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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
12/08/2019 |
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Data da última atualização: |
02/12/2019 |
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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; RIBEIRO, J. M.; OLIVEIRA, R. S. de; SILVA, M. J. L. da. |
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Afiliação: |
PATRÍCIA GOMES DE OLIVEIRA; MANOEL ABILIO DE QUEIROZ; JOSE MAURO DA CUNHA E CASTRO, CPATSA; JULIANA MARTINS RIBEIRO, CPATSA; RONALDO SIMÃO DE OLIVEIRA; MARIA JOSÉ LIMA DA SILVA. |
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Título: |
Reaction of Psidium spp accessions to different levels of inoculation with Meloidogyne enterolobii. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Revista Caatinga, v. 32, n. 2, p. 419-428, abr./jun. 2019. |
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DOI: |
10.1590/1983 - 21252019v32n215rc |
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Idioma: |
Inglês |
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Conteúdo: |
Meloidogyne enterolobii associated with Fusarium solani causes the guava decay, which is the main factor of yield loss in guava crops and limits guava production in Brazil. Therefore, searching for guava genotypes (Psidium spp.) with resistance to M. enterolobii is important to control this root-knot nematode. The objective of the present work was to evaluate the reaction of Psidium spp. accessions from the Germplasm Bank of the Bahia State University (UNEB) to different levels of inoculation with M. enterolobii. Guava seedlings were inoculated with 600, 1,600, and 2,000 eggs + J2 second stage juveniles of M. enterolobii and the root fresh weight, total number of eggs (TNE), and reproduction factor (RF) were evaluated. The results were subjected to ANOVA and means were clustered using the Scott-Knott test at 5% probability. The diversity of accessions was estimated using the Tocher's clustering and UPGMA methods. The nematode RF reduced in some accessions with increasing inoculation levels of the nematode. However, the RF increased in some accessions with high levels of inoculation. Plants of the Y50 accession were immune or resistant to M.
enterolobii, indicating variability of reaction of plants to the nematode within the Psidium genus. The resistance of Psidium accessions to M. enterolobii needs to be measured with different inoculation levels to verify the existence of false-positive results, since the evaluated accessions, including the Paluma cultivar, presented distinct reactions regarding RF in the three levels of inoculation used. MenosMeloidogyne enterolobii associated with Fusarium solani causes the guava decay, which is the main factor of yield loss in guava crops and limits guava production in Brazil. Therefore, searching for guava genotypes (Psidium spp.) with resistance to M. enterolobii is important to control this root-knot nematode. The objective of the present work was to evaluate the reaction of Psidium spp. accessions from the Germplasm Bank of the Bahia State University (UNEB) to different levels of inoculation with M. enterolobii. Guava seedlings were inoculated with 600, 1,600, and 2,000 eggs + J2 second stage juveniles of M. enterolobii and the root fresh weight, total number of eggs (TNE), and reproduction factor (RF) were evaluated. The results were subjected to ANOVA and means were clustered using the Scott-Knott test at 5% probability. The diversity of accessions was estimated using the Tocher's clustering and UPGMA methods. The nematode RF reduced in some accessions with increasing inoculation levels of the nematode. However, the RF increased in some accessions with high levels of inoculation. Plants of the Y50 accession were immune or resistant to M.
enterolobii, indicating variability of reaction of plants to the nematode within the Psidium genus. The resistance of Psidium accessions to M. enterolobii needs to be measured with different inoculation levels to verify the existence of false-positive results, since the evaluated acce... Mostrar Tudo |
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Palavras-Chave: |
Meloidogyne enterolobii; Nematoide das galhas; Variabilidade genética. |
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Thesagro: |
Banco de Germoplasma; Doença; Goiaba; Nematóide. |
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Thesaurus Nal: |
Guavas; Psidium; Root-knot nematodes. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/200610/1/Reaction-of-2019.pdf
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Marc: |
LEADER 02573naa a2200313 a 4500
001 2111269
005 2019-12-02
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1590/1983 - 21252019v32n215rc$2DOI
100 1 $aOLIVEIRA, P. G. de
245 $aReaction of Psidium spp accessions to different levels of inoculation with Meloidogyne enterolobii.$h[electronic resource]
260 $c2019
520 $aMeloidogyne enterolobii associated with Fusarium solani causes the guava decay, which is the main factor of yield loss in guava crops and limits guava production in Brazil. Therefore, searching for guava genotypes (Psidium spp.) with resistance to M. enterolobii is important to control this root-knot nematode. The objective of the present work was to evaluate the reaction of Psidium spp. accessions from the Germplasm Bank of the Bahia State University (UNEB) to different levels of inoculation with M. enterolobii. Guava seedlings were inoculated with 600, 1,600, and 2,000 eggs + J2 second stage juveniles of M. enterolobii and the root fresh weight, total number of eggs (TNE), and reproduction factor (RF) were evaluated. The results were subjected to ANOVA and means were clustered using the Scott-Knott test at 5% probability. The diversity of accessions was estimated using the Tocher's clustering and UPGMA methods. The nematode RF reduced in some accessions with increasing inoculation levels of the nematode. However, the RF increased in some accessions with high levels of inoculation. Plants of the Y50 accession were immune or resistant to M. enterolobii, indicating variability of reaction of plants to the nematode within the Psidium genus. The resistance of Psidium accessions to M. enterolobii needs to be measured with different inoculation levels to verify the existence of false-positive results, since the evaluated accessions, including the Paluma cultivar, presented distinct reactions regarding RF in the three levels of inoculation used.
650 $aGuavas
650 $aPsidium
650 $aRoot-knot nematodes
650 $aBanco de Germoplasma
650 $aDoença
650 $aGoiaba
650 $aNematóide
653 $aMeloidogyne enterolobii
653 $aNematoide das galhas
653 $aVariabilidade genética
700 1 $aQUEIROZ, M. A. de
700 1 $aCASTRO, J. M. da C. e
700 1 $aRIBEIRO, J. M.
700 1 $aOLIVEIRA, R. S. de
700 1 $aSILVA, M. J. L. da
773 $tRevista Caatinga$gv. 32, n. 2, p. 419-428, abr./jun. 2019.
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Embrapa Semiárido (CPATSA) |
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| 1. |  | OLIVEIRA, P. G. de; QUEIROZ, M. A. de; CASTRO, J. M. da C. e; RIBEIRO, J. M.; OLIVEIRA, R. S. de; SILVA, M. J. L. da. Reaction of Psidium spp accessions to different levels of inoculation with Meloidogyne enterolobii. Revista Caatinga, v. 32, n. 2, p. 419-428, abr./jun. 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
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