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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Meio-Norte. |
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Data corrente: |
19/09/2023 |
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Data da última atualização: |
26/09/2023 |
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Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
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Autoria: |
ATHAYDE SOBRINHO, C.; PEREIRA, J. A.; LOBO, V. L. da S.; SANTOS, A. R. B. |
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Afiliação: |
CANDIDO ATHAYDE SOBRINHO, CPAMN; JOSE ALMEIDA PEREIRA, CPAMN; VALACIA LEMES DA SILVA LOBO, CNPAF; ANANDA ROSA BESERRA SANTOS, UNIVERSIDADE FEDERAL DO PIAUÍ. |
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Título: |
Incidência de mancha-parda (Bipolaris oryzae) em arroz no estado do Piauí. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Teresina: Embrapa Meio-Norte, 2023. |
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Páginas: |
11 p. |
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Série: |
(Embrapa Meio-Norte. Comunicado técnico, 268). |
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Idioma: |
Português |
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Notas: |
ODS-2, ODS-12. |
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Conteúdo: |
O objetivo do trabalho foi confirmar a etiologia das manchas foliares verificadas no campo, a partir da confirmação da presença do patógeno nos grãos de arroz com sintomas típicos da mancha dos grãos causada por B. oryzae e avaliar a possibilidade de a doença ter sido introduzida na área a partir de sementes contaminadas. |
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Palavras-Chave: |
Piauí. |
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Thesagro: |
Arroz; Climatologia; Doença de Planta; Doença Fúngica; Epidemia; Mancha Foliar; Mancha Parda; Oryza Sativa. |
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Thesaurus Nal: |
Bipolaris oryzae; Fungal brown spot; Plant diseases and disorders; Rice. |
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Categoria do assunto: |
H Saúde e Patologia
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/256164/1/IncidenciaManchaPardaArrozEstadoPiauiCOT268.2023.pdf
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Marc: |
LEADER 01277nam a2200337 a 4500
001 2156789
005 2023-09-26
008 2023 bl uuuu u0uu1 u #d
100 1 $aATHAYDE SOBRINHO, C.
245 $aIncidência de mancha-parda (Bipolaris oryzae) em arroz no estado do Piauí.$h[electronic resource]
260 $aTeresina: Embrapa Meio-Norte$c2023
300 $a11 p.
490 $a(Embrapa Meio-Norte. Comunicado técnico, 268).
500 $aODS-2, ODS-12.
520 $aO objetivo do trabalho foi confirmar a etiologia das manchas foliares verificadas no campo, a partir da confirmação da presença do patógeno nos grãos de arroz com sintomas típicos da mancha dos grãos causada por B. oryzae e avaliar a possibilidade de a doença ter sido introduzida na área a partir de sementes contaminadas.
650 $aBipolaris oryzae
650 $aFungal brown spot
650 $aPlant diseases and disorders
650 $aRice
650 $aArroz
650 $aClimatologia
650 $aDoença de Planta
650 $aDoença Fúngica
650 $aEpidemia
650 $aMancha Foliar
650 $aMancha Parda
650 $aOryza Sativa
653 $aPiauí
700 1 $aPEREIRA, J. A.
700 1 $aLOBO, V. L. da S.
700 1 $aSANTOS, A. R. B.
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Registro original: |
Embrapa Meio-Norte (CPAMN) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
14/07/1998 |
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Data da última atualização: |
01/06/2009 |
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Autoria: |
FRANCA NETO, J. de B. |
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Afiliação: |
EMBRAPA-CNPSo. Londrina, PR. |
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Título: |
Response of hardseeded soybeans to combine harvest and artificial drying. |
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Ano de publicação: |
1978 |
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Fonte/Imprenta: |
Mississippi State: Mississippi State University. 1978. |
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Páginas: |
123p. |
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Idioma: |
Inglês |
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Notas: |
M.Sc. Thesis. |
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Conteúdo: |
This study compared the effects of mechanical harvest and artificial drying on seed quality of soybeans having permeable (Dare) and impermeable (D-1) coats. Seed were harvested by combine and hand as soon as possible after maturity and after four additional weeks of field wearhering. Only the mechanically harvested seed from the first harvest were used for the drying studies. The standard germination, TZ, accelerated aging and physical damage tests were used to evaluate the effects of the treatments on seed quality. Combine harvest reduced but didn't eliminate hard seed, unex-pectedly had no effect upon viability, but resulted in reduced vigor ratings. The percent undamaged seed was higher for the D-1 seed at both harvest dates, despite the fact these seed were 5.2% lower in moisture than the Dare on the second harvest. Delayed harvest lowered viability and vigor ratings of the Dare seed, but only vigor ratings of the D-1. Artificial drying the D-1 seed increased hard seed content but had no other immediate effects on quality. There was some indication of a direct relationships between seed coat permeability and rate of moisture loss. The conclusions were: a. Combine harvest of seed with the impermeable seed coat characteristic will reduce hard seed content to agronomically acceptable levels only when the seed are near 11% moisture content. b. Seeds with the impermeable seed coat are less susceptible to physical damage than those with permeable coats, although, this difference may not be attributable to differences in seed coat permeability. c. A four week delay in combine harvest resulted in increased physical damage and decreased vigor in both seed types but did not result in decreased viability of seed with the impermeable seed coat characteristic. d. Seed having permeable seed coats germinated faster than those possessing the impermeable characteristic, however, this difference was reduced by the effects of mechanical harvest. e. Artificially drying high moisture soybean seed possessing the impermeable coat characteristic resulted in a significant increase in hard seed content. MenosThis study compared the effects of mechanical harvest and artificial drying on seed quality of soybeans having permeable (Dare) and impermeable (D-1) coats. Seed were harvested by combine and hand as soon as possible after maturity and after four additional weeks of field wearhering. Only the mechanically harvested seed from the first harvest were used for the drying studies. The standard germination, TZ, accelerated aging and physical damage tests were used to evaluate the effects of the treatments on seed quality. Combine harvest reduced but didn't eliminate hard seed, unex-pectedly had no effect upon viability, but resulted in reduced vigor ratings. The percent undamaged seed was higher for the D-1 seed at both harvest dates, despite the fact these seed were 5.2% lower in moisture than the Dare on the second harvest. Delayed harvest lowered viability and vigor ratings of the Dare seed, but only vigor ratings of the D-1. Artificial drying the D-1 seed increased hard seed content but had no other immediate effects on quality. There was some indication of a direct relationships between seed coat permeability and rate of moisture loss. The conclusions were: a. Combine harvest of seed with the impermeable seed coat characteristic will reduce hard seed content to agronomically acceptable levels only when the seed are near 11% moisture content. b. Seeds with the impermeable seed coat are less susceptible to physical damage than those with permeable coats, although, this differen... Mostrar Tudo |
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Palavras-Chave: |
Artificial drying; EUA; Hardseeded soybean; Harvest; Semente dura; USA. |
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Thesagro: |
Colheita; Secagem Artificial; Soja. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02757nam a2200241 a 4500
001 1444354
005 2009-06-01
008 1978 bl uuuu m 00u1 u #d
100 1 $aFRANCA NETO, J. de B.
245 $aResponse of hardseeded soybeans to combine harvest and artificial drying.
260 $aMississippi State: Mississippi State University. 1978.$c1978
300 $a123p.
500 $aM.Sc. Thesis.
520 $aThis study compared the effects of mechanical harvest and artificial drying on seed quality of soybeans having permeable (Dare) and impermeable (D-1) coats. Seed were harvested by combine and hand as soon as possible after maturity and after four additional weeks of field wearhering. Only the mechanically harvested seed from the first harvest were used for the drying studies. The standard germination, TZ, accelerated aging and physical damage tests were used to evaluate the effects of the treatments on seed quality. Combine harvest reduced but didn't eliminate hard seed, unex-pectedly had no effect upon viability, but resulted in reduced vigor ratings. The percent undamaged seed was higher for the D-1 seed at both harvest dates, despite the fact these seed were 5.2% lower in moisture than the Dare on the second harvest. Delayed harvest lowered viability and vigor ratings of the Dare seed, but only vigor ratings of the D-1. Artificial drying the D-1 seed increased hard seed content but had no other immediate effects on quality. There was some indication of a direct relationships between seed coat permeability and rate of moisture loss. The conclusions were: a. Combine harvest of seed with the impermeable seed coat characteristic will reduce hard seed content to agronomically acceptable levels only when the seed are near 11% moisture content. b. Seeds with the impermeable seed coat are less susceptible to physical damage than those with permeable coats, although, this difference may not be attributable to differences in seed coat permeability. c. A four week delay in combine harvest resulted in increased physical damage and decreased vigor in both seed types but did not result in decreased viability of seed with the impermeable seed coat characteristic. d. Seed having permeable seed coats germinated faster than those possessing the impermeable characteristic, however, this difference was reduced by the effects of mechanical harvest. e. Artificially drying high moisture soybean seed possessing the impermeable coat characteristic resulted in a significant increase in hard seed content.
650 $aColheita
650 $aSecagem Artificial
650 $aSoja
653 $aArtificial drying
653 $aEUA
653 $aHardseeded soybean
653 $aHarvest
653 $aSemente dura
653 $aUSA
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Embrapa Soja (CNPSO) |
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