| |
|
|
| Registros recuperados : 119 | |
| 51. |  | PEREIRA, J. C. R.; ARAÚJO, J. C. A.; GASPAROTTO, L.; NASCIMENTO FILHO, F. J. Avaliação da reação de genótipos de guaranazeiro à mancha concêntrica. Summa Phytopathologica, Botucatu, v. 34, p. S.16, 2008. Suplemento. Edição dos Resumos do 31. Congresso Paulista de Fitopatologia, Campinas, fev. 2008. Resumo 025.| Biblioteca(s): Embrapa Amazônia Ocidental. |
|    |
| 53. | | ARAÚJO, J. C. A. de; GASPAROTTO, L.; GARCIA, M. V. B. Epidemiologia de Pestalotiopsis spp em dendezeiro. In: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 24., 1991, Rio de Janeiro. Resumos... Fitopatologia Brasileira, v. 16, n. 2, p. XXXIII, jun. 1991.| Biblioteca(s): Embrapa Amazônia Ocidental. |
| |
| 56. | | ARAUJO, J. C. A. de; PEREIRA, J. C. R.; GASPAROTTO, L.; ARRUDA, M. R. de. Reação de genótipos de guaranazeiro à antracnose no Amazonas. In: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 41., 2008, Belo Horizonte. Fitopatologia - novos horizontes. Tropical Plant Pathology, v. 33, S305, ago. 2008. Suplemento.| Biblioteca(s): Embrapa Amazônia Ocidental. |
| |
| Registros recuperados : 119 | |
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Semiárido. |
|
Data corrente: |
26/04/2012 |
|
Data da última atualização: |
10/10/2023 |
|
Tipo da produção científica: |
Resumo em Anais de Congresso |
|
Autoria: |
CASTRO, J. M. da C. e; SANTOS, C. A. F.; FLORI, J. E. |
|
Afiliação: |
JOSE MAURO DA CUNHA E CASTRO, CPATSA; CARLOS ANTONIO FERNANDES SANTOS, CPATSA; JOSE EGIDIO FLORI, CPATSA. |
|
Título: |
Reaction of Psidium accessions to the nematode Meloidogyne enterolobii. |
|
Ano de publicação: |
2012 |
|
Fonte/Imprenta: |
In: INTERNATIONAL SYMPOSIUM ON GUAVA AND OTHER MYRTACEAE, 3., 2012, Petrolina. Abstracts... Petrolina: Embrapa Semiárido, 2012. |
|
Páginas: |
p. 36. |
|
Série: |
(Embrapa Semiárido. Documentos, 247). |
|
Idioma: |
Inglês |
|
Conteúdo: |
Brazil was the 7th world guava producer in 2008, producing 298,798 ton in 15,641 ha. However, the presence of the root-knot nematode, Meloidogyne enterolobii, has been caused severe loss to guava growers. From 2001 to 2008 it was estimated a direct economical loss of around 70 million dollars and 3,703 unemployment of workers in five Brazilian States, due the attack of this pest. Based on this, it was evaluated 146 Psidium accessions, guava and araçazeiros from ten Brazilian States, in greenhouse and nursery conditions in order to find out resistant accessions to be used as rootstock of commercial guava cultivars. At greenhouse, plants with 15 to 20 cm height were inoculated with 10,000 nematode eggs, in an experimental incomplete block design, with five to ten replications. Under field nursery conditions, after seed germination, the plants were transferred to plastic bags with nematode contaminated soil. After five months of inoculation, the greenhouse accessions were evaluated for nematode damage according to presence of root gall or egg mass scale: 0 = no root galls or egg masses, 1 = 1-2, 2 = 3-10, 3 = 11-30, 4 = 31-100, and 5 = more than 100 root galls or egg masses. A reproductive factor (RF) was estimated and the accessions classified as resistant or susceptible. The plants grown at field nursery were visually evaluated for the presence of root galls after five months of transplanting to plastic bag. A total of sixty-six Psidium, including fourteen araçazeiro and fifty-two guava accessions, were evaluated at field nursery conditions. Among the araçazeiros, two were classified as resistant, and another presented segregation to the tolerance to nematode. All guava accessions were susceptible in both evaluation conditions. Among the nineteen araçazeiro accessions evaluated in greenhouse, three were resistant to the nematode (RF < 1) and nine were immune (FR = 0). A further investigation performed among some tolerant araçazeiros accessions collected in the Brazilian sub tropical region (South), it was observed a poor plant development in the semiarid region of Northeast Brazil and low grafting compatibility with commercial guava cultivars. The current strategy to overcome this guava pest include the development of inter specific Psidium hybrids among olerant araçazeiros and susceptible guava in order to obtain hybrids with adequate plant height and stem diameter, highly compatible when used as rootstock of commercial guava cultivars. MenosBrazil was the 7th world guava producer in 2008, producing 298,798 ton in 15,641 ha. However, the presence of the root-knot nematode, Meloidogyne enterolobii, has been caused severe loss to guava growers. From 2001 to 2008 it was estimated a direct economical loss of around 70 million dollars and 3,703 unemployment of workers in five Brazilian States, due the attack of this pest. Based on this, it was evaluated 146 Psidium accessions, guava and araçazeiros from ten Brazilian States, in greenhouse and nursery conditions in order to find out resistant accessions to be used as rootstock of commercial guava cultivars. At greenhouse, plants with 15 to 20 cm height were inoculated with 10,000 nematode eggs, in an experimental incomplete block design, with five to ten replications. Under field nursery conditions, after seed germination, the plants were transferred to plastic bags with nematode contaminated soil. After five months of inoculation, the greenhouse accessions were evaluated for nematode damage according to presence of root gall or egg mass scale: 0 = no root galls or egg masses, 1 = 1-2, 2 = 3-10, 3 = 11-30, 4 = 31-100, and 5 = more than 100 root galls or egg masses. A reproductive factor (RF) was estimated and the accessions classified as resistant or susceptible. The plants grown at field nursery were visually evaluated for the presence of root galls after five months of transplanting to plastic bag. A total of sixty-six Psidium, including fourteen araçazeiro and fift... Mostrar Tudo |
|
Palavras-Chave: |
Acesso; Enxertia; Meloidogyne enterolobii; Nematoide das galhas. |
|
Thesagro: |
Araçá; Goiaba; Nematóide. |
|
Thesaurus NAL: |
Guavas. |
|
Categoria do assunto: |
H Saúde e Patologia |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/58392/1/CArlos-Antonio-2012.pdf
|
|
Marc: |
LEADER 03282nam a2200253 a 4500
001 1923213
005 2023-10-10
008 2012 bl uuuu u00u1 u #d
100 1 $aCASTRO, J. M. da C. e
245 $aReaction of Psidium accessions to the nematode Meloidogyne enterolobii.$h[electronic resource]
260 $aIn: INTERNATIONAL SYMPOSIUM ON GUAVA AND OTHER MYRTACEAE, 3., 2012, Petrolina. Abstracts... Petrolina: Embrapa Semiárido$c2012
300 $ap. 36.
490 $a(Embrapa Semiárido. Documentos, 247).
520 $aBrazil was the 7th world guava producer in 2008, producing 298,798 ton in 15,641 ha. However, the presence of the root-knot nematode, Meloidogyne enterolobii, has been caused severe loss to guava growers. From 2001 to 2008 it was estimated a direct economical loss of around 70 million dollars and 3,703 unemployment of workers in five Brazilian States, due the attack of this pest. Based on this, it was evaluated 146 Psidium accessions, guava and araçazeiros from ten Brazilian States, in greenhouse and nursery conditions in order to find out resistant accessions to be used as rootstock of commercial guava cultivars. At greenhouse, plants with 15 to 20 cm height were inoculated with 10,000 nematode eggs, in an experimental incomplete block design, with five to ten replications. Under field nursery conditions, after seed germination, the plants were transferred to plastic bags with nematode contaminated soil. After five months of inoculation, the greenhouse accessions were evaluated for nematode damage according to presence of root gall or egg mass scale: 0 = no root galls or egg masses, 1 = 1-2, 2 = 3-10, 3 = 11-30, 4 = 31-100, and 5 = more than 100 root galls or egg masses. A reproductive factor (RF) was estimated and the accessions classified as resistant or susceptible. The plants grown at field nursery were visually evaluated for the presence of root galls after five months of transplanting to plastic bag. A total of sixty-six Psidium, including fourteen araçazeiro and fifty-two guava accessions, were evaluated at field nursery conditions. Among the araçazeiros, two were classified as resistant, and another presented segregation to the tolerance to nematode. All guava accessions were susceptible in both evaluation conditions. Among the nineteen araçazeiro accessions evaluated in greenhouse, three were resistant to the nematode (RF < 1) and nine were immune (FR = 0). A further investigation performed among some tolerant araçazeiros accessions collected in the Brazilian sub tropical region (South), it was observed a poor plant development in the semiarid region of Northeast Brazil and low grafting compatibility with commercial guava cultivars. The current strategy to overcome this guava pest include the development of inter specific Psidium hybrids among olerant araçazeiros and susceptible guava in order to obtain hybrids with adequate plant height and stem diameter, highly compatible when used as rootstock of commercial guava cultivars.
650 $aGuavas
650 $aAraçá
650 $aGoiaba
650 $aNematóide
653 $aAcesso
653 $aEnxertia
653 $aMeloidogyne enterolobii
653 $aNematoide das galhas
700 1 $aSANTOS, C. A. F.
700 1 $aFLORI, J. E.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Semiárido (CPATSA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
