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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
14/07/2000 |
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Data da última atualização: |
15/01/2014 |
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Autoria: |
POTT, A. |
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Título: |
Effects of sheep grazing and treading, and of shading on the growth and population dynamics of Lotonomis bainesii grown with Digitaria decumbens. |
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Ano de publicação: |
1979 |
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Fonte/Imprenta: |
Australia: University Queensland, 1979. |
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Páginas: |
241p. |
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Idioma: |
Inglês |
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Notas: |
Tese Mestrado. |
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Conteúdo: |
The productivity and persistence of Lotononis bainesii cv. Miles grown with Digitaria decumbens cv. pangola was studied in two field experiments (exp.-1 grazing intensity, and exp.-2 treading), conducted at the University of Queensland Research Station at Mt. Cotton, on a red-yellow podzolic soil. A glasshouse experiment (exp.-3 shading) at St. Lucia contrasted the shade tolerance of the two species. Exp.-1 lasted two years, and comprised 4 stocking rates (7, 14, 21 and 28 sheep ha-1); six replicates were grazed in rotation (3 days on, 15 days off). Pasture dry matter yields and botanical composition were assessed three-monthly, and Lotononis demography was monitored by tagging individual plants in permanent quadrats, core sampling for stolon nodal root population and soil seed reserves (flotation recovery); in addition, soil bulk density was estimated. Lotononis did not persist under grazing regardless of stockinh rate. It behaved as a short-lived plant, predominantly annual, with some (insufficient) vegetative perennation (stolon rooted units) under heavy grazing. Soil seed reserves were 550 seeds m-2 (1.6 kg ha -1) under 21-28 sheep ha-1, compared to 4500 seeds m-2 (13 kg ha-1) under lenient grazing. Lotononis failed to regenerate under Pangola shading/or inopportune high grazing pressure, and there was no ideal level of stocking rate. Soil bulk density (top 7 cm) increased from 1.2 g cm-3 under 7 sheep ha-1 to 1.4 g cm-2 under 21 sheep ha-1. Exp.-2 was carried out on a Lotononis/Pangola sward using Edmond's... MenosThe productivity and persistence of Lotononis bainesii cv. Miles grown with Digitaria decumbens cv. pangola was studied in two field experiments (exp.-1 grazing intensity, and exp.-2 treading), conducted at the University of Queensland Research Station at Mt. Cotton, on a red-yellow podzolic soil. A glasshouse experiment (exp.-3 shading) at St. Lucia contrasted the shade tolerance of the two species. Exp.-1 lasted two years, and comprised 4 stocking rates (7, 14, 21 and 28 sheep ha-1); six replicates were grazed in rotation (3 days on, 15 days off). Pasture dry matter yields and botanical composition were assessed three-monthly, and Lotononis demography was monitored by tagging individual plants in permanent quadrats, core sampling for stolon nodal root population and soil seed reserves (flotation recovery); in addition, soil bulk density was estimated. Lotononis did not persist under grazing regardless of stockinh rate. It behaved as a short-lived plant, predominantly annual, with some (insufficient) vegetative perennation (stolon rooted units) under heavy grazing. Soil seed reserves were 550 seeds m-2 (1.6 kg ha -1) under 21-28 sheep ha-1, compared to 4500 seeds m-2 (13 kg ha-1) under lenient grazing. Lotononis failed to regenerate under Pangola shading/or inopportune high grazing pressure, and there was no ideal level of stocking rate. Soil bulk density (top 7 cm) increased from 1.2 g cm-3 under 7 sheep ha-1 to 1.4 g cm-2 under 21 sheep ha-1. Exp.-2 was carried out on a L... Mostrar Tudo |
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Palavras-Chave: |
Growth; Pasture; Plant; Production. |
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Thesagro: |
Agronomia; Crescimento; Digitaria Decumbens; Pastagem; Planta; População; Produção. |
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Thesaurus Nal: |
Lotononis bainesii; population. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02324nam a2200289 a 4500
001 1323175
005 2014-01-15
008 1979 bl uuuu m 00u1 u #d
100 1 $aPOTT, A.
245 $aEffects of sheep grazing and treading, and of shading on the growth and population dynamics of Lotonomis bainesii grown with Digitaria decumbens.
260 $aAustralia: University Queensland$c1979
300 $a241p.
500 $aTese Mestrado.
520 $aThe productivity and persistence of Lotononis bainesii cv. Miles grown with Digitaria decumbens cv. pangola was studied in two field experiments (exp.-1 grazing intensity, and exp.-2 treading), conducted at the University of Queensland Research Station at Mt. Cotton, on a red-yellow podzolic soil. A glasshouse experiment (exp.-3 shading) at St. Lucia contrasted the shade tolerance of the two species. Exp.-1 lasted two years, and comprised 4 stocking rates (7, 14, 21 and 28 sheep ha-1); six replicates were grazed in rotation (3 days on, 15 days off). Pasture dry matter yields and botanical composition were assessed three-monthly, and Lotononis demography was monitored by tagging individual plants in permanent quadrats, core sampling for stolon nodal root population and soil seed reserves (flotation recovery); in addition, soil bulk density was estimated. Lotononis did not persist under grazing regardless of stockinh rate. It behaved as a short-lived plant, predominantly annual, with some (insufficient) vegetative perennation (stolon rooted units) under heavy grazing. Soil seed reserves were 550 seeds m-2 (1.6 kg ha -1) under 21-28 sheep ha-1, compared to 4500 seeds m-2 (13 kg ha-1) under lenient grazing. Lotononis failed to regenerate under Pangola shading/or inopportune high grazing pressure, and there was no ideal level of stocking rate. Soil bulk density (top 7 cm) increased from 1.2 g cm-3 under 7 sheep ha-1 to 1.4 g cm-2 under 21 sheep ha-1. Exp.-2 was carried out on a Lotononis/Pangola sward using Edmond's...
650 $aLotononis bainesii
650 $apopulation
650 $aAgronomia
650 $aCrescimento
650 $aDigitaria Decumbens
650 $aPastagem
650 $aPlanta
650 $aPopulação
650 $aProdução
653 $aGrowth
653 $aPasture
653 $aPlant
653 $aProduction
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sul. |
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Data corrente: |
18/10/2019 |
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Data da última atualização: |
18/10/2019 |
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Tipo da produção científica: |
Artigo de Divulgação na Mídia |
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Autoria: |
COLLARES, R. S.; SUÑÉ, R. W.; YOKOO, M. J. I.; LEAL, J. J. B.; CARDOSO, F. F. |
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Afiliação: |
ROBERTO SILVEIRA COLLARES, CPPSUL; RENATA WOLF SUNE MARTINS DA SILVA, CPPSUL; MARCOS JUN ITI YOKOO, CPPSUL; JOAL JOSE BRAZZALE LEAL, CPPSUL; FERNANDO FLORES CARDOSO, CPPSUL. |
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Título: |
Importância das provas de avaliação a campo e de eficiência alimentar para o melhoramento dos rebanhos. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Revista HB, n. 2, p. 42, 2019. |
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Idioma: |
Português |
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Conteúdo: |
A Embrapa Pecuária Sul em parceria com a Associação Brasileira de Hereford e Braford ? ABHB vem, há vários anos, desenvolvendo ferramentas tecnológicas, para que criadores de gado de corte do Sul do Brasil tomem decisões mais precisas no melhoramento genético dos seus rebanhos... |
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Thesagro: |
Análise; Melhoramento Animal; Performance; Progênie; Seleção. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/203126/1/Collares-et-al-HB-2.pdf
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Marc: |
LEADER 00917nam a2200217 a 4500
001 2113228
005 2019-10-18
008 2019 bl uuuu u00u1 u #d
100 1 $aCOLLARES, R. S.
245 $aImportância das provas de avaliação a campo e de eficiência alimentar para o melhoramento dos rebanhos.$h[electronic resource]
260 $aRevista HB, n. 2, p. 42$c2019
520 $aA Embrapa Pecuária Sul em parceria com a Associação Brasileira de Hereford e Braford ? ABHB vem, há vários anos, desenvolvendo ferramentas tecnológicas, para que criadores de gado de corte do Sul do Brasil tomem decisões mais precisas no melhoramento genético dos seus rebanhos...
650 $aAnálise
650 $aMelhoramento Animal
650 $aPerformance
650 $aProgênie
650 $aSeleção
700 1 $aSUÑÉ, R. W.
700 1 $aYOKOO, M. J. I.
700 1 $aLEAL, J. J. B.
700 1 $aCARDOSO, F. F.
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Embrapa Pecuária Sul (CPPSUL) |
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