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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
09/02/1996 |
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Data da última atualização: |
09/02/1996 |
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Autoria: |
AFOLAYAN, T. A.; FAFUNSHO, M. |
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Título: |
Seasonal variation in the protein content and the grazing of some tropical savanna grasses. |
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Ano de publicação: |
1978 |
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Fonte/Imprenta: |
East African Wildlife Journal, v.16, n.2, p.97-104, 1978. |
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Idioma: |
Inglês |
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Conteúdo: |
This paper presents the effects of seasonal variation on the protein contents of four grass species examined in the experimental fire plots at Kainji Lake National Park in the North-
ern Guinea savanna zone of Nigeria. Also reported is the proportion of grass utilized on year-long basis. Tropical savanna grasses generally have higher protein contents at the beginning of the growing season than at the end when they become tall, coarse and un-
palatable. It is also shown that the percentage of grass species utilized by game follow the seasonal changes in their protein contents; utilization being highest when the protein con-
tent of grass is optimum. It is stressed that trees, shrubs and forbs should not be totally eli-
minated from grazing lands because of the great contribution they make to animal feeding during the dry season when the grasses become dry and coarse with low nutritive value. |
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Palavras-Chave: |
Pastagem tropical; Protein; Tropical savanna. |
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Thesagro: |
Proteína; Variação Sazonal. |
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Thesaurus Nal: |
Nigeria; seasonal variation. |
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Categoria do assunto: |
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Marc: |
LEADER 01517naa a2200217 a 4500
001 1787183
005 1996-02-09
008 1978 bl --- 0-- u #d
100 1 $aAFOLAYAN, T. A.
245 $aSeasonal variation in the protein content and the grazing of some tropical savanna grasses.
260 $c1978
520 $aThis paper presents the effects of seasonal variation on the protein contents of four grass species examined in the experimental fire plots at Kainji Lake National Park in the North- ern Guinea savanna zone of Nigeria. Also reported is the proportion of grass utilized on year-long basis. Tropical savanna grasses generally have higher protein contents at the beginning of the growing season than at the end when they become tall, coarse and un- palatable. It is also shown that the percentage of grass species utilized by game follow the seasonal changes in their protein contents; utilization being highest when the protein con- tent of grass is optimum. It is stressed that trees, shrubs and forbs should not be totally eli- minated from grazing lands because of the great contribution they make to animal feeding during the dry season when the grasses become dry and coarse with low nutritive value.
650 $aNigeria
650 $aseasonal variation
650 $aProteína
650 $aVariação Sazonal
653 $aPastagem tropical
653 $aProtein
653 $aTropical savanna
700 1 $aFAFUNSHO, M.
773 $tEast African Wildlife Journal$gv.16, n.2, p.97-104, 1978.
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Registro original: |
Embrapa Pantanal (CPAP) |
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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: |
17/12/2015 |
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Data da última atualização: |
25/07/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
MATSUMURA, E. E.; SECCO, V. A.; MOREIRA, R. S.; SANTOS, O. J. A. P. dos; HUNGRIA, M.; OLIVEIRA, A. L. M. de. |
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Afiliação: |
EMILYN EMY MATSUMURA, UEL; VINÍCIUS ANDRADE SECCO, UEL; RENATA STOLF MOREIRA, UEL; ODAIR JOSÉ ANDRADE PAIS DOS SANTOS, UEL; MARIANGELA HUNGRIA DA CUNHA, CNPSO; ANDRÉ LUIZ MARTINEZ DE OLIVEIRA, UEL. |
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Título: |
Composition and activity of endophytic bacterial communities in field-grown maize plants inoculated with Azospirillum brasilense. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Annals of Microbiology, v. 65, n. 4, p. 2187-2200, Dec. 2015. |
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ISSN: |
1869-2044 |
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DOI: |
10.1007/s13213-015-1059-4 |
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Idioma: |
Inglês |
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Conteúdo: |
he application of agricultural practices in which non-leguminous plants are inoculated with growth-promoting diazotrophic bacteria is gaining importance worldwide. Nevertheless, an efficient strategy for using this inoculation technology is still lacking, and a better comprehension of the environmental factorsthat influence a plant?s ability to support its associative bacterial community isindispensable to achieving standardized inoculation responses. To address the effects of nitrogen (N)-fertilization on the diversity of both the total and metabolically active endophytic bacterial communities of field-grown maize plants, we extracted total DNA and RNA from maize plantsinoculated with Azospirillumbrasilense strain Ab-V5 that were growing in Oxisol and treated with regular and low levels of N-fertilizers(RN and LN, respectively). Four clon- al libraries were constructed and sequenced and the dominant populations analyzed. Partial description of the bacterial diver- sity indicated that plants receiving RN- and LN-treatments can maintain bacterial communities with similar diversity indexes for the total endophytic bacterial community, although the com- munities of Novosphingobium and Methylobacterium were un- evenly distributed. Fertilization management had a stronger effect on the dominant populations of the metabolically active bacterial community, and 16S rRNA gene libraries from RN plants suggested a lower diversity of such populations in com- parison with libraries from LN plants. The agronomic parameters obtained at the end of the crop season indicated that the inoculation treatment was efficient in promoting plant growth. However, the combination of regular treatments with Nfertilizers and plant inoculation did not have an additive effect and actually tended to decrease crop productivity. Menoshe application of agricultural practices in which non-leguminous plants are inoculated with growth-promoting diazotrophic bacteria is gaining importance worldwide. Nevertheless, an efficient strategy for using this inoculation technology is still lacking, and a better comprehension of the environmental factorsthat influence a plant?s ability to support its associative bacterial community isindispensable to achieving standardized inoculation responses. To address the effects of nitrogen (N)-fertilization on the diversity of both the total and metabolically active endophytic bacterial communities of field-grown maize plants, we extracted total DNA and RNA from maize plantsinoculated with Azospirillumbrasilense strain Ab-V5 that were growing in Oxisol and treated with regular and low levels of N-fertilizers(RN and LN, respectively). Four clon- al libraries were constructed and sequenced and the dominant populations analyzed. Partial description of the bacterial diver- sity indicated that plants receiving RN- and LN-treatments can maintain bacterial communities with similar diversity indexes for the total endophytic bacterial community, although the com- munities of Novosphingobium and Methylobacterium were un- evenly distributed. Fertilization management had a stronger effect on the dominant populations of the metabolically active bacterial community, and 16S rRNA gene libraries from RN plants suggested a lower diversity of such populations in com- parison with libraries from L... Mostrar Tudo |
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Thesagro: |
Inoculação. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02532naa a2200217 a 4500
001 2031947
005 2017-07-25
008 2015 bl uuuu u00u1 u #d
022 $a1869-2044
024 7 $a10.1007/s13213-015-1059-4$2DOI
100 1 $aMATSUMURA, E. E.
245 $aComposition and activity of endophytic bacterial communities in field-grown maize plants inoculated with Azospirillum brasilense.$h[electronic resource]
260 $c2015
520 $ahe application of agricultural practices in which non-leguminous plants are inoculated with growth-promoting diazotrophic bacteria is gaining importance worldwide. Nevertheless, an efficient strategy for using this inoculation technology is still lacking, and a better comprehension of the environmental factorsthat influence a plant?s ability to support its associative bacterial community isindispensable to achieving standardized inoculation responses. To address the effects of nitrogen (N)-fertilization on the diversity of both the total and metabolically active endophytic bacterial communities of field-grown maize plants, we extracted total DNA and RNA from maize plantsinoculated with Azospirillumbrasilense strain Ab-V5 that were growing in Oxisol and treated with regular and low levels of N-fertilizers(RN and LN, respectively). Four clon- al libraries were constructed and sequenced and the dominant populations analyzed. Partial description of the bacterial diver- sity indicated that plants receiving RN- and LN-treatments can maintain bacterial communities with similar diversity indexes for the total endophytic bacterial community, although the com- munities of Novosphingobium and Methylobacterium were un- evenly distributed. Fertilization management had a stronger effect on the dominant populations of the metabolically active bacterial community, and 16S rRNA gene libraries from RN plants suggested a lower diversity of such populations in com- parison with libraries from LN plants. The agronomic parameters obtained at the end of the crop season indicated that the inoculation treatment was efficient in promoting plant growth. However, the combination of regular treatments with Nfertilizers and plant inoculation did not have an additive effect and actually tended to decrease crop productivity.
650 $aInoculação
700 1 $aSECCO, V. A.
700 1 $aMOREIRA, R. S.
700 1 $aSANTOS, O. J. A. P. dos
700 1 $aHUNGRIA, M.
700 1 $aOLIVEIRA, A. L. M. de
773 $tAnnals of Microbiology$gv. 65, n. 4, p. 2187-2200, Dec. 2015.
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