J2) of M. javanica at the first experiment and 1,000 individuals of P. brachyurus at the second experiment. Taproot weight, eggs masses, nematodes per plant and reproduction rate were recorded 90 days after inoculation. The resistance selection was based on the percentage of the reproduction rate. The genotypes FRF- 632 and H- 3607 had minor resistance to M. javanica (PR) and LBB- 1385, Primavera, FRF- 609 and LBB- 1396 presented moderated resistance (MR). The genotypes H- 3607, LBB-1396, Perolera, FRF- 609 and Primavera had minor resistance to P. brachyurus (PR).

KEY-WORDS: Ananas comosus; resistance; root knot nematode; root lesion nematode.

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Author Biographies

José Renato Santos Cabral


Carlos Humberto Calfa


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Published

2007-12-13

How to Cite

COSTA, D. da C.; CABRAL, J. R. S.; CALFA, C. H.; ROCHA, M. A. C. da. RESISTANCE OF PINEAPPLE GENOTYPES TO Meloidogyne javanica AND Pratylenchus brachyurus. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 29, n. 1, p. 57–60, 2007. Disponível em: https://revistas.ufg.br/pat/article/view/2881. Acesso em: 24 nov. 2024.

Issue

v. 29, n. 1, Jan./Jun. 1999

Section

Research Article

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