IDENTIFICATION OF SOURCES OF RESISTANCE TO Meloidogyne enterolobii IN ACEROLA

In Brazil, acerola trees infested by Meloidogyne enterolobii present lower yield and fruit quality. The use of rootstocks resistant to this pathogen is one of the alternatives to overcome this problem. This study aimed to assess the reaction of 22 acerola accessions to M. enterolobii, aiming to iden...

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Veröffentlicht in:Caatinga 2021-10, Vol.34 (4), p.879
Hauptverfasser: John Lennon Ferreira dos Santos, Flávio de França Souza, Jerônimo Constantino Borel, Jose Mauro da Cunha e Castro, Alexandre Sandri Capucho
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container_title Caatinga
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creator John Lennon Ferreira dos Santos
Flávio de França Souza
Jerônimo Constantino Borel
Jose Mauro da Cunha e Castro
Alexandre Sandri Capucho
description In Brazil, acerola trees infested by Meloidogyne enterolobii present lower yield and fruit quality. The use of rootstocks resistant to this pathogen is one of the alternatives to overcome this problem. This study aimed to assess the reaction of 22 acerola accessions to M. enterolobii, aiming to identify at least one resistant rootstock. The experiment was carried out in a randomized block design with 10 replications and each plot consisting of 10 plants. Each plant was inoculated with 350 eggs and second-stage juveniles of M. enterolobii, with the gall index (GI) and reproduction factor (RF) being determined after 90 days. The variables were analyzed using the mixed model methodology (REML/BLUP). The accessions ACO-13, ACO-14, ACO-18, and BRS Apodi stood out with four to six plants showing resistance reaction to the root-knot nematode, but the assessment of accessions should be performed under a higher density inoculum and longer time.
doi_str_mv 10.1590/1983-21252021v34n415rc
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subjects Agricultural production
Eggs
Food quality
Germplasm
Immunoglobulins
Inoculum
Meloidogyne enterolobii
Nematodes
Pest resistance
Rootstocks
Variables
title IDENTIFICATION OF SOURCES OF RESISTANCE TO Meloidogyne enterolobii IN ACEROLA
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