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Registro Completo |
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
19/02/2019 |
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Data da última atualização: |
19/02/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
COUTINHO, R. R.; FALEIRO, V. de O.; FARIAS NETO, A. L. de; MENEGUCI, J. L. P.; FREITAS, L. G. |
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Afiliação: |
R. R. COUTINHO, UFV, VICOSA, MG; VALERIA DE OLIVEIRA FALEIRO, CPAMT; AUSTECLINIO LOPES DE FARIAS NETO, CPAMT; JOAO LUIZ PALMA MENEGUCI, CPAMT; L. G. FREITAS, UFV, VICOSA, MG. |
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Título: |
Nematode communities as biological indicators of disturbance in agricultural systems. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Nematropica, v. 48, n. 2, p. 186-197, 2018. |
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Idioma: |
Inglês |
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Conteúdo: |
The native forest area in the Brazilian Cerrado has been replaced by agro-ecosystems and is considered the last agricultural frontier of the country. Thus, the use of sustainable agro-ecosystems can minimize damage to the environment. To assess the sustainability of these systems, there are several types of indicators, including physical, chemical, and biological. Among the biological indicators are nematodes. Thus, the aim of this study was to evaluate nematodes as bio-indicators of disturbance during the establishment of a crop-livestock-forest integrated system (iCLF). Ten farming systems were evaluated (Forest, Crop, Livestock, Crop-Livestock, Livestock-Crop, Crop-Forest, Livestock-Forest, three different Crop-Livestock-Forest, Native Forest, and Spontaneous Vegetation). A native forested area and a spontaneous vegetation area were used as controls (stable environments). Samples were taken at the establishment of the systems and another during the crop season of the second year. The nematode communities were evaluated using total and relative abundance, Shannon-Weaver and Simpson?s diversity indexes and evenness, a wealth index (D), a maturity index (MI), a modified maturity index (MMI), a 2-5 maturity index (MI2-5), and a plant parasite index (PPI). The data were subjected to ANOVA and Tukey's test at 5% (P <0.05) significance in order to identify the effects of treatments on the nematode community. Plant-parasitic nematodes dominated at both harvests. Fungivores and bacterivores were reduced after the implantation. A greater number of representative genera of predatory nematodes were observed in the sampling carried out in the second year of implantation of the systems. Omnivores were slightly reduced under the influence of the Crop-Livestock (CL), the three iCLF systems, and the native forest area. The largest Shannon-Weaver?s diversity index and evenness were found in the Livestock-Forest (LF), the three iCLF systems, and the spontaneous vegetation area. The iCLF systems were the only systems in the second sampling that increased all diversity indexes, evenness and richness, unlike the Crop (C) system and the CL system. A lower MI value was found in the C system. The greatest MI values were observed in the CL, the three iCLF systems, and the spontaneous vegetation area. The maturity indices (MI and MI2-5), modified maturity index (MMI), and plant parasite index (PPI) indexes indicated that the spontaneous vegetation and native forest areas were reference areas with stable environments. In short, diversity measures and other indexes showed that the LF and iCLF systems generated less disturbance to the environment whereas the C system caused major disturbances. MenosThe native forest area in the Brazilian Cerrado has been replaced by agro-ecosystems and is considered the last agricultural frontier of the country. Thus, the use of sustainable agro-ecosystems can minimize damage to the environment. To assess the sustainability of these systems, there are several types of indicators, including physical, chemical, and biological. Among the biological indicators are nematodes. Thus, the aim of this study was to evaluate nematodes as bio-indicators of disturbance during the establishment of a crop-livestock-forest integrated system (iCLF). Ten farming systems were evaluated (Forest, Crop, Livestock, Crop-Livestock, Livestock-Crop, Crop-Forest, Livestock-Forest, three different Crop-Livestock-Forest, Native Forest, and Spontaneous Vegetation). A native forested area and a spontaneous vegetation area were used as controls (stable environments). Samples were taken at the establishment of the systems and another during the crop season of the second year. The nematode communities were evaluated using total and relative abundance, Shannon-Weaver and Simpson?s diversity indexes and evenness, a wealth index (D), a maturity index (MI), a modified maturity index (MMI), a 2-5 maturity index (MI2-5), and a plant parasite index (PPI). The data were subjected to ANOVA and Tukey's test at 5% (P <0.05) significance in order to identify the effects of treatments on the nematode community. Plant-parasitic nematodes dominated at both harvests. Fungivores and ba... Mostrar Tudo |
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Thesagro: |
Nematóide. |
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Thesaurus Nal: |
Disturbed soils. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/193005/1/2018-cpamt-valeria-faleiro-nematoide-biological-indicators-distrubance-agricultural-systems.pdf
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Marc: |
LEADER 03291naa a2200193 a 4500
001 2106220
005 2019-02-19
008 2018 bl uuuu u00u1 u #d
100 1 $aCOUTINHO, R. R.
245 $aNematode communities as biological indicators of disturbance in agricultural systems.$h[electronic resource]
260 $c2018
520 $aThe native forest area in the Brazilian Cerrado has been replaced by agro-ecosystems and is considered the last agricultural frontier of the country. Thus, the use of sustainable agro-ecosystems can minimize damage to the environment. To assess the sustainability of these systems, there are several types of indicators, including physical, chemical, and biological. Among the biological indicators are nematodes. Thus, the aim of this study was to evaluate nematodes as bio-indicators of disturbance during the establishment of a crop-livestock-forest integrated system (iCLF). Ten farming systems were evaluated (Forest, Crop, Livestock, Crop-Livestock, Livestock-Crop, Crop-Forest, Livestock-Forest, three different Crop-Livestock-Forest, Native Forest, and Spontaneous Vegetation). A native forested area and a spontaneous vegetation area were used as controls (stable environments). Samples were taken at the establishment of the systems and another during the crop season of the second year. The nematode communities were evaluated using total and relative abundance, Shannon-Weaver and Simpson?s diversity indexes and evenness, a wealth index (D), a maturity index (MI), a modified maturity index (MMI), a 2-5 maturity index (MI2-5), and a plant parasite index (PPI). The data were subjected to ANOVA and Tukey's test at 5% (P <0.05) significance in order to identify the effects of treatments on the nematode community. Plant-parasitic nematodes dominated at both harvests. Fungivores and bacterivores were reduced after the implantation. A greater number of representative genera of predatory nematodes were observed in the sampling carried out in the second year of implantation of the systems. Omnivores were slightly reduced under the influence of the Crop-Livestock (CL), the three iCLF systems, and the native forest area. The largest Shannon-Weaver?s diversity index and evenness were found in the Livestock-Forest (LF), the three iCLF systems, and the spontaneous vegetation area. The iCLF systems were the only systems in the second sampling that increased all diversity indexes, evenness and richness, unlike the Crop (C) system and the CL system. A lower MI value was found in the C system. The greatest MI values were observed in the CL, the three iCLF systems, and the spontaneous vegetation area. The maturity indices (MI and MI2-5), modified maturity index (MMI), and plant parasite index (PPI) indexes indicated that the spontaneous vegetation and native forest areas were reference areas with stable environments. In short, diversity measures and other indexes showed that the LF and iCLF systems generated less disturbance to the environment whereas the C system caused major disturbances.
650 $aDisturbed soils
650 $aNematóide
700 1 $aFALEIRO, V. de O.
700 1 $aFARIAS NETO, A. L. de
700 1 $aMENEGUCI, J. L. P.
700 1 $aFREITAS, L. G.
773 $tNematropica$gv. 48, n. 2, p. 186-197, 2018.
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Registro original: |
Embrapa Agrossilvipastoril (CPAMT) |
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Biblioteca |
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Origem |
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Classificação |
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Registro |
Volume |
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Registro Completo
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Biblioteca(s): |
Embrapa Algodão. |
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Data corrente: |
19/08/1993 |
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Data da última atualização: |
05/11/2014 |
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Autoria: |
CRISOSTOMO, J. R.; BANDEIRA, C. T. |
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Título: |
Proposicoes sobre a melhoria da cultura algodoeira no Ceara. |
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Ano de publicação: |
1983 |
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Fonte/Imprenta: |
Campina Grande: EMBRAPA-CNPA, 1983. |
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Páginas: |
16p. |
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Série: |
(EMBRAPA.CNPA. Documentos, 26). |
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Idioma: |
Português |
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Conteúdo: |
Introdução; Proposições; Anexos. |
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Palavras-Chave: |
Algodoeiro; Brasil; Ceara; CNPA; EMBRAPA; Para; Perennial; Rasga letra; Verdao. |
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Thesagro: |
Algodão; Gossypium Hirsutum; Melhoramento; Melhoramento Genético Vegetal. |
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Thesaurus NAL: |
breeding; Cotton. |
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Categoria do assunto: |
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A Sistemas de Cultivo |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/111054/1/DOC26.pdf
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Marc: |
LEADER 00837nam a2200325 a 4500
001 1262634
005 2014-11-05
008 1983 bl uuuu u0uu1 u #d
100 1 $aCRISOSTOMO, J. R.
245 $aProposicoes sobre a melhoria da cultura algodoeira no Ceara.
260 $aCampina Grande: EMBRAPA-CNPA$c1983
300 $a16p.
490 $a(EMBRAPA.CNPA. Documentos, 26).
520 $aIntrodução; Proposições; Anexos.
650 $abreeding
650 $aCotton
650 $aAlgodão
650 $aGossypium Hirsutum
650 $aMelhoramento
650 $aMelhoramento Genético Vegetal
653 $aAlgodoeiro
653 $aBrasil
653 $aCeara
653 $aCNPA
653 $aEMBRAPA
653 $aPara
653 $aPerennial
653 $aRasga letra
653 $aVerdao
700 1 $aBANDEIRA, C. T.
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Embrapa Algodão (CNPA) |
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