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 | Acesso ao texto completo restrito à biblioteca da Epagri-Sede. Para informações adicionais entre em contato com biblio@epagri.sc.gov.br. |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
25/05/2005 |
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Data da última atualização: |
25/05/2005 |
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Autoria: |
SANTOS, F.M.; TRIANI, E.L. |
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Título: |
Crescimento de Isochrysis galbana parke em diferentes salinidades eintensidades de luz. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
In: SIMPOSIO BRASILEIRO DE AQUICULTURA, 11. ENCONTRO SULBRASILEIRO DE AQUICULTURA, 4. ENCONTRO CATARINENSE DE AQUICULTURA, 5. FESTIVAL NACIONAL DA OSTRA E DA CULTURA ACORIANA, 2, 2000, Florianopolis, SC. Anais... Florianopolis: BMLP, 2000. CD-ROM. |
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Idioma: |
Português |
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Conteúdo: |
Isochrysis galbana PARKE is a microalgae largely utilized in aquaculture mainly for mollusck hatcheries, because their contents of polyunsaturated fatty acids, which are very important for marine organisms nutrition. This paper describes I. galbana cultivated at two salinities (30 and 35 %º) under three kinds of light intensities (900, 1000 and 1200 LUX) to evaluate its growing. The factorial experiment was 3x2 had seven days with three repetition. Cels of I. galbana were counting daily to estimate cellular densities, growth velocity and time duplication in hours and day. There wasn't statistical significant differences among treatments (p>0,05) but cultures under 1200 LUX and 35? salinity growing much better than other tratments.
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Palavras-Chave: |
Alga; Crescimento; Intensidade luminosa; Isochrysis galbana; Salinidade. |
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Categoria do assunto: |
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Marc: |
LEADER 01477naa a2200193 a 4500
001 1036075
005 2005-05-25
008 2000 bl uuuu u00u1 u #d
100 1 $aSANTOS, F.M.
245 $aCrescimento de Isochrysis galbana parke em diferentes salinidades eintensidades de luz.
260 $c2000
520 $aIsochrysis galbana PARKE is a microalgae largely utilized in aquaculture mainly for mollusck hatcheries, because their contents of polyunsaturated fatty acids, which are very important for marine organisms nutrition. This paper describes I. galbana cultivated at two salinities (30 and 35 %º) under three kinds of light intensities (900, 1000 and 1200 LUX) to evaluate its growing. The factorial experiment was 3x2 had seven days with three repetition. Cels of I. galbana were counting daily to estimate cellular densities, growth velocity and time duplication in hours and day. There wasn't statistical significant differences among treatments (p>0,05) but cultures under 1200 LUX and 35? salinity growing much better than other tratments.
653 $aAlga
653 $aCrescimento
653 $aIntensidade luminosa
653 $aIsochrysis galbana
653 $aSalinidade
700 1 $aTRIANI, E.L.
773 $tIn: SIMPOSIO BRASILEIRO DE AQUICULTURA, 11. ENCONTRO SULBRASILEIRO DE AQUICULTURA, 4. ENCONTRO CATARINENSE DE AQUICULTURA, 5. FESTIVAL NACIONAL DA OSTRA E DA CULTURA ACORIANA, 2, 2000, Florianopolis, SC. Anais... Florianopolis: BMLP, 2000. CD-ROM.
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Epagri-Sede (Epagri-Sede) |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
05/09/2023 |
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Data da última atualização: |
06/09/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CANALE, M. C.; NESI, C. N.; CASTILHOS, R. V. |
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Título: |
Abundance of Dalbulus maidis and impact of maize rayado fino disease on different genotypes in field conditions in Santa Catarina, Brazil. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Tropical Plant Pathology, Viçosa, MG, v. 48, 2023. |
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Idioma: |
Inglês |
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Conteúdo: |
Corn stunt complex disease has been a major problem to maize production in Brazil. Dalbulus maidis incidence can vary greatly over the years, as well as the occurrence of corn stunt diseases. Among the corn stunt pathogens, the maize rayado fino virus (MRFV) is involved in this disease complex. MRFV is persistently transmitted by the corn leafhopper Dalbulus maidis (Hemiptera: Cicadellidae) in a persistent propagative relationship. In this work, we assessed the abundance of D. maidis and rayado fino in experimental field plots with a commercial hybrid (P4285 VYHR) and an open pollinated variety (SCS156 Colorado) in the early phase of the planting in the late-sowing season, in two consecutive crop years (2020?21 and 2021?22), in Chapecó, Santa Catarina (South Brazil). Also, we evaluated the incidence of rayado fino and counted corn leafhoppers that were infesting MRFV-symptomatic and asymptomatic plants. D. maidis did not sort between the two maize genotypes in field conditions, but preferentially infests asymptomatic plants. This could be an evidence for the vector manipulation to aid pathogen spread. Incidence of rayado fino is greater in P4285 than in Colorado in early vegetative stages of maize and impacted plant production in about 40%. Additionally, we evaluated the incidence of rayado fino in 18 commercial maize genotypes in a field plot experiment at 50 days after sowing in the early-sowing season of the 2022?23 crop year. These genotypes showed a differential incidence to the disease, which could be explored in breeding programs. Our results also support that the corn stunt complex pathosystem, with the rayado fino viral disease, is dynamic and unequal over the years. MenosCorn stunt complex disease has been a major problem to maize production in Brazil. Dalbulus maidis incidence can vary greatly over the years, as well as the occurrence of corn stunt diseases. Among the corn stunt pathogens, the maize rayado fino virus (MRFV) is involved in this disease complex. MRFV is persistently transmitted by the corn leafhopper Dalbulus maidis (Hemiptera: Cicadellidae) in a persistent propagative relationship. In this work, we assessed the abundance of D. maidis and rayado fino in experimental field plots with a commercial hybrid (P4285 VYHR) and an open pollinated variety (SCS156 Colorado) in the early phase of the planting in the late-sowing season, in two consecutive crop years (2020?21 and 2021?22), in Chapecó, Santa Catarina (South Brazil). Also, we evaluated the incidence of rayado fino and counted corn leafhoppers that were infesting MRFV-symptomatic and asymptomatic plants. D. maidis did not sort between the two maize genotypes in field conditions, but preferentially infests asymptomatic plants. This could be an evidence for the vector manipulation to aid pathogen spread. Incidence of rayado fino is greater in P4285 than in Colorado in early vegetative stages of maize and impacted plant production in about 40%. Additionally, we evaluated the incidence of rayado fino in 18 commercial maize genotypes in a field plot experiment at 50 days after sowing in the early-sowing season of the 2022?23 crop year. These genotypes showed a differential inciden... Mostrar Tudo |
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Thesagro: |
Corn stunt complex; Gompertz model; Logistic model; Maize production; nsect vector abundance; Resistance of maize genotypes. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02417naa a2200217 a 4500
001 1133607
005 2023-09-06
008 2023 bl uuuu u00u1 u #d
100 1 $aCANALE, M. C.
245 $aAbundance of Dalbulus maidis and impact of maize rayado fino disease on different genotypes in field conditions in Santa Catarina, Brazil.$h[electronic resource]
260 $c2023
520 $aCorn stunt complex disease has been a major problem to maize production in Brazil. Dalbulus maidis incidence can vary greatly over the years, as well as the occurrence of corn stunt diseases. Among the corn stunt pathogens, the maize rayado fino virus (MRFV) is involved in this disease complex. MRFV is persistently transmitted by the corn leafhopper Dalbulus maidis (Hemiptera: Cicadellidae) in a persistent propagative relationship. In this work, we assessed the abundance of D. maidis and rayado fino in experimental field plots with a commercial hybrid (P4285 VYHR) and an open pollinated variety (SCS156 Colorado) in the early phase of the planting in the late-sowing season, in two consecutive crop years (2020?21 and 2021?22), in Chapecó, Santa Catarina (South Brazil). Also, we evaluated the incidence of rayado fino and counted corn leafhoppers that were infesting MRFV-symptomatic and asymptomatic plants. D. maidis did not sort between the two maize genotypes in field conditions, but preferentially infests asymptomatic plants. This could be an evidence for the vector manipulation to aid pathogen spread. Incidence of rayado fino is greater in P4285 than in Colorado in early vegetative stages of maize and impacted plant production in about 40%. Additionally, we evaluated the incidence of rayado fino in 18 commercial maize genotypes in a field plot experiment at 50 days after sowing in the early-sowing season of the 2022?23 crop year. These genotypes showed a differential incidence to the disease, which could be explored in breeding programs. Our results also support that the corn stunt complex pathosystem, with the rayado fino viral disease, is dynamic and unequal over the years.
650 $aCorn stunt complex
650 $aGompertz model
650 $aLogistic model
650 $aMaize production
650 $ansect vector abundance
650 $aResistance of maize genotypes
700 1 $aNESI, C. N.
700 1 $aCASTILHOS, R. V.
773 $tTropical Plant Pathology, Viçosa, MG$gv. 48, 2023.
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