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Registro Completo |
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Biblioteca(s): |
Embrapa Clima Temperado; Embrapa Gado de Corte; Embrapa Semiárido; Embrapa Soja. |
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Data corrente: |
28/02/1991 |
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Data da última atualização: |
16/06/2000 |
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Autoria: |
CORREA, M. A. S. |
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Título: |
Some aspects of seed maturation in bahiagrass (Paspalum notatum Flugge). |
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Ano de publicação: |
1974 |
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Fonte/Imprenta: |
Mississippi State: Mississippi State University, 1974. |
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Páginas: |
44p. |
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Idioma: |
Inglês |
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Notas: |
M.Sc. Thesis. |
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Conteúdo: |
The development and maturation of Pensacola bahiagrass (Paspalum notatum Flugge) seed were studied during the 1973 growing season at Mississippi State, Mississippi. Measurements of dry weight, moisture content, germination potencial, and seedling dry weight were made with seed harvested at two-day intervals. An additional study was undertaken to determine the magnitude of seed shattering in Pensacola bahiagrass and relate its progress to the various stages of seed development. Another purpose of this study was to compare seed which shattered at different intervals with the unshattered ones, for possible diferences in seed characteristics. Six days after anthesis, Pensacola bahiagrass seed were capable of germination in the laboratory, however, when planted in the greenhouse, germination would occur only in those seed harvested eight days after anthesis or later. A peak of 94.5 percent germination was observed in those seed harvested at fourteen days after anthesis. Maximum dry weight and vigor of bahiagrass seed was obtained approximately sixteen days after anthesis at a moisture content of about 29 percent. Seed shattering began and was most severe (60 percent of the total shattered seed) fourteen days after complete raceme exertion, and twenty-two days later, about 36 percent of the seed produced had shattered. Climatic conditions play an important role in seed shattering progress. This was demonstrated by the fact that high rates of seed shattering were always associated with the presence of severe climatic conditions in the way of heavy rainfall, high wind velocity or a combination of both. Unshattered Pensacola bahiagrass seed tend to have a higher degree of dormancy than the shattered ones. The high degree of variability in seed holding capacity observed among the 52 clones of Pensacola bahiagrass studied, suggest that a breeding program could possibly improve seed retention in the variety. MenosThe development and maturation of Pensacola bahiagrass (Paspalum notatum Flugge) seed were studied during the 1973 growing season at Mississippi State, Mississippi. Measurements of dry weight, moisture content, germination potencial, and seedling dry weight were made with seed harvested at two-day intervals. An additional study was undertaken to determine the magnitude of seed shattering in Pensacola bahiagrass and relate its progress to the various stages of seed development. Another purpose of this study was to compare seed which shattered at different intervals with the unshattered ones, for possible diferences in seed characteristics. Six days after anthesis, Pensacola bahiagrass seed were capable of germination in the laboratory, however, when planted in the greenhouse, germination would occur only in those seed harvested eight days after anthesis or later. A peak of 94.5 percent germination was observed in those seed harvested at fourteen days after anthesis. Maximum dry weight and vigor of bahiagrass seed was obtained approximately sixteen days after anthesis at a moisture content of about 29 percent. Seed shattering began and was most severe (60 percent of the total shattered seed) fourteen days after complete raceme exertion, and twenty-two days later, about 36 percent of the seed produced had shattered. Climatic conditions play an important role in seed shattering progress. This was demonstrated by the fact that high rates of seed shattering were always associated ... Mostrar Tudo |
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Palavras-Chave: |
Capim Bahia; Forrageira; Maturation; Paspalum natatum; Paspalum notatum Flugge; Seed. |
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Thesagro: |
Maturação; Pastagem; Semente. |
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Thesaurus Nal: |
seed maturation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02596nam a2200253 a 4500
001 1462018
005 2000-06-16
008 1974 bl uuuu m 00u1 u #d
100 1 $aCORREA, M. A. S.
245 $aSome aspects of seed maturation in bahiagrass (Paspalum notatum Flugge).
260 $aMississippi State: Mississippi State University$c1974
300 $a44p.
500 $aM.Sc. Thesis.
520 $aThe development and maturation of Pensacola bahiagrass (Paspalum notatum Flugge) seed were studied during the 1973 growing season at Mississippi State, Mississippi. Measurements of dry weight, moisture content, germination potencial, and seedling dry weight were made with seed harvested at two-day intervals. An additional study was undertaken to determine the magnitude of seed shattering in Pensacola bahiagrass and relate its progress to the various stages of seed development. Another purpose of this study was to compare seed which shattered at different intervals with the unshattered ones, for possible diferences in seed characteristics. Six days after anthesis, Pensacola bahiagrass seed were capable of germination in the laboratory, however, when planted in the greenhouse, germination would occur only in those seed harvested eight days after anthesis or later. A peak of 94.5 percent germination was observed in those seed harvested at fourteen days after anthesis. Maximum dry weight and vigor of bahiagrass seed was obtained approximately sixteen days after anthesis at a moisture content of about 29 percent. Seed shattering began and was most severe (60 percent of the total shattered seed) fourteen days after complete raceme exertion, and twenty-two days later, about 36 percent of the seed produced had shattered. Climatic conditions play an important role in seed shattering progress. This was demonstrated by the fact that high rates of seed shattering were always associated with the presence of severe climatic conditions in the way of heavy rainfall, high wind velocity or a combination of both. Unshattered Pensacola bahiagrass seed tend to have a higher degree of dormancy than the shattered ones. The high degree of variability in seed holding capacity observed among the 52 clones of Pensacola bahiagrass studied, suggest that a breeding program could possibly improve seed retention in the variety.
650 $aseed maturation
650 $aMaturação
650 $aPastagem
650 $aSemente
653 $aCapim Bahia
653 $aForrageira
653 $aMaturation
653 $aPaspalum natatum
653 $aPaspalum notatum Flugge
653 $aSeed
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Registro original: |
Embrapa Soja (CNPSO) |
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| Registros recuperados : 4 | |
| 1. |  | CORREA, C. M. de A.; CORREA, M. A.; NASCIMENTO, J. N. do; NASCIMENTO, S. R. do; OLIVEIRA, H. N. de. Avaliação da produtividade do feijão-caupi, Vigns unguiculata, em Aquidauana, MS. In: SEMANA AGRONÔMICA, 6.; ENCONTRO TÉCNICO-CIENTÍFICO, 1., 2009, Aquidauana. [Resumos...]. Aquidauana: UEMS, 2009. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 2. | | CORRÊA, M. A. de O.; FRONZA, V.; SOARES SOBRINHO, J.; PEREIRA, P. R. V. da S.; MARSARO JUNIOR, A. L.; LAU, D. Trigo (Triticum aestivum L.). In: PAULA JÚNIOR, T. J. de; VENZON, M. (Ed.). 101 culturas: manual de tecnologias agrícolas. 2. ed. rev. atual. Belo Horizonte: EPAMIG, 2019. Cap. 99, p. 881-889.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Trigo. |
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| 3. | | VELOSO, G. B. R.; ASSIS, R. P.; PEREIRA, J. A. S.; CARVALHO, F. A.; SOARES, C. P.; BRUNETTI, I. L.; ISAAC, V. L. B.; RIBEIRO, P. R. V.; ZOCOLO, G. J.; CORRÊA, M. A.; SANTOS, A. G. DOS. Scavenging activity on reactive oxygen species with biological relevance by Varronia curassavica. Orbital: the Electronic Journal of Chemistry, v. 15, n. 2, p. 111-117, 2023.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Agroindústria Tropical; Embrapa Soja. |
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| 4. | | CASTRO, A. C. C. M. de; ODA, F. B.; ALMEIDA-CINCOTTO, M.G.J.; DAVANÇO, M. G.; CHIARI-ANDRÉO, B.G.; CICARELLI, R. M. B.; PECCININI, R. G.; ZOCOLO, G. J.; RIBEIRO, P. R. V.; CORRÊA, M. A.; ISAAC, V. L. B.; SANTOS, A. G. Green coffee seed residue: A sustainable source of antioxidant compounds. Food Chemistry, v. 246, p. 48-57, 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Agroindústria Tropical. |
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| Registros recuperados : 4 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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