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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Ocidental. Para informações adicionais entre em contato com cpaa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
07/02/2018 |
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Data da última atualização: |
02/05/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GUERREIRO, Q. L. de M.; OLIVEIRA JUNIOR, R. C. de; RUIVO, M. de L. P.; SILVA, K. E. da; BELDINI, T. P.; GUEDES, M. C.; MOTA, A. F. L.; MORAES, B. L. T. de; SANTOS, P. R. B.; DUIN, I. M. |
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Afiliação: |
Quêzia Leandro de Moura Guerreiro, UFPA; RAIMUNDO COSME DE OLIVEIRA JUNIOR, CPATU; Maria de Lourdes Pinheiro Ruivo, MPEG; KATIA EMIDIO DA SILVA, CPAA; Troy Patrick Beldini, UFOPA; MARCELINO CARNEIRO GUEDES, CPAF-AP; Amanda Fabricia Leão Mota, UFOPA; Brenda Lohana Teixeira de Moraes, UFOPA; Paulo Roberto Brasil Santos, UFOPA; Izabela Moura Duin, IAPAR. |
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Título: |
Litter production in a natural stand of Brazil nut trees (Bertholletia excelsa Bonpl.). |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
African Journal of Agricultural Research, v. 13, n. 5, p. 228-238, Feb. 2018. |
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DOI: |
10.5897/AJAR2017.12856 |
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Idioma: |
Inglês |
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Notas: |
Article Number: 1A6396E55865. |
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Conteúdo: |
This research estimated litter production and analyzed its relation to environmental variables such as maximum temperature, insolation, and rainfall. The study was conducted on a 300 × 300 m experiment as part of the project titled mapping of native Brazil nut stands and socio-environmental and economic characterization of Brazil nut production systems (MapCast), in the Tapajós National Forest (FLONA Tapajós). Every 30 days for one full year (August 2015 to July 2016), litterfall was collected and stored in a laboratory. After drying, the material was separated into leaves, wood, flowers and fruits, and miscellaneous and weighed. Statistical tests conducted were Shapiro-Wilk (5%), Principal coordinate analysis, t-test, Pearson?s linear correlation, cross-correlation, and canonical redundancy analysis. Rainfall and temperature data were inferior and superior, respectively, to normal climate conditions in the region, and data for solar insolation had an abnormal pattern compared to normal climate conditions. Leaf production varied between 169.9 and 965.6 kg ha-1 month-1, and that of wood between 26.7 and 501.3 kg ha-1 month-1, while that for flowers and fruit varied from 0.6 to 19.6 kg ha-1 month-1. The greatest leaf production was measured during the months with the lowest amount of rainfall and highest temperatures, and variation in leaf production and total litterfall was partially explained by temperature and insolation. |
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Palavras-Chave: |
Castanha-do-brasil; Lixo. |
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Thesagro: |
Meio Ambiente; Produção. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02370naa a2200301 a 4500
001 2087280
005 2018-05-02
008 2018 bl --- 0-- u #d
024 7 $a10.5897/AJAR2017.12856$2DOI
100 1 $aGUERREIRO, Q. L. de M.
245 $aLitter production in a natural stand of Brazil nut trees (Bertholletia excelsa Bonpl.).$h[electronic resource]
260 $c2018
500 $aArticle Number: 1A6396E55865.
520 $aThis research estimated litter production and analyzed its relation to environmental variables such as maximum temperature, insolation, and rainfall. The study was conducted on a 300 × 300 m experiment as part of the project titled mapping of native Brazil nut stands and socio-environmental and economic characterization of Brazil nut production systems (MapCast), in the Tapajós National Forest (FLONA Tapajós). Every 30 days for one full year (August 2015 to July 2016), litterfall was collected and stored in a laboratory. After drying, the material was separated into leaves, wood, flowers and fruits, and miscellaneous and weighed. Statistical tests conducted were Shapiro-Wilk (5%), Principal coordinate analysis, t-test, Pearson?s linear correlation, cross-correlation, and canonical redundancy analysis. Rainfall and temperature data were inferior and superior, respectively, to normal climate conditions in the region, and data for solar insolation had an abnormal pattern compared to normal climate conditions. Leaf production varied between 169.9 and 965.6 kg ha-1 month-1, and that of wood between 26.7 and 501.3 kg ha-1 month-1, while that for flowers and fruit varied from 0.6 to 19.6 kg ha-1 month-1. The greatest leaf production was measured during the months with the lowest amount of rainfall and highest temperatures, and variation in leaf production and total litterfall was partially explained by temperature and insolation.
650 $aMeio Ambiente
650 $aProdução
653 $aCastanha-do-brasil
653 $aLixo
700 1 $aOLIVEIRA JUNIOR, R. C. de
700 1 $aRUIVO, M. de L. P.
700 1 $aSILVA, K. E. da
700 1 $aBELDINI, T. P.
700 1 $aGUEDES, M. C.
700 1 $aMOTA, A. F. L.
700 1 $aMORAES, B. L. T. de
700 1 $aSANTOS, P. R. B.
700 1 $aDUIN, I. M.
773 $tAfrican Journal of Agricultural Research$gv. 13, n. 5, p. 228-238, Feb. 2018.
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sul. Para informações adicionais entre em contato com cppsul.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sul. |
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Data corrente: |
08/04/2021 |
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Data da última atualização: |
08/04/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
BASTIANI, M. O.; ROMA-BURGOS, N.; LANGARO, A. C.; SALAS-PEREZ, R. A.; ROUSE, C. E.; FIPKE, M. V.; LAMEGO, F. P. |
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Afiliação: |
MARLON O. BASTIANI, UFPEL; NILDA ROMA-BURGOS, University of Arkansas; ANA C. LANGARO, UFV; REIOFELI A. SALAS-PEREZ, University of Arkansas; CHRISTOPHER E. ROUSE, University of Arkansas; MARCUS V. FIPKE, UFPEL; FABIANE PINTO LAMEGO, CPPSUL. |
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Título: |
Ammonium sulfate improves the efficacy of glyphosate on South African lovegrass (Eragrostis plana) under water stress. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Weed Science, v. 69, n. 2, p. 167-176, Mar. 2021. |
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Idioma: |
Inglês |
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Conteúdo: |
South African lovegrass (Eragrostis planaNees) is the most important weed of native pastures insouthern Brazil. Management options are limited under water-stress conditions, and glyphosatehas been the main tool for control. This study compared four salts of glyphosate applied at threegrowth stages and determined the glyphosate tolerance level. In addition, the performance ofammonium sulfate (AMS) under two soil moisture conditions (50% and 100% of water-holdingcapacity) and the effect of AMS on absorption and translocation of radiolabeled [14C]glyphosatewere evaluated. The potassium salt of glyphosate had the fastest activity across growth stages ofE. plana, which is more vulnerable to glyphosate at the panicle initiation stage. Isopropylaminesalt was the slowest-acting glyphosate formulation. Younger plants were typically more easilycontrolled than older plants at the full tillering stage. The addition of AMS increased the level ofcontrol of drought-stressedE. planacompared with glyphosate alone by increasing transloca-tion out of the treated leaf and consequently increasing the concentration of glyphosate in theprimary culm. These data can be used to plan an effective management program forE. planathat takes into account the developmental stage of desired pasture grass species |
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Thesagro: |
Controle Químico; Erva Daninha; Herbicida. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01990naa a2200229 a 4500
001 2131159
005 2021-04-08
008 2021 bl uuuu u00u1 u #d
100 1 $aBASTIANI, M. O.
245 $aAmmonium sulfate improves the efficacy of glyphosate on South African lovegrass (Eragrostis plana) under water stress.$h[electronic resource]
260 $c2021
520 $aSouth African lovegrass (Eragrostis planaNees) is the most important weed of native pastures insouthern Brazil. Management options are limited under water-stress conditions, and glyphosatehas been the main tool for control. This study compared four salts of glyphosate applied at threegrowth stages and determined the glyphosate tolerance level. In addition, the performance ofammonium sulfate (AMS) under two soil moisture conditions (50% and 100% of water-holdingcapacity) and the effect of AMS on absorption and translocation of radiolabeled [14C]glyphosatewere evaluated. The potassium salt of glyphosate had the fastest activity across growth stages ofE. plana, which is more vulnerable to glyphosate at the panicle initiation stage. Isopropylaminesalt was the slowest-acting glyphosate formulation. Younger plants were typically more easilycontrolled than older plants at the full tillering stage. The addition of AMS increased the level ofcontrol of drought-stressedE. planacompared with glyphosate alone by increasing transloca-tion out of the treated leaf and consequently increasing the concentration of glyphosate in theprimary culm. These data can be used to plan an effective management program forE. planathat takes into account the developmental stage of desired pasture grass species
650 $aControle Químico
650 $aErva Daninha
650 $aHerbicida
700 1 $aROMA-BURGOS, N.
700 1 $aLANGARO, A. C.
700 1 $aSALAS-PEREZ, R. A.
700 1 $aROUSE, C. E.
700 1 $aFIPKE, M. V.
700 1 $aLAMEGO, F. P.
773 $tWeed Science$gv. 69, n. 2, p. 167-176, Mar. 2021.
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