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Registro Completo |
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia; Embrapa Soja. |
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Data corrente: |
05/05/1993 |
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Data da última atualização: |
01/09/2004 |
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Autoria: |
HOLM, L.; PANCHO, J. V.; HERBERGER, J. P.; PLUCKNETT, D. L. |
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Título: |
A geographical atlas of world weeds. |
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Ano de publicação: |
1979 |
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Fonte/Imprenta: |
New York: J. Wiley & Sons, 1979. |
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Páginas: |
391p. |
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ISBN: |
0-471-04393-1 |
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Idioma: |
Inglês |
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Notas: |
Texto em ingles, arabe, chines, frances, alemao, hindi, indonesiano, japones, russo e espanhol. |
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Conteúdo: |
World weeds and their geographical distribution. |
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Palavras-Chave: |
Nomenclatura cientifica; Nomenclature; Planta daninha; Scientific nomenclature; Weed. |
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Thesagro: |
Distribuição Geográfica; Erva Daninha; Nomenclatura. |
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Thesaurus Nal: |
geographical distribution. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00877nam a2200289 a 4500
001 1457131
005 2004-09-01
008 1979 bl uuuu de 00u1 u #d
020 $a0-471-04393-1
100 1 $aHOLM, L.
245 $aA geographical atlas of world weeds.
260 $aNew York: J. Wiley & Sons$c1979
300 $a391p.
500 $aTexto em ingles, arabe, chines, frances, alemao, hindi, indonesiano, japones, russo e espanhol.
520 $aWorld weeds and their geographical distribution.
650 $ageographical distribution
650 $aDistribuição Geográfica
650 $aErva Daninha
650 $aNomenclatura
653 $aNomenclatura cientifica
653 $aNomenclature
653 $aPlanta daninha
653 $aScientific nomenclature
653 $aWeed
700 1 $aPANCHO, J. V.
700 1 $aHERBERGER, J. P.
700 1 $aPLUCKNETT, D. L.
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Registro original: |
Embrapa Soja (CNPSO) |
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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: |
26/03/2012 |
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Data da última atualização: |
26/01/2017 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
FALEIRO, F. G.; KANNAN, B.; ALTPETER, F. |
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Afiliação: |
FABIO GELAPE FALEIRO, CPAC; BASKARAN KANNAN; FREDY ALTPETER. |
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Título: |
In vitro chromossome doubling of superior interspecific hybrids between elephantgrass and pearl millet using different antimitotic chemicals. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
In: ANNUAL FESC SUMMIT, 3., 2011, Florida. Oral and poster session: abstracts. [Gainesville: FESC, 2011]. |
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Páginas: |
p. 26. |
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Idioma: |
Inglês |
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Notas: |
Florida Energy Systems Consortium. |
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Conteúdo: |
Elephantgrass (Pennisetum purpureum 2n = 4x = 28) produces large amounts of biomass in tropical and subtropical regions and is considered a prime candidate for production of lignocellulosic biofuel. Interspecific hybridization between elephantgrass and pearl millet (Pennisetum glaucum 2n = 2x = 14) may allow to improve important traits (e.g. drought tolerance, biomass quality and production). In contrast to elephantgrass and pearl millet, which produce large amounts of seeds, interspecific hybrids are male and female sterile due to triploidy (2n = 3x = 21) and do not produce seeds. Chromosome doubling of the triploid hybrids may restore seed production and fertility, allowing backcrosses with elephantgrass to further enhance biomass production and persistence. In this study, chromosome doubling was performed in vitro from the most persistent and productive interspecific hybrids. Callus was induced in vitro from cross-sections of the immature leaf whorl of five superior interspecific hybrids (MN 12, MN 18, MN 51, MN 54 and MN 55). Embryogenic calli were incubated for 48h with two alternative concentrations of the antimitotic agents Oryzalin or Trifluralin. Stomata size measurements and flow cytometry were performed following plant regeneration from embryogenic callus and transfer to soil. A total of 328 regenerated plants were obtained and 74 presented altered ploidy according to flow cytometer analysis. Stomata longitudinal diameter was a good indicator of altered ploidy. The treatment with 5 µM Oryzalin produced the highest number (55) of plants with altered ploidy. Chromosome doubling was obtained for all five superior interspecific hybrids. The highest numbers of plants with altered ploidy was obtained from MN 18 and MN 51 genotypes with of 29 and 27 plants, respectively. The plants with altered ploidy have been transferred to the field to evaluate agronomic performance and fertility. The best performing plants with recovered fertility will be used in further elephant grass breeding cycles. MenosElephantgrass (Pennisetum purpureum 2n = 4x = 28) produces large amounts of biomass in tropical and subtropical regions and is considered a prime candidate for production of lignocellulosic biofuel. Interspecific hybridization between elephantgrass and pearl millet (Pennisetum glaucum 2n = 2x = 14) may allow to improve important traits (e.g. drought tolerance, biomass quality and production). In contrast to elephantgrass and pearl millet, which produce large amounts of seeds, interspecific hybrids are male and female sterile due to triploidy (2n = 3x = 21) and do not produce seeds. Chromosome doubling of the triploid hybrids may restore seed production and fertility, allowing backcrosses with elephantgrass to further enhance biomass production and persistence. In this study, chromosome doubling was performed in vitro from the most persistent and productive interspecific hybrids. Callus was induced in vitro from cross-sections of the immature leaf whorl of five superior interspecific hybrids (MN 12, MN 18, MN 51, MN 54 and MN 55). Embryogenic calli were incubated for 48h with two alternative concentrations of the antimitotic agents Oryzalin or Trifluralin. Stomata size measurements and flow cytometry were performed following plant regeneration from embryogenic callus and transfer to soil. A total of 328 regenerated plants were obtained and 74 presented altered ploidy according to flow cytometer analysis. Stomata longitudinal diameter was a good indicator of altered ploidy. Th... Mostrar Tudo |
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Thesagro: |
Pennisetum Purpureum. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02667naa a2200181 a 4500
001 1920322
005 2017-01-26
008 2011 bl uuuu u00u1 u #d
100 1 $aFALEIRO, F. G.
245 $aIn vitro chromossome doubling of superior interspecific hybrids between elephantgrass and pearl millet using different antimitotic chemicals.
260 $c2011
300 $ap. 26.
500 $aFlorida Energy Systems Consortium.
520 $aElephantgrass (Pennisetum purpureum 2n = 4x = 28) produces large amounts of biomass in tropical and subtropical regions and is considered a prime candidate for production of lignocellulosic biofuel. Interspecific hybridization between elephantgrass and pearl millet (Pennisetum glaucum 2n = 2x = 14) may allow to improve important traits (e.g. drought tolerance, biomass quality and production). In contrast to elephantgrass and pearl millet, which produce large amounts of seeds, interspecific hybrids are male and female sterile due to triploidy (2n = 3x = 21) and do not produce seeds. Chromosome doubling of the triploid hybrids may restore seed production and fertility, allowing backcrosses with elephantgrass to further enhance biomass production and persistence. In this study, chromosome doubling was performed in vitro from the most persistent and productive interspecific hybrids. Callus was induced in vitro from cross-sections of the immature leaf whorl of five superior interspecific hybrids (MN 12, MN 18, MN 51, MN 54 and MN 55). Embryogenic calli were incubated for 48h with two alternative concentrations of the antimitotic agents Oryzalin or Trifluralin. Stomata size measurements and flow cytometry were performed following plant regeneration from embryogenic callus and transfer to soil. A total of 328 regenerated plants were obtained and 74 presented altered ploidy according to flow cytometer analysis. Stomata longitudinal diameter was a good indicator of altered ploidy. The treatment with 5 µM Oryzalin produced the highest number (55) of plants with altered ploidy. Chromosome doubling was obtained for all five superior interspecific hybrids. The highest numbers of plants with altered ploidy was obtained from MN 18 and MN 51 genotypes with of 29 and 27 plants, respectively. The plants with altered ploidy have been transferred to the field to evaluate agronomic performance and fertility. The best performing plants with recovered fertility will be used in further elephant grass breeding cycles.
650 $aPennisetum Purpureum
700 1 $aKANNAN, B.
700 1 $aALTPETER, F.
773 $tIn: ANNUAL FESC SUMMIT, 3., 2011, Florida. Oral and poster session: abstracts. [Gainesville: FESC, 2011].
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