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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
29/06/2007 |
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Data da última atualização: |
03/01/2024 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
NOGUEIRA, M. S. R.; FREIRE FILHO, F. R.; PEREIRA, R. C.; SANTOS, J. R. S.; FIGUEIREDO, D. V.; BRIOSO, P. S. T. |
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Título: |
Resistência ao Cowpea severe mosaic virus sorotipo I em linhagens de feijão-caupi, oriundas do Piauí. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
In: CONGRESSO NACIONAL DE FEIJÃO-CAUPI, 1.; REUNIÃO NACIONAL DE FEIJÃO-CAUPI, 6., 2006, Teresina. Tecnologias para o agronegócio: anais. Teresina: Embrapa Meio-Norte, 2006. |
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Descrição Física: |
1 CD-ROM. |
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Série: |
(Embrapa Meio-Norte. Documentos, 121). |
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Idioma: |
Português |
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Conteúdo: |
Entre os vírus que infectam o feijão-caupi (Vigna unguiculata (L.) Walp.) destaca-se o CPSMV (Cowpea severe mosaic virus), causando perdas consideráveis na produção. Com o objetivo de testar linhagens de feijão-caupi contra o CPSMV sorotipo I para obter genótipos resistentes foram realizados testes biológicos e moleculares. O isolado viral foi coletado em plantas de feijão-caupi naturalmente infectadas e mantidas em casa de vegetação na linhagem IT89D-200-49 (indicadora do CPSMV sorotipo I) e na cv. Costelão (suscetível ao vírus). Dez dias após a inoculação das linhagens foram observados os sintomas e, extratos das plantas aparentemente sadias inoculadas na cv. Costelão, a fim de detectar possível infecção latente. Os testes biológicos confirmaram a resistência das linhagens MNC 99-508 F-12, MNC 99-510 G-7 e MNC 99-510 F-16 ao CPSMV sorotipo I. O produto amplificado por RT-PCR revelou após a eletroforese uma banda de 592 pb e os dados da análise das seqüências confirmaram uma similaridade de 89 % do isolado com o CPSMV. Essas linhagens resistentes abrem perspectivas para a obtenção de novas cultivares resistentes com boas características agronômicas e potencial para elevar a produtividade da cultura. |
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Palavras-Chave: |
Resistência a vírus. |
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Thesagro: |
Vigna Unguiculata; Vírus. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/61804/1/FS10.pdf
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Marc: |
LEADER 02103nam a2200229 a 4500
001 1068738
005 2024-01-03
008 2006 bl uuuu u00u1 u #d
100 1 $aNOGUEIRA, M. S. R.
245 $aResistência ao Cowpea severe mosaic virus sorotipo I em linhagens de feijão-caupi, oriundas do Piauí.$h[electronic resource]
260 $aIn: CONGRESSO NACIONAL DE FEIJÃO-CAUPI, 1.; REUNIÃO NACIONAL DE FEIJÃO-CAUPI, 6., 2006, Teresina. Tecnologias para o agronegócio: anais. Teresina: Embrapa Meio-Norte$c2006
300 $c1 CD-ROM.
490 $a(Embrapa Meio-Norte. Documentos, 121).
520 $aEntre os vírus que infectam o feijão-caupi (Vigna unguiculata (L.) Walp.) destaca-se o CPSMV (Cowpea severe mosaic virus), causando perdas consideráveis na produção. Com o objetivo de testar linhagens de feijão-caupi contra o CPSMV sorotipo I para obter genótipos resistentes foram realizados testes biológicos e moleculares. O isolado viral foi coletado em plantas de feijão-caupi naturalmente infectadas e mantidas em casa de vegetação na linhagem IT89D-200-49 (indicadora do CPSMV sorotipo I) e na cv. Costelão (suscetível ao vírus). Dez dias após a inoculação das linhagens foram observados os sintomas e, extratos das plantas aparentemente sadias inoculadas na cv. Costelão, a fim de detectar possível infecção latente. Os testes biológicos confirmaram a resistência das linhagens MNC 99-508 F-12, MNC 99-510 G-7 e MNC 99-510 F-16 ao CPSMV sorotipo I. O produto amplificado por RT-PCR revelou após a eletroforese uma banda de 592 pb e os dados da análise das seqüências confirmaram uma similaridade de 89 % do isolado com o CPSMV. Essas linhagens resistentes abrem perspectivas para a obtenção de novas cultivares resistentes com boas características agronômicas e potencial para elevar a produtividade da cultura.
650 $aVigna Unguiculata
650 $aVírus
653 $aResistência a vírus
700 1 $aFREIRE FILHO, F. R.
700 1 $aPEREIRA, R. C.
700 1 $aSANTOS, J. R. S.
700 1 $aFIGUEIREDO, D. V.
700 1 $aBRIOSO, P. S. T.
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Registro original: |
Embrapa Meio-Norte (CPAMN) |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
18/12/2018 |
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Data da última atualização: |
29/12/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 3 |
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Autoria: |
MAY, A.; RAMOS, N. P.; SANTOS, M. S. dos; SILVA, E. H. F. M. da; ROSSI, P.; VIANA, R. da S. |
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Afiliação: |
ANDRE MAY, CNPMA; NILZA PATRICIA RAMOS, CNPMA; MICHELLI DE SOUZA DOS SANTOS, CAPES; EVANDRO HENRIQUE FIGUEIREDO MOURA DA SILVA, ESALQ-USP; PAULO ROSSI, CNPMA; RONALDO DA SILVA VIANA, FCAT-UNESP. |
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Título: |
Pre-sprouted seedlings production methods through buds or mini-stems: emergence and initial development of sugarcane cultivars. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Científica, v. 46, n. 4, p. 403-411, 2018. |
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ISSN: |
1984-5229 |
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DOI: |
http://dx.doi.org/10.15361/1984-5529.2018v46n4p403-411 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: This study evaluates the emergence and initial development of sugarcane cultivars with different bud sizes, based on the system of pre-sprouted seedlings (PSS). Early sugarcane cultivars (RB966928, RB855156 and IACSP91-1099) were evaluated. These evaluations comprised three positions of the sugarcane stem (tip, middle and base) and four types of sugarcane propagules (mini-stem and 3 bud sizes with different diameters: 22 mm (1), 29 mm (2) and 35 mm (3)). Three trials were performed, each with a different cultivar. The experimental design for each cultivar was a randomized block in a 3x4 factorial scheme (stem position x propagule size (vegetative material)) with 4 replicates. Emergence was evaluated daily, and from these evaluations the emergence speed index (ESI) was calculated. Plant height, shoot dry mass and root dry mass were also assessed. Data were submitted to analysis of variance with interaction, and the Tukey test was applied. When simple variable transformations were not enough to meet the assumptions of normality and homoscedasticity, the non-parametric Friedman test was used. ESI indicated that the best type of propagule was the mini-stem, and for cultivars IACSP91-1099 and RB855156 the best performing position was the tip. The Friedman test indicated significance of the causes of variation related to propagule size and stem position for shoot dry mass in all evaluated cultivars. In addition, the test indicated significant variation of root dry mass for cultivars IAC91-1099 and RB966928 between propagule sizes and the stem positions. The height of cultivar IACSP91-1099 showed interaction between the different propagule sizes and stem positions. The greatest increase of height in sugarcane seedlings occurred for the mini--stem propagule and tip position. Cultivars RB855156 and RB966928 also showed interaction between the different propagule sizes and stem positions. Cultivar RB855156 showed the highest plant height with the mini- -stem propagule at the tip position, however it did not differ statistically from the propagule with size 3 at the tip and middle positions. The mini-stem and the bud with size 3, removed from the tip of the stem, are the best alter-natives for seedling production. MenosAbstract: This study evaluates the emergence and initial development of sugarcane cultivars with different bud sizes, based on the system of pre-sprouted seedlings (PSS). Early sugarcane cultivars (RB966928, RB855156 and IACSP91-1099) were evaluated. These evaluations comprised three positions of the sugarcane stem (tip, middle and base) and four types of sugarcane propagules (mini-stem and 3 bud sizes with different diameters: 22 mm (1), 29 mm (2) and 35 mm (3)). Three trials were performed, each with a different cultivar. The experimental design for each cultivar was a randomized block in a 3x4 factorial scheme (stem position x propagule size (vegetative material)) with 4 replicates. Emergence was evaluated daily, and from these evaluations the emergence speed index (ESI) was calculated. Plant height, shoot dry mass and root dry mass were also assessed. Data were submitted to analysis of variance with interaction, and the Tukey test was applied. When simple variable transformations were not enough to meet the assumptions of normality and homoscedasticity, the non-parametric Friedman test was used. ESI indicated that the best type of propagule was the mini-stem, and for cultivars IACSP91-1099 and RB855156 the best performing position was the tip. The Friedman test indicated significance of the causes of variation related to propagule size and stem position for shoot dry mass in all evaluated cultivars. In addition, the test indicated significant variation of root dry mass f... Mostrar Tudo |
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Palavras-Chave: |
MPB; PSS; Saccharum spp. |
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Thesagro: |
Brotacao; Cana de Açúcar; Germinação; Propagação Vegetativa. |
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Thesaurus NAL: |
Germination; Saccharum; Sugarcane; Vegetative propagation. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/188828/1/2018AP44.pdf
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Marc: |
LEADER 03240naa a2200337 a 4500
001 2101985
005 2018-12-29
008 2018 bl uuuu u00u1 u #d
022 $a1984-5229
024 7 $ahttp://dx.doi.org/10.15361/1984-5529.2018v46n4p403-411$2DOI
100 1 $aMAY, A.
245 $aPre-sprouted seedlings production methods through buds or mini-stems$bemergence and initial development of sugarcane cultivars.$h[electronic resource]
260 $c2018
520 $aAbstract: This study evaluates the emergence and initial development of sugarcane cultivars with different bud sizes, based on the system of pre-sprouted seedlings (PSS). Early sugarcane cultivars (RB966928, RB855156 and IACSP91-1099) were evaluated. These evaluations comprised three positions of the sugarcane stem (tip, middle and base) and four types of sugarcane propagules (mini-stem and 3 bud sizes with different diameters: 22 mm (1), 29 mm (2) and 35 mm (3)). Three trials were performed, each with a different cultivar. The experimental design for each cultivar was a randomized block in a 3x4 factorial scheme (stem position x propagule size (vegetative material)) with 4 replicates. Emergence was evaluated daily, and from these evaluations the emergence speed index (ESI) was calculated. Plant height, shoot dry mass and root dry mass were also assessed. Data were submitted to analysis of variance with interaction, and the Tukey test was applied. When simple variable transformations were not enough to meet the assumptions of normality and homoscedasticity, the non-parametric Friedman test was used. ESI indicated that the best type of propagule was the mini-stem, and for cultivars IACSP91-1099 and RB855156 the best performing position was the tip. The Friedman test indicated significance of the causes of variation related to propagule size and stem position for shoot dry mass in all evaluated cultivars. In addition, the test indicated significant variation of root dry mass for cultivars IAC91-1099 and RB966928 between propagule sizes and the stem positions. The height of cultivar IACSP91-1099 showed interaction between the different propagule sizes and stem positions. The greatest increase of height in sugarcane seedlings occurred for the mini--stem propagule and tip position. Cultivars RB855156 and RB966928 also showed interaction between the different propagule sizes and stem positions. Cultivar RB855156 showed the highest plant height with the mini- -stem propagule at the tip position, however it did not differ statistically from the propagule with size 3 at the tip and middle positions. The mini-stem and the bud with size 3, removed from the tip of the stem, are the best alter-natives for seedling production.
650 $aGermination
650 $aSaccharum
650 $aSugarcane
650 $aVegetative propagation
650 $aBrotacao
650 $aCana de Açúcar
650 $aGerminação
650 $aPropagação Vegetativa
653 $aMPB
653 $aPSS
653 $aSaccharum spp
700 1 $aRAMOS, N. P.
700 1 $aSANTOS, M. S. dos
700 1 $aSILVA, E. H. F. M. da
700 1 $aROSSI, P.
700 1 $aVIANA, R. da S.
773 $tCientífica$gv. 46, n. 4, p. 403-411, 2018.
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Embrapa Meio Ambiente (CNPMA) |
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