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Registro Completo |
Biblioteca(s): |
Embrapa Soja. |
Data corrente: |
14/07/1998 |
Data da última atualização: |
01/06/2009 |
Autoria: |
FRANCA NETO, J. de B. |
Afiliação: |
EMBRAPA-CNPSo. Londrina, PR. |
Título: |
Response of hardseeded soybeans to combine harvest and artificial drying. |
Ano de publicação: |
1978 |
Fonte/Imprenta: |
Mississippi State: Mississippi State University. 1978. |
Páginas: |
123p. |
Idioma: |
Inglês |
Notas: |
M.Sc. Thesis. |
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 |
Palavras-Chave: |
Artificial drying; EUA; Hardseeded soybean; Harvest; Semente dura; USA. |
Thesagro: |
Colheita; Secagem Artificial; Soja. |
Categoria do assunto: |
-- |
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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Registro Completo
Biblioteca(s): |
Embrapa Gado de Corte. |
Data corrente: |
21/01/2013 |
Data da última atualização: |
15/02/2013 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 4 |
Autoria: |
ANDRADE, A. R. O.; DORVA, M. E. M. C.; ANDRADE, S. M. O. de; MARQUES, A.; SILVA, B. A. K. da; ANDREOTTI, R. |
Afiliação: |
ANA RACHEL OLIVEIRA DE ANDRADE, Post Graduate Program in Infectious and Parasitary Diseases. Federal University of Mato Grosso do Sul; MARIA ELIZABETH MORAES CAVALHEIROS DORVA, Post Graduate Program in Infectious and Parasitary Diseases. Federal University of Mato Grosso do Sul; SONIA MARIA OLIVEIRA DE ANDRADE, Post Graduate Program in Infectious and Parasitary Diseases. Federal University of Mato Grosso do Sul; ALISSON MARQUES, Zoonosis Control Center, Municipal Secretariat Health of Ponta Porã, MS; BALDOMERO ANTONIO KATO DA SILVA, Post Graduate Program in Health and Development of the Central West Region. Federal University of Mato Grosso do Sul. Associated Professor of Federal University of Piaui; RENATO ANDREOTTI, CNPGC. |
Título: |
Phlebotomine fauna in the Ponta Porã city: epidemiological importance in border line between Brazil and Paraguay. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
Asian Pacific Journal of Tropical Disease, v. 2, n. 5, p. 362-366, Oct. 2012. |
Idioma: |
Inglês |
Palavras-Chave: |
Vsaencdtoflry e fcaoulnoagy visceral leishmaniasis. |
Thesagro: |
Sanidade Animal. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00689naa a2200193 a 4500 001 1945882 005 2013-02-15 008 2012 bl uuuu u00u1 u #d 100 1 $aANDRADE, A. R. O. 245 $aPhlebotomine fauna in the Ponta Porã city$bepidemiological importance in border line between Brazil and Paraguay.$h[electronic resource] 260 $c2012 650 $aSanidade Animal 653 $aVsaencdtoflry e fcaoulnoagy visceral leishmaniasis 700 1 $aDORVA, M. E. M. C. 700 1 $aANDRADE, S. M. O. de 700 1 $aMARQUES, A. 700 1 $aSILVA, B. A. K. da 700 1 $aANDREOTTI, R. 773 $tAsian Pacific Journal of Tropical Disease$gv. 2, n. 5, p. 362-366, Oct. 2012.
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