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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
04/12/1997 |
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Data da última atualização: |
04/12/1997 |
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Autoria: |
DIAS, M. C. L. de L.; SILVA, W. R. da. |
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Título: |
Determinacao da viabilidade de sementes de cafe atraves do teste de tetrazolio. |
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Ano de publicação: |
1986 |
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Fonte/Imprenta: |
Pesquisa Agropecuaria Brasileira, Brasilia, v.21, n.11, p.1139-1145, nov. 1986. |
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Idioma: |
Português |
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Conteúdo: |
As sementes de cafe (Coffea arabica L.) perdem rapidamente sua qualidade fisiologica, ao mesmo tempo em que exigem que o teste de germinacao tenha duracao minima de 30 dias para o fornecimento dos seus resultados finais. Esses fatos, alem de impedirem que a informacao, proveniente do teste de germinacao, reflita fielmente a viabilidade do lote analisado na ocasiao de sua emissao, causam dificuldades na comercializacao se considerado o curto intervalo de tempo disponivel entre a colheita e a semeadura. Buscando contornar estes problemas, o presente trabalho foi conduzido no sentido de aprimorar a tecnica empregada no teste de tetrazolio, visando a obtencao de resultados equivalentes aos de germinacao e a facilitacao de sua execucao. Com a utilizacao de tecnica que procurou evitar, ao maximo, os danos mecanicos sobre o embriao, durante o processo de seu preparo para a avaliacao, os resultados obtidos nao indicaram diferencas significativas entre as informacoes provenientes dos testes de germinacao e de tetrazolio. |
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Palavras-Chave: |
Analise de sementes; Qualidade fisiologica; Seed analyses. |
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Thesagro: |
Coffea Arábica. |
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Categoria do assunto: |
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Marc: |
LEADER 01584naa a2200181 a 4500
001 1104432
005 1997-12-04
008 1986 bl uuuu u00u1 u #d
100 1 $aDIAS, M. C. L. de L.
245 $aDeterminacao da viabilidade de sementes de cafe atraves do teste de tetrazolio.
260 $c1986
520 $aAs sementes de cafe (Coffea arabica L.) perdem rapidamente sua qualidade fisiologica, ao mesmo tempo em que exigem que o teste de germinacao tenha duracao minima de 30 dias para o fornecimento dos seus resultados finais. Esses fatos, alem de impedirem que a informacao, proveniente do teste de germinacao, reflita fielmente a viabilidade do lote analisado na ocasiao de sua emissao, causam dificuldades na comercializacao se considerado o curto intervalo de tempo disponivel entre a colheita e a semeadura. Buscando contornar estes problemas, o presente trabalho foi conduzido no sentido de aprimorar a tecnica empregada no teste de tetrazolio, visando a obtencao de resultados equivalentes aos de germinacao e a facilitacao de sua execucao. Com a utilizacao de tecnica que procurou evitar, ao maximo, os danos mecanicos sobre o embriao, durante o processo de seu preparo para a avaliacao, os resultados obtidos nao indicaram diferencas significativas entre as informacoes provenientes dos testes de germinacao e de tetrazolio.
650 $aCoffea Arábica
653 $aAnalise de sementes
653 $aQualidade fisiologica
653 $aSeed analyses
700 1 $aSILVA, W. R. da
773 $tPesquisa Agropecuaria Brasileira, Brasilia$gv.21, n.11, p.1139-1145, nov. 1986.
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
07/05/1997 |
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Data da última atualização: |
19/04/2007 |
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Autoria: |
OGAWA, K.; FRANZ, C. A. B.; FOLLE, S. M. |
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Título: |
Observation on the soil characteristics in no-tillage in cerrados. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Brasilia: JICA / [Planaltina]: EMBRAPA-CPAC, 1997. |
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Páginas: |
15p. |
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Descrição Física: |
2 fotografias coloridas. |
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Idioma: |
Inglês |
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Notas: |
Partial report of EMBRAPA-CPAC/JICA Project: Sustainable Agriculture Development and Natural Resources Conservations in Cerrados. |
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Conteúdo: |
In 1969 seeding machine (trade name: Bufalo) for no-tillage was imported to Rio Grande do Sul University for the first time from U.S.A. by agreement between MEC and USAID, and solgo was cultivated by no-tillage in the field of one hectare. No-tillage of wheat was carried out at Experiment Station of Agricultural Ministry (IPEAME) in Londrina, Parana, and soybean was cultivated also in Ponta Grossa Experiment Station in Parana State in 1971. In 1972 the research conserning to the no-tillage started in Ponta Grossa Experiment Station, with support of ICI (Borges, 1993). The experiment of no-tillage started also in Rio Grande do Sul state in 1973 and at Campinas of Sao Paulo State in 1976. As shown in Table 1, the area of no-tillage amounted to 54,000 ha to 57,000 ha in the latter half of 1970s and 200,000 ha in 1980/81. As mentioned above, the area of no-tillage spreaded early in the Southern States of Brazil. On the contrary, the start of no-tillage in Cerrado Region was in 1982/83, and area expance was found at least in the beginning of the 1990's, as shown in Table 1. Accordingly, the history of no-tillage in Cerrados is very short. As of 1994/95, the area of no-tillage in Cerrado Region is 24% of Brazil as shown in Table 1. Therefore, the knowledges of no-tillage in Cerrado, such as weeds control, maintenance of mulching material, soil-plant relation and compression of surface soil, is very few (Ike, 1984, Yoshida et al., 1991). In this paper, the results of observation on changes in soil characteristics... MenosIn 1969 seeding machine (trade name: Bufalo) for no-tillage was imported to Rio Grande do Sul University for the first time from U.S.A. by agreement between MEC and USAID, and solgo was cultivated by no-tillage in the field of one hectare. No-tillage of wheat was carried out at Experiment Station of Agricultural Ministry (IPEAME) in Londrina, Parana, and soybean was cultivated also in Ponta Grossa Experiment Station in Parana State in 1971. In 1972 the research conserning to the no-tillage started in Ponta Grossa Experiment Station, with support of ICI (Borges, 1993). The experiment of no-tillage started also in Rio Grande do Sul state in 1973 and at Campinas of Sao Paulo State in 1976. As shown in Table 1, the area of no-tillage amounted to 54,000 ha to 57,000 ha in the latter half of 1970s and 200,000 ha in 1980/81. As mentioned above, the area of no-tillage spreaded early in the Southern States of Brazil. On the contrary, the start of no-tillage in Cerrado Region was in 1982/83, and area expance was found at least in the beginning of the 1990's, as shown in Table 1. Accordingly, the history of no-tillage in Cerrados is very short. As of 1994/95, the area of no-tillage in Cerrado Region is 24% of Brazil as shown in Table 1. Therefore, the knowledges of no-tillage in Cerrado, such as weeds control, maintenance of mulching material, soil-plant relation and compression of surface soil, is very few (Ike, 1984, Yoshida et al., 1991). In this paper, the results of observation on... Mostrar Tudo |
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Palavras-Chave: |
Brasil; Brasilia; Distrito Federal; Formosa; Goias; Luziania; Maize; Planaltina; Propriedade fisico-quimica do solo; Soil chemicophysical properties; Wheats; Zero tillage. |
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Thesagro: |
Cerrado; Glycine Max; Irrigação; Milheto; Milho; Pennisetum Americanum; Pennisetum Typhoides; Plantio Direto; Soja; Trigo; Triticum Aestivum; Zea Mays. |
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Thesaurus NAL: |
Brazil; irrigation; millets; soil; soybeans. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02908nam a2200505 a 4500
001 1552815
005 2007-04-19
008 1997 bl uuuu u00u1 u #d
100 1 $aOGAWA, K.
245 $aObservation on the soil characteristics in no-tillage in cerrados.
260 $aBrasilia: JICA / [Planaltina]: EMBRAPA-CPAC$c1997
300 $a15p.$c2 fotografias coloridas.
500 $aPartial report of EMBRAPA-CPAC/JICA Project: Sustainable Agriculture Development and Natural Resources Conservations in Cerrados.
520 $aIn 1969 seeding machine (trade name: Bufalo) for no-tillage was imported to Rio Grande do Sul University for the first time from U.S.A. by agreement between MEC and USAID, and solgo was cultivated by no-tillage in the field of one hectare. No-tillage of wheat was carried out at Experiment Station of Agricultural Ministry (IPEAME) in Londrina, Parana, and soybean was cultivated also in Ponta Grossa Experiment Station in Parana State in 1971. In 1972 the research conserning to the no-tillage started in Ponta Grossa Experiment Station, with support of ICI (Borges, 1993). The experiment of no-tillage started also in Rio Grande do Sul state in 1973 and at Campinas of Sao Paulo State in 1976. As shown in Table 1, the area of no-tillage amounted to 54,000 ha to 57,000 ha in the latter half of 1970s and 200,000 ha in 1980/81. As mentioned above, the area of no-tillage spreaded early in the Southern States of Brazil. On the contrary, the start of no-tillage in Cerrado Region was in 1982/83, and area expance was found at least in the beginning of the 1990's, as shown in Table 1. Accordingly, the history of no-tillage in Cerrados is very short. As of 1994/95, the area of no-tillage in Cerrado Region is 24% of Brazil as shown in Table 1. Therefore, the knowledges of no-tillage in Cerrado, such as weeds control, maintenance of mulching material, soil-plant relation and compression of surface soil, is very few (Ike, 1984, Yoshida et al., 1991). In this paper, the results of observation on changes in soil characteristics...
650 $aBrazil
650 $airrigation
650 $amillets
650 $asoil
650 $asoybeans
650 $aCerrado
650 $aGlycine Max
650 $aIrrigação
650 $aMilheto
650 $aMilho
650 $aPennisetum Americanum
650 $aPennisetum Typhoides
650 $aPlantio Direto
650 $aSoja
650 $aTrigo
650 $aTriticum Aestivum
650 $aZea Mays
653 $aBrasil
653 $aBrasilia
653 $aDistrito Federal
653 $aFormosa
653 $aGoias
653 $aLuziania
653 $aMaize
653 $aPlanaltina
653 $aPropriedade fisico-quimica do solo
653 $aSoil chemicophysical properties
653 $aWheats
653 $aZero tillage
700 1 $aFRANZ, C. A. B.
700 1 $aFOLLE, S. M.
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Embrapa Cerrados (CPAC) |
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