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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido; Embrapa Soja. |
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Data corrente: |
21/05/2024 |
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Data da última atualização: |
23/05/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA, P. G. de; QUEIROZ, M. A. de; CASTRO, J. M. da C. e; SILVA, M. M. P. da. |
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Afiliação: |
PATRÍCIA GOMES DE OLIVEIRA, UNIVERSIDADE ESTADUAL DE FEIRA DE SANTANA; MANOEL ABÍLIO DE QUEIROZ, UNIVERSIDADE DO ESTADO DA BAHIA; JOSE MAURO DA CUNHA E CASTRO, CNPSO; MAURÍCIO MOISÉS PEREIRA DA SILVA, INSTITUTO NACIONAL DE COLONIZAÇÃO E REFORMA AGRÁRIA. |
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Título: |
Resistance of guava accessions to Meloidogyne enterolobii. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Revista Caatinga, v. 37, e11485, 2024. |
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Páginas: |
8 p. |
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DOI: |
10.1590/1983-21252024v3711485rc |
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Idioma: |
Inglês |
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Conteúdo: |
Guava is a highly important fruit crop worldwide; however, a severe phytosanitary problem caused by the parasitism of Meloidogyne enterolobii has been limiting guava yields in Brazil and in several countries. The incidence of the nematode M. enterolobii results in significant decreases in yield, often resulting in plant death in the medium term. Considering a contribution to control tools, the objective of this study was to assess the resistance of 37 accessions of Psidium guajava grown in a greenhouse to M. enterolobii. Seedlings from seeds of each accession were inoculated with 4,000 eggs of M. enterolobii when they were at the three- to six-leaf stage, in two experiments. The root system of each plant was collected at 135 days after inoculation for extracting nematode eggs. The eggs were counted in three aliquots of 1 mL plant-1 , and the obtained data were subjected to analysis of variance, which showed significant differences among accessions and among plants of the same accession. Accessions were classified regarding resistance based on the reproduction factor (RF = Pf / Pi = 4,000). The P. guajava germplasm studied showed a significant variability in responses to M. enterolobii; resistant plants were identified for accessions A08, A15, A26, A13, and A30A in Experiment I and for accessions A31, A11, A16, A30A, GF3, and A08 in Experiment II; the accessions A08 and A30A stood out by presenting resistant plants in both experiments. |
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Palavras-Chave: |
Meloidogyne enterolobii; Nematoide-das-galhas. |
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Thesagro: |
Goiaba; Nematóide; Psidium Guajava. |
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Thesaurus Nal: |
Guavas; Root-knot nematodes; Screening. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1164375/1/Resistance-of-guava-accessions-to-Meloidogyne-enterolobii.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1164434/1/11485-ARTIGO-PUBLICAR-72825-80467-10-20240521.pdf
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Marc: |
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001 2164434
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008 2024 bl uuuu u00u1 u #d
024 7 $a10.1590/1983-21252024v3711485rc$2DOI
100 1 $aOLIVEIRA, P. G. de
245 $aResistance of guava accessions to Meloidogyne enterolobii.$h[electronic resource]
260 $c2024
300 $a8 p.
520 $aGuava is a highly important fruit crop worldwide; however, a severe phytosanitary problem caused by the parasitism of Meloidogyne enterolobii has been limiting guava yields in Brazil and in several countries. The incidence of the nematode M. enterolobii results in significant decreases in yield, often resulting in plant death in the medium term. Considering a contribution to control tools, the objective of this study was to assess the resistance of 37 accessions of Psidium guajava grown in a greenhouse to M. enterolobii. Seedlings from seeds of each accession were inoculated with 4,000 eggs of M. enterolobii when they were at the three- to six-leaf stage, in two experiments. The root system of each plant was collected at 135 days after inoculation for extracting nematode eggs. The eggs were counted in three aliquots of 1 mL plant-1 , and the obtained data were subjected to analysis of variance, which showed significant differences among accessions and among plants of the same accession. Accessions were classified regarding resistance based on the reproduction factor (RF = Pf / Pi = 4,000). The P. guajava germplasm studied showed a significant variability in responses to M. enterolobii; resistant plants were identified for accessions A08, A15, A26, A13, and A30A in Experiment I and for accessions A31, A11, A16, A30A, GF3, and A08 in Experiment II; the accessions A08 and A30A stood out by presenting resistant plants in both experiments.
650 $aGuavas
650 $aRoot-knot nematodes
650 $aScreening
650 $aGoiaba
650 $aNematóide
650 $aPsidium Guajava
653 $aMeloidogyne enterolobii
653 $aNematoide-das-galhas
700 1 $aQUEIROZ, M. A. de
700 1 $aCASTRO, J. M. da C. e
700 1 $aSILVA, M. M. P. da
773 $tRevista Caatinga$gv. 37, e11485, 2024.
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Embrapa Soja (CNPSO) |
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