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Registro Completo |
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
06/03/2017 |
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Data da última atualização: |
06/03/2017 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
PEDREIRA, B. C. e; RESENDE, F. M.; BOURSCHEIDT, M. L. B.; DEVENS, J.; HOLSCHUCH, S. G.; SANTOS, M. L.; CAVALLI, J.; MOMBACH, M. A.; PEREIRA, D. H. |
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Afiliação: |
BRUNO CARNEIRO E PEDREIRA, CPAMT; FABRICIO M. RESENDE, UFMT-SINOP; MAIRA L. B. BOURSCHEIDT, UFMT-SINOP; JOSIANE DEVENS, UFMT-SINOP; SOLANGE G. HOLSCHUCH, USP-ESALQ; MARIELY L. SANTOS, UFMT-SINOP; JOSIANA CAVALLI, UFMT-SINOP; MIRCÉIA A. MOMBACH, UFMT-SINOP; DALTON H. PEREIRA, UFMT-SINOP. |
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Título: |
Accumulation and forage accumulation rate of new grasses in Mato Grosso. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 53., 2016, Gramado. Produção animal para as novas gerações: anais. Gramado: SBZ, 2016. Não paginado. |
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Idioma: |
Inglês |
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Conteúdo: |
The Brazilian livestock production is pasture-based, requiring more technologies that allow to increase productivity with efficiency. This study aimed to evaluate the agronomic performance of tropical grasses. The experiment was carried out at Embrapa Agrossilvipastoril in Sinop-MT from mar/2015 to mar/2016. The experiment was a randomized complete block design with three treatments and three replications (24 m2). The treatments were cultivars: Guara (Paspalum regnellii cv. BRS Guara), Tupi (Brachiaria humidicola cv. Tupi) and Marandu (Brachiaria brizantha cv. Marandu). Pastures were fertilized with 80, 140 and 140 kg ha-1.year of N, P and K, respectively. In each cycle, forage mass (FM) was quantified by clipping two quadrat samples (0.5 by 1 m) per plot at 12 cm height. The fixed rest period was used as harvest strategy, allowing 28 or 42 days, in the rainy or dry season, respectively. Data were analysed using the mixed model method with a special parametric structure in the covariance matrix, through the MIXED procedure of SAS. Treatments means was estimated using ?LSMEANS? and ?PDIFF? was used to analyze means. Significance was detected at the 0.05 level of probability. There was a significant interaction between cultivar x season for forage accumulation (FA) (P<0.01) and forage accumulation rate (FAR) (P<0.05). Guará showed higher FA and FAR (P<0.05) in autumn and summer (5,280; 5,390 kg ha-1; 56.8, 64.1 kg ha-1.d), followed by spring (3,240 kg ha-1, 35.9 kg ha-1.d) and lower in winter (216 kg ha-1, 2.2 kg ha-1.d). Tupi showed higher FA (P<0.05) in summer (5,260), followed by spring (3,800) and less to autumn (2,920), and during winter there is no FA. Similar responses for FAR (62.6, 42.3 and 31.3 kg ha-1.d, respectively). Marandu provided greater FA (P<0.05) in the summer (4,870 kg ha-1), with similar values between autumn and spring (4,260 and 3,740 kg ha-1) and lower for winter (151 kg ha-1). The highest rates were measured in summer, followed by autumn and spring and lower in winter (57.9; 45.8; 41.5 and 1.6 kg ha-1.d, respectively). Comparing the three cultivars in the seasons, the FA varied only in autumn (P<0.05), when Guara was the most productivity, with 23% and 80% more forage produced than Maradu and Tupi, respectively. Guara has potential of production similar to Marandu, excepted during the autumn when was better. Guara can be an alternative as a forage grass in the Brazilian livestock production. MenosThe Brazilian livestock production is pasture-based, requiring more technologies that allow to increase productivity with efficiency. This study aimed to evaluate the agronomic performance of tropical grasses. The experiment was carried out at Embrapa Agrossilvipastoril in Sinop-MT from mar/2015 to mar/2016. The experiment was a randomized complete block design with three treatments and three replications (24 m2). The treatments were cultivars: Guara (Paspalum regnellii cv. BRS Guara), Tupi (Brachiaria humidicola cv. Tupi) and Marandu (Brachiaria brizantha cv. Marandu). Pastures were fertilized with 80, 140 and 140 kg ha-1.year of N, P and K, respectively. In each cycle, forage mass (FM) was quantified by clipping two quadrat samples (0.5 by 1 m) per plot at 12 cm height. The fixed rest period was used as harvest strategy, allowing 28 or 42 days, in the rainy or dry season, respectively. Data were analysed using the mixed model method with a special parametric structure in the covariance matrix, through the MIXED procedure of SAS. Treatments means was estimated using ?LSMEANS? and ?PDIFF? was used to analyze means. Significance was detected at the 0.05 level of probability. There was a significant interaction between cultivar x season for forage accumulation (FA) (P<0.01) and forage accumulation rate (FAR) (P<0.05). Guará showed higher FA and FAR (P<0.05) in autumn and summer (5,280; 5,390 kg ha-1; 56.8, 64.1 kg ha-1.d), followed by spring (3,240 kg ha-1, 35.9 kg ha-1.d) and... Mostrar Tudo |
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Palavras-Chave: |
Guara; Marandu; Tupi. |
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Thesaurus Nal: |
Amazonia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03259nam a2200253 a 4500
001 2066363
005 2017-03-06
008 2016 bl uuuu u0uu1 u #d
100 1 $aPEDREIRA, B. C. e
245 $aAccumulation and forage accumulation rate of new grasses in Mato Grosso.
260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 53., 2016, Gramado. Produção animal para as novas gerações: anais. Gramado: SBZ, 2016. Não paginado.$c2016
520 $aThe Brazilian livestock production is pasture-based, requiring more technologies that allow to increase productivity with efficiency. This study aimed to evaluate the agronomic performance of tropical grasses. The experiment was carried out at Embrapa Agrossilvipastoril in Sinop-MT from mar/2015 to mar/2016. The experiment was a randomized complete block design with three treatments and three replications (24 m2). The treatments were cultivars: Guara (Paspalum regnellii cv. BRS Guara), Tupi (Brachiaria humidicola cv. Tupi) and Marandu (Brachiaria brizantha cv. Marandu). Pastures were fertilized with 80, 140 and 140 kg ha-1.year of N, P and K, respectively. In each cycle, forage mass (FM) was quantified by clipping two quadrat samples (0.5 by 1 m) per plot at 12 cm height. The fixed rest period was used as harvest strategy, allowing 28 or 42 days, in the rainy or dry season, respectively. Data were analysed using the mixed model method with a special parametric structure in the covariance matrix, through the MIXED procedure of SAS. Treatments means was estimated using ?LSMEANS? and ?PDIFF? was used to analyze means. Significance was detected at the 0.05 level of probability. There was a significant interaction between cultivar x season for forage accumulation (FA) (P<0.01) and forage accumulation rate (FAR) (P<0.05). Guará showed higher FA and FAR (P<0.05) in autumn and summer (5,280; 5,390 kg ha-1; 56.8, 64.1 kg ha-1.d), followed by spring (3,240 kg ha-1, 35.9 kg ha-1.d) and lower in winter (216 kg ha-1, 2.2 kg ha-1.d). Tupi showed higher FA (P<0.05) in summer (5,260), followed by spring (3,800) and less to autumn (2,920), and during winter there is no FA. Similar responses for FAR (62.6, 42.3 and 31.3 kg ha-1.d, respectively). Marandu provided greater FA (P<0.05) in the summer (4,870 kg ha-1), with similar values between autumn and spring (4,260 and 3,740 kg ha-1) and lower for winter (151 kg ha-1). The highest rates were measured in summer, followed by autumn and spring and lower in winter (57.9; 45.8; 41.5 and 1.6 kg ha-1.d, respectively). Comparing the three cultivars in the seasons, the FA varied only in autumn (P<0.05), when Guara was the most productivity, with 23% and 80% more forage produced than Maradu and Tupi, respectively. Guara has potential of production similar to Marandu, excepted during the autumn when was better. Guara can be an alternative as a forage grass in the Brazilian livestock production.
650 $aAmazonia
653 $aGuara
653 $aMarandu
653 $aTupi
700 1 $aRESENDE, F. M.
700 1 $aBOURSCHEIDT, M. L. B.
700 1 $aDEVENS, J.
700 1 $aHOLSCHUCH, S. G.
700 1 $aSANTOS, M. L.
700 1 $aCAVALLI, J.
700 1 $aMOMBACH, M. A.
700 1 $aPEREIRA, D. H.
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Registro original: |
Embrapa Agrossilvipastoril (CPAMT) |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
07/12/2012 |
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Data da última atualização: |
01/04/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
CARVALHO, T. C. de; KRZYZANOWSKI, F. C.; OHLSON, O. de C.; PANOBIANCO, M. |
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Afiliação: |
UFPR; FRANCISCO CARLOS KRZYZANOWSKI, CNPSO; OSVALDO DE CASTRO OHLSON, CLASPAR; MARISTELA PANOBIANCO, UFPR. |
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Título: |
Improved assessment of wheat seeds vigor. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Ciência e Agrotecnologia, Lavras, v. 36, n. 6, p. 608-614, nov./dez. 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
The tetrazolium test is widely used for seed vigor assessment of various plant species. For wheat, however, there is no methodology specifically recommended. This study aimed at determining an efficient procedure to evaluate vigor of wheat seeds by this test; besides allowing the establishment of seed quality classes. Thus, four different wheat seed lots were assessed by determining the moisture content and through tests of germination, accelerated aging, and field seedling emergence. The following methodologies were assessed: 1) longitudinal bisection of seed, with subsequent placement of the two halves on filter paper moistened with a 1.0% tetrazolium solution, at 30º C, for 2 h; 2) longitudinal bisection, with subsequent immersion of one seed half into a 1.0% tetrazolium solution, at 30º C, for 3 h; and 3) longitudinal bisection, with subsequent immersion of one seed half into a 0.075% tetrazolium solution, at 40º C, for 2 h. It was concluded that the tetrazolium test is more efficient in evaluating wheat seed vigor when performed with immersion of one half of the seed into a 0.075% tetrazolium solution (40º C, for 2 h) or a 0.1% tetrazolium solution (30º C, during 3 h); allowing to sort seeds into four quality classes. |
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Thesagro: |
Qualidade; Semente; Trigo. |
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Thesaurus NAL: |
Seed quality; Wheat. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/80178/1/improved.krzyzanowski.2012.pdf
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Marc: |
LEADER 01838naa a2200217 a 4500
001 1941746
005 2013-04-01
008 2012 bl uuuu u00u1 u #d
100 1 $aCARVALHO, T. C. de
245 $aImproved assessment of wheat seeds vigor.$h[electronic resource]
260 $c2012
520 $aThe tetrazolium test is widely used for seed vigor assessment of various plant species. For wheat, however, there is no methodology specifically recommended. This study aimed at determining an efficient procedure to evaluate vigor of wheat seeds by this test; besides allowing the establishment of seed quality classes. Thus, four different wheat seed lots were assessed by determining the moisture content and through tests of germination, accelerated aging, and field seedling emergence. The following methodologies were assessed: 1) longitudinal bisection of seed, with subsequent placement of the two halves on filter paper moistened with a 1.0% tetrazolium solution, at 30º C, for 2 h; 2) longitudinal bisection, with subsequent immersion of one seed half into a 1.0% tetrazolium solution, at 30º C, for 3 h; and 3) longitudinal bisection, with subsequent immersion of one seed half into a 0.075% tetrazolium solution, at 40º C, for 2 h. It was concluded that the tetrazolium test is more efficient in evaluating wheat seed vigor when performed with immersion of one half of the seed into a 0.075% tetrazolium solution (40º C, for 2 h) or a 0.1% tetrazolium solution (30º C, during 3 h); allowing to sort seeds into four quality classes.
650 $aSeed quality
650 $aWheat
650 $aQualidade
650 $aSemente
650 $aTrigo
700 1 $aKRZYZANOWSKI, F. C.
700 1 $aOHLSON, O. de C.
700 1 $aPANOBIANCO, M.
773 $tCiência e Agrotecnologia, Lavras$gv. 36, n. 6, p. 608-614, nov./dez. 2012.
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