Reaction of fig tree to three species of root-knot nematodes/Reacao de figueiras a tres especies de nematoides-das-galhas

Root-knot nematodes are the main soil pathogens of fig culture around the world. The aim of this study was to evaluate the reaction of fig genotypes to M. javanica, M. incognita and M. enterolobii, for using as rootstocks. Plants were inoculated with 5,000 eggs of the nematode test. Gall index, egg...

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Veröffentlicht in:Revista Brasileira de fruticultura 2015-09, Vol.37 (3), p.617
Hauptverfasser: Costa, Marylia Garriella Silva, Correia, Erika Cristina Souza Da Silva, Dos Reis, Luis Lessi, Wilcken, Silvia Renata Siciliano
Format: Artikel
Sprache:por
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Zusammenfassung:Root-knot nematodes are the main soil pathogens of fig culture around the world. The aim of this study was to evaluate the reaction of fig genotypes to M. javanica, M. incognita and M. enterolobii, for using as rootstocks. Plants were inoculated with 5,000 eggs of the nematode test. Gall index, egg mass index and reproduction factor were evaluated at 120 days after inoculation. All genotypes were susceptible to M. javanica, M. incognita and M. enterolobii. Index terms: Ficus carica L., resistance, Meloidogyne. Os nematoides-das-galhas sao considerados os patogenos que habitam o solo de maior importancia na cultura da figueira no mundo. O objetivo do presente estudo foi avaliar a reacao de genotipos de figueira a Meloidogyne javanica, M. incognita e M. enterolobii, com a possibilidade de serem utilizados como porta-enxerto resistente a esse patogeno. Os genotipos foram inoculados com 5.000 ovos e eventuais juvenis de segundo estadio das especies dos nematoides em teste. As avaliacoes foram feitas aos 120 dias apos a inoculacao. As variaveis avaliadas foram: os indices de galhas, de massas de ovos e o fator de reproducao do nematoide. Todos os genotipos estudados comportaram-se como suscetiveis a M. javanica, M. incognita e M. enterolobii. Termos para indexacao: Ficus carica L., resistencia, Meloidogyne.
ISSN:0100-2945
DOI:10.1590/0100-2945-168/14