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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
04/05/2018 |
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Data da última atualização: |
09/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA, R. R. C. de; SANTOS, C. A. F.; COSTA, S. R. da. |
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Afiliação: |
R. R. CANDIDO DE SOUZA, Universidade Estadual de Feira de Santana; CARLOS ANTONIO FERNANDES SANTOS, CPATSA; S. RODRIGUES DA COSTA, Universidade Estadual de Feira de Santana. |
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Título: |
Field resistance to Meloidogyne enterolobii in a Psidium guajava × P. guineense hybrid and its compatibility as guava rootstock. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Fruits, v. 73, n. 2, p. 118-124, 2018. |
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ISSN: |
0248-1294 |
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DOI: |
10.17660/th2018/73.2.4 |
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Idioma: |
Inglês |
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Conteúdo: |
The objectives of this study were to evaluate resistance to Meloidogyne enterolobii in a Psidium hybrid and its compatibility as rootstock for two guava cultivars in order to be commercially released. Materials and methods ? The treatments consisted of guava cv. Paluma scions without grafting, hybrid scions without grafting, and hybrid scions as rootstock for ?Paluma? and ?Pedro-Sato? guava cultivars. The number of eggs and juveniles of M. enterolobii in the soil and roots, guava decline symptoms, plant architecture, and fruit production were evaluated up to 24 months after transplanting (MAT). Results and discussion ? The infestation by eggs and juveniles in the roots of ?Paluma? differed from infestation in the roots of the hybrid in five evaluation times, except at 6 MAT. The highest infestation by juveniles in the roots for all treatments occurred at 24 MAT, when the magnitude of the infestation in ?Paluma? was almost 540 times higher than the average infestation of the hybrid. The guava cultivars grafted onto the hybrid had fruit yield of approximately 40 t ha-1 at 30 MAT,which was 10 times higher than that of the cv. Paluma without grafting. Stem diameter and canopy width were higher (P<0.01) for the cultivars grafted onto the hybrid compared to the ?Paluma? scion. conclusion ? Guava decline symptoms in ?Paluma? without grafting ranged from severe to plant death, whereas only one plant of the hybrid had moderate guava decline. The hybrid has proved to be resistant to the pathogen and showed excellent compatibility as rootstock for guava cultivars; it should be used as an alternative management practice for preventing damage from this nematode. MenosThe objectives of this study were to evaluate resistance to Meloidogyne enterolobii in a Psidium hybrid and its compatibility as rootstock for two guava cultivars in order to be commercially released. Materials and methods ? The treatments consisted of guava cv. Paluma scions without grafting, hybrid scions without grafting, and hybrid scions as rootstock for ?Paluma? and ?Pedro-Sato? guava cultivars. The number of eggs and juveniles of M. enterolobii in the soil and roots, guava decline symptoms, plant architecture, and fruit production were evaluated up to 24 months after transplanting (MAT). Results and discussion ? The infestation by eggs and juveniles in the roots of ?Paluma? differed from infestation in the roots of the hybrid in five evaluation times, except at 6 MAT. The highest infestation by juveniles in the roots for all treatments occurred at 24 MAT, when the magnitude of the infestation in ?Paluma? was almost 540 times higher than the average infestation of the hybrid. The guava cultivars grafted onto the hybrid had fruit yield of approximately 40 t ha-1 at 30 MAT,which was 10 times higher than that of the cv. Paluma without grafting. Stem diameter and canopy width were higher (P<0.01) for the cultivars grafted onto the hybrid compared to the ?Paluma? scion. conclusion ? Guava decline symptoms in ?Paluma? without grafting ranged from severe to plant death, whereas only one plant of the hybrid had moderate guava decline. The hybrid has proved to be resistant to t... Mostrar Tudo |
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Palavras-Chave: |
Nematoide das galhas; Resistência a pragas. |
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Thesagro: |
Análise de Risco de Pragas; Fruta Tropical; Goiaba; Hibrido; Meloidogyne spp; Nematóide; Porta Enxerto; Resistência. |
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Thesaurus Nal: |
Fruit yield; Grafting (plants); Guavas; Meloidogyne; Pest resistance; Psidium; Root-knot nematodes. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02753naa a2200373 a 4500
001 2091146
005 2023-01-09
008 2018 bl uuuu u00u1 u #d
022 $a0248-1294
024 7 $a10.17660/th2018/73.2.4$2DOI
100 1 $aSOUZA, R. R. C. de
245 $aField resistance to Meloidogyne enterolobii in a Psidium guajava × P. guineense hybrid and its compatibility as guava rootstock.$h[electronic resource]
260 $c2018
520 $aThe objectives of this study were to evaluate resistance to Meloidogyne enterolobii in a Psidium hybrid and its compatibility as rootstock for two guava cultivars in order to be commercially released. Materials and methods ? The treatments consisted of guava cv. Paluma scions without grafting, hybrid scions without grafting, and hybrid scions as rootstock for ?Paluma? and ?Pedro-Sato? guava cultivars. The number of eggs and juveniles of M. enterolobii in the soil and roots, guava decline symptoms, plant architecture, and fruit production were evaluated up to 24 months after transplanting (MAT). Results and discussion ? The infestation by eggs and juveniles in the roots of ?Paluma? differed from infestation in the roots of the hybrid in five evaluation times, except at 6 MAT. The highest infestation by juveniles in the roots for all treatments occurred at 24 MAT, when the magnitude of the infestation in ?Paluma? was almost 540 times higher than the average infestation of the hybrid. The guava cultivars grafted onto the hybrid had fruit yield of approximately 40 t ha-1 at 30 MAT,which was 10 times higher than that of the cv. Paluma without grafting. Stem diameter and canopy width were higher (P<0.01) for the cultivars grafted onto the hybrid compared to the ?Paluma? scion. conclusion ? Guava decline symptoms in ?Paluma? without grafting ranged from severe to plant death, whereas only one plant of the hybrid had moderate guava decline. The hybrid has proved to be resistant to the pathogen and showed excellent compatibility as rootstock for guava cultivars; it should be used as an alternative management practice for preventing damage from this nematode.
650 $aFruit yield
650 $aGrafting (plants)
650 $aGuavas
650 $aMeloidogyne
650 $aPest resistance
650 $aPsidium
650 $aRoot-knot nematodes
650 $aAnálise de Risco de Pragas
650 $aFruta Tropical
650 $aGoiaba
650 $aHibrido
650 $aMeloidogyne spp
650 $aNematóide
650 $aPorta Enxerto
650 $aResistência
653 $aNematoide das galhas
653 $aResistência a pragas
700 1 $aSANTOS, C. A. F.
700 1 $aCOSTA, S. R. da
773 $tFruits$gv. 73, n. 2, p. 118-124, 2018.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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