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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sul. |
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Data corrente: |
28/11/2011 |
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Data da última atualização: |
15/02/2012 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
GENRO, T. C. M.; GENRO NETO, J. S.; CÔRREA, A. C. J.; LACA, E. A. |
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Afiliação: |
TERESA CRISTINA MORAES GENRO, CPPSUL; JAIRO SILVEIRA GENRO NETO, Universidade Federal de Santa Maria, RS, Brasil.; ANA CAROLINA JARDIM CORRÊA, Urcamp, Bagé/RS, Bolsista FAPERGS; EMILIO ANDRÉS LACA, University of California Davis, CA, USA. |
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Título: |
N-Alkanes method to estimate dry matter intake on tropical grasses. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
In: REUNIÓN DE LA ASOCIACIÓN LATINOAMERICANA DE PRODUCCIÓN ANIMAL, 22., 2011, Montevideo, Uruguay. Memorias... Montevideo: Asociación Uruguaya de Producción Animal, 2011. |
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Descrição Física: |
1 CD-ROM. |
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ISSN: |
2075-8359 |
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Idioma: |
Inglês |
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Conteúdo: |
This trial was conducted to define which alkane (C31 and C33) must be paired with the external marker (C32) to estimate dry matter intake (DMI) of steers grazing three tropical grasses: Brachiaria brizantha cv. Marandu , Panicum maximum cv. Mombaça e Penisetum purpureum cv. Cameroon. This experiment was carried out at Embrapa Beef Cattle, Campo Grande, MS, Brazil. The steers were rotated on a predetermined schedule of 2 days of grazing per rotational paddock. Rotation order through the paddocks remained constant, with 30 days after each grazing bout. Measurements were made during two grazing periods: the middle of the dry season (August 97), at the beginning of the wet season (November 97). To estimate dry matter intake (DMI) eighteen Nelore steers were dosed during 12 days, twice a day, with alkane C32. From eighth to 12th day faeces were collected twice a day also. Herbage hand-clipping samples for n-alkanes analysis were collected from pastures. The profiles of n-alkanes were determinate from herbage and faeces within the range of C-chain between 27 and 35. We can see a clearly difference between DMI estimated using the pair C32/C33 and C32/C31. C32/C31 underestimated DMI and the pair C32/C33 showed DMI values near to values found in the literature for this steers. Both pairs were able to detect DMI differences between species, period and interaction between these. C32/C33 seems to be more suitable for DMI assessments using the double alkane technique. |
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Palavras-Chave: |
Brasil; Consumo de matéria seca; Grama tropical. |
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Thesagro: |
Pastagem. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/48090/1/E-106-pagina118poster.pdf
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Marc: |
LEADER 02217nam a2200217 a 4500
001 1907425
005 2012-02-15
008 2011 bl uuuu u00u1 u #d
022 $a2075-8359
100 1 $aGENRO, T. C. M.
245 $aN-Alkanes method to estimate dry matter intake on tropical grasses.$h[electronic resource]
260 $aIn: REUNIÓN DE LA ASOCIACIÓN LATINOAMERICANA DE PRODUCCIÓN ANIMAL, 22., 2011, Montevideo, Uruguay. Memorias... Montevideo: Asociación Uruguaya de Producción Animal$c2011
300 $c1 CD-ROM.
520 $aThis trial was conducted to define which alkane (C31 and C33) must be paired with the external marker (C32) to estimate dry matter intake (DMI) of steers grazing three tropical grasses: Brachiaria brizantha cv. Marandu , Panicum maximum cv. Mombaça e Penisetum purpureum cv. Cameroon. This experiment was carried out at Embrapa Beef Cattle, Campo Grande, MS, Brazil. The steers were rotated on a predetermined schedule of 2 days of grazing per rotational paddock. Rotation order through the paddocks remained constant, with 30 days after each grazing bout. Measurements were made during two grazing periods: the middle of the dry season (August 97), at the beginning of the wet season (November 97). To estimate dry matter intake (DMI) eighteen Nelore steers were dosed during 12 days, twice a day, with alkane C32. From eighth to 12th day faeces were collected twice a day also. Herbage hand-clipping samples for n-alkanes analysis were collected from pastures. The profiles of n-alkanes were determinate from herbage and faeces within the range of C-chain between 27 and 35. We can see a clearly difference between DMI estimated using the pair C32/C33 and C32/C31. C32/C31 underestimated DMI and the pair C32/C33 showed DMI values near to values found in the literature for this steers. Both pairs were able to detect DMI differences between species, period and interaction between these. C32/C33 seems to be more suitable for DMI assessments using the double alkane technique.
650 $aPastagem
653 $aBrasil
653 $aConsumo de matéria seca
653 $aGrama tropical
700 1 $aGENRO NETO, J. S.
700 1 $aCÔRREA, A. C. J.
700 1 $aLACA, E. A.
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Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
15/08/2022 |
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Data da última atualização: |
15/08/2022 |
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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: |
FARIAS, R. de M.; BARRETO, C. F.; MARTINS, C. R.; ZANDONÁ, R. R.; SCHIAVON, A. V.; FARIAS, P. C. de M. |
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Afiliação: |
ROSELI DE MELLO FARIAS; CAROLINE FARIAS BARRETO; CARLOS ROBERTO MARTINS, CPACT; RENAN RICARDO ZANDONÁ; ANDRESSA VIGHI SCHIAVON; PAULO CELSO DE MELLO FARIAS. |
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Título: |
Chemical thinning of "Sensação" peach trees. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Comunicata Scientiae, v. 13, e3686, 2022. |
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Páginas: |
6 p. |
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ISSN: |
2177-5133 |
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Idioma: |
Inglês |
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Conteúdo: |
Peach tree thinning is essential for harvesting quality fruits and maintaining balanced fruit production for several years. Manual thinning of peach trees requires a large workforce, thereby increasing the production costs. Chemical thinning may be an alternative solution, but its efficiency depends on the dose of the chemical and plant species. This study aimed to evaluate the effect of different concentrations of metamitron on the chemical thinning of peach trees in southern Brazil. The experiment was carried out in a commercial orchard of peach cultivar ?Sensação? in Morro Redondo, Rio Grande do Sul (RS) state, Brazil. Different metamitron concentrations100 mg L-1, 200 mg L-1, 300 mg L-1, and 400 mg L-1were applied, and manual thinning was carried out 40 days after full bloom (DAFB) and to the treatment where the plants had no thinning. Fruit abscission, effective fructification, total number of plants per plant, production per plant, mean mass, and fruit diameter were evaluated. Applications of 300 and 400 mg L-1 metamitron 40 DAFB promoted high fruit abscission, in addition to decreasing the number of fruits and production. In contrast, applications of 100 and 200 mg L-1 of metamitron 40 DAFB was as efficient in thinning as manual thinning practice with respect to fruit production and fruit mass and its diameter. |
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Palavras-Chave: |
Cultivar Sensação. |
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Thesagro: |
Pêssego; Prunus Persica; Raleio. |
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Thesaurus NAL: |
Metamitron. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1145428/1/Artigo-Chemical-thinning-of-Sensacao-peach-trees.pdf
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Marc: |
LEADER 02029naa a2200265 a 4500
001 2145428
005 2022-08-15
008 2022 bl uuuu u00u1 u #d
022 $a2177-5133
100 1 $aFARIAS, R. de M.
245 $aChemical thinning of "Sensação" peach trees.$h[electronic resource]
260 $c2022
300 $a6 p.
520 $aPeach tree thinning is essential for harvesting quality fruits and maintaining balanced fruit production for several years. Manual thinning of peach trees requires a large workforce, thereby increasing the production costs. Chemical thinning may be an alternative solution, but its efficiency depends on the dose of the chemical and plant species. This study aimed to evaluate the effect of different concentrations of metamitron on the chemical thinning of peach trees in southern Brazil. The experiment was carried out in a commercial orchard of peach cultivar ?Sensação? in Morro Redondo, Rio Grande do Sul (RS) state, Brazil. Different metamitron concentrations100 mg L-1, 200 mg L-1, 300 mg L-1, and 400 mg L-1were applied, and manual thinning was carried out 40 days after full bloom (DAFB) and to the treatment where the plants had no thinning. Fruit abscission, effective fructification, total number of plants per plant, production per plant, mean mass, and fruit diameter were evaluated. Applications of 300 and 400 mg L-1 metamitron 40 DAFB promoted high fruit abscission, in addition to decreasing the number of fruits and production. In contrast, applications of 100 and 200 mg L-1 of metamitron 40 DAFB was as efficient in thinning as manual thinning practice with respect to fruit production and fruit mass and its diameter.
650 $aMetamitron
650 $aPêssego
650 $aPrunus Persica
650 $aRaleio
653 $aCultivar Sensação
700 1 $aBARRETO, C. F.
700 1 $aMARTINS, C. R.
700 1 $aZANDONÁ, R. R.
700 1 $aSCHIAVON, A. V.
700 1 $aFARIAS, P. C. de M.
773 $tComunicata Scientiae$gv. 13, e3686, 2022.
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Embrapa Clima Temperado (CPACT) |
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