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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
30/04/2018 |
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Data da última atualização: |
22/12/2021 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
BASTOS, A. J. R.; PEDROZA NETO, J. L.; SANTOS, T. G. dos; FERNANDES, J. R. Q.; ALVES, R. M. |
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Afiliação: |
Abel Jamir Ribeiro Bastos, GRADUANDO UFRA; Jack Loureiro Pedroza Neto, GRADUANDO UFRA; Thalita Gomes dos Santos, GRADUANDO UFRA; JOSE RAIMUNDO QUADROS FERNANDES, CPATU; RAFAEL MOYSES ALVES, CPATU. |
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Título: |
Seleção de clones de cupuaçuzeiro em plantio comercial no município de Tomé-Açu, Nordeste paraense. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
In: ENCONTRO AMAZÔNICO DE AGRÁRIAS, 9., 2017, Belém, PA. Anais... Belém, PA: UFRA, 2018. |
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Páginas: |
p. 950-955. |
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Idioma: |
Português |
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Notas: |
IX ENAAG. |
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Conteúdo: |
O objetivo do trabalho foi selecionar clones de cupuaçuzeiro mais produtivos e tolerantes à vassoura-de-bruxa, melhorando os índices de produção do cupuaçu. O experimento de clones foi instalado em 2005 e está localizado em uma propriedade de pequeno produtor rural do município de Tomé-Açu - PA. O delineamento experimental utilizado foi em blocos casualizados, com 25 clones de cupuaçuzeiro, cinco repetições e três plantas na parcela. As mudas foram postas em covas espaçadas de 6 x 4 m e consorciadas em Sistema Agroflorestal com pimenteira do reino, bananeira e taperebazeiro no espaçamento de 4 x (2 x 2 m), 6 x 4 m e 30 x 10 m, respectivamente. Foi analisado, primeiramente, o desenvolvimento vegetativo (altura e diâmetro) nos dois primeiros anos e posteriormente iniciou-se a avaliação de produção de seis safras (2010/2011 a 2015/2016), além da ocorrência da doença vassoura-de-bruxa na última das safras. Os dados foram submetidos à análise de variância e as médias comparadas pelo teste de Scott-Knott ao nível de 5% de probabilidade no programa estatístico Genes. Os resultados apresentados não permitiram identificar diferenças estatísticas significativas para as variáveis relacionadas ao desenvolvimento vegetativo das plantas. A produção de frutos destacou seis clones como os mais produtivos: 4, 6, 7, 8, 9 e 10 com médias de 15,17; 16,73; 19,90; 15,39; 17,49 e 15,94 frutos/planta/safra, respectivamente. A média de frutos do ensaio foi de 11,79 frutos. Média similar também já foi observada em outros plantios da região. Foi verificado baixo percentual de incidência de vassoura-de-bruxa nos clones avaliados com valor máximo registrado de apenas 6,7% de plantas infectadas, de modo que dos 25 clones do ensaio apenas 4 apresentaram sintomas da doença. A avaliação dos clones de cupuaçuzeiro permitiu indicar os materiais 4, 6, 7, 8, 9 e 10 que mostraram ser os mais promissores quanto à produção de frutos, podendo ser incorporados no programa de melhoramento genético da espécie. MenosO objetivo do trabalho foi selecionar clones de cupuaçuzeiro mais produtivos e tolerantes à vassoura-de-bruxa, melhorando os índices de produção do cupuaçu. O experimento de clones foi instalado em 2005 e está localizado em uma propriedade de pequeno produtor rural do município de Tomé-Açu - PA. O delineamento experimental utilizado foi em blocos casualizados, com 25 clones de cupuaçuzeiro, cinco repetições e três plantas na parcela. As mudas foram postas em covas espaçadas de 6 x 4 m e consorciadas em Sistema Agroflorestal com pimenteira do reino, bananeira e taperebazeiro no espaçamento de 4 x (2 x 2 m), 6 x 4 m e 30 x 10 m, respectivamente. Foi analisado, primeiramente, o desenvolvimento vegetativo (altura e diâmetro) nos dois primeiros anos e posteriormente iniciou-se a avaliação de produção de seis safras (2010/2011 a 2015/2016), além da ocorrência da doença vassoura-de-bruxa na última das safras. Os dados foram submetidos à análise de variância e as médias comparadas pelo teste de Scott-Knott ao nível de 5% de probabilidade no programa estatístico Genes. Os resultados apresentados não permitiram identificar diferenças estatísticas significativas para as variáveis relacionadas ao desenvolvimento vegetativo das plantas. A produção de frutos destacou seis clones como os mais produtivos: 4, 6, 7, 8, 9 e 10 com médias de 15,17; 16,73; 19,90; 15,39; 17,49 e 15,94 frutos/planta/safra, respectivamente. A média de frutos do ensaio foi de 11,79 frutos. Média similar também já fo... Mostrar Tudo |
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Palavras-Chave: |
Fruteira nativa; Tomé-Açu. |
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Thesagro: |
Cupuaçu; Fruta Tropical; Produção; Theobroma Grandiflorum. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/176146/1/ANAIS-IX-ENAAG-16.pdf
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Marc: |
LEADER 02850nam a2200253 a 4500
001 2091045
005 2021-12-22
008 2018 bl uuuu u00u1 u #d
100 1 $aBASTOS, A. J. R.
245 $aSeleção de clones de cupuaçuzeiro em plantio comercial no município de Tomé-Açu, Nordeste paraense.$h[electronic resource]
260 $aIn: ENCONTRO AMAZÔNICO DE AGRÁRIAS, 9., 2017, Belém, PA. Anais... Belém, PA: UFRA$c2018
300 $ap. 950-955.
500 $aIX ENAAG.
520 $aO objetivo do trabalho foi selecionar clones de cupuaçuzeiro mais produtivos e tolerantes à vassoura-de-bruxa, melhorando os índices de produção do cupuaçu. O experimento de clones foi instalado em 2005 e está localizado em uma propriedade de pequeno produtor rural do município de Tomé-Açu - PA. O delineamento experimental utilizado foi em blocos casualizados, com 25 clones de cupuaçuzeiro, cinco repetições e três plantas na parcela. As mudas foram postas em covas espaçadas de 6 x 4 m e consorciadas em Sistema Agroflorestal com pimenteira do reino, bananeira e taperebazeiro no espaçamento de 4 x (2 x 2 m), 6 x 4 m e 30 x 10 m, respectivamente. Foi analisado, primeiramente, o desenvolvimento vegetativo (altura e diâmetro) nos dois primeiros anos e posteriormente iniciou-se a avaliação de produção de seis safras (2010/2011 a 2015/2016), além da ocorrência da doença vassoura-de-bruxa na última das safras. Os dados foram submetidos à análise de variância e as médias comparadas pelo teste de Scott-Knott ao nível de 5% de probabilidade no programa estatístico Genes. Os resultados apresentados não permitiram identificar diferenças estatísticas significativas para as variáveis relacionadas ao desenvolvimento vegetativo das plantas. A produção de frutos destacou seis clones como os mais produtivos: 4, 6, 7, 8, 9 e 10 com médias de 15,17; 16,73; 19,90; 15,39; 17,49 e 15,94 frutos/planta/safra, respectivamente. A média de frutos do ensaio foi de 11,79 frutos. Média similar também já foi observada em outros plantios da região. Foi verificado baixo percentual de incidência de vassoura-de-bruxa nos clones avaliados com valor máximo registrado de apenas 6,7% de plantas infectadas, de modo que dos 25 clones do ensaio apenas 4 apresentaram sintomas da doença. A avaliação dos clones de cupuaçuzeiro permitiu indicar os materiais 4, 6, 7, 8, 9 e 10 que mostraram ser os mais promissores quanto à produção de frutos, podendo ser incorporados no programa de melhoramento genético da espécie.
650 $aCupuaçu
650 $aFruta Tropical
650 $aProdução
650 $aTheobroma Grandiflorum
653 $aFruteira nativa
653 $aTomé-Açu
700 1 $aPEDROZA NETO, J. L.
700 1 $aSANTOS, T. G. dos
700 1 $aFERNANDES, J. R. Q.
700 1 $aALVES, R. M.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
20/12/2023 |
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Data da última atualização: |
20/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 4 |
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Autoria: |
SCERVINO, R. P.; CANTO, L. L. R. P. do; QUEIROGA, J. L. de. |
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Afiliação: |
RENATA PICOLO SCERVINO, SECRETARIA DE EDUCAÇÃO DO ESTADO DO PARANÁ; LAÍSSA LEONIS ROCHA PINTERICH DO CANTO, HIGHBRIDGE MATERIALS CONSULTING; JOEL LEANDRO DE QUEIROGA, CNPMA. |
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Título: |
Tree diversity in riparian forests immersed in a pasture with Urochloa decumbens (Stapf) R.D. Webster (Poaceae) grass under domain of the Atlantic Forest, Brazil |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Brazilian Journal of Animal and Environmental Research, v. 6, n. 1, p. 313-334, 2023. |
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ISSN: |
2595-573X |
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DOI: |
https://dx.doi.org/10.34188/bjaerv6n1-028 |
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Idioma: |
Português |
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Conteúdo: |
Abstract: The riparian vegetation along water courses and the health of the river’s basin, regarding the aquatic and terrestrial ecosystems associated with them, are widely discussed in literature. However, the maintenance of the services and the conservation role that riparian forests provide to flora and fauna may be affected by the regional matrix that surrounds the water course and by the length and composition of the riparian vegetation associated with them. This study aimed to evaluate the relationships among the grass cover and arboreal species diversity in three watercourses surrounded by a pasture dominated with the alien grass Uroclhoa decumbens (Stapf) R.D. Webster (former Brachiaria decumbens). Two hypotheses were tested: (i) watercourses with larger riparian forest width present higher richness and abundance of native and zoochoric tree species and those associated to late succession stages, and (ii) watercourses with larger riparian forest width present a lower grass cover on their interior. The study was conducted under domain of Semideciduous Seasonal Forest, belonging to the Atlantic Forest biome, municipality of Londrina, Paraná State, south Brazil. The regional climate is Köppen’s Cfa humid subtropical. The soil is classified as a mosaic of eutroferric red nitosols and lithosols. The studied sites mostly comprise pasture with U. decumbens alien grass and small patches of woody vegetation amidst an open pasture dominated by species attributed to the first’s stages of secondary succession. The studied site is immersed in Cambé’s River watershed and contain three watercourses, Cristal River, tributary to São Lourenço River, that, in turn, is tributary to Cambé River. All watercourses are classified as small rivers (Brazilian Forestry Code, federal law: n. 12.651/2012), with length inferior to 10 m between both riversides. The riparian vegetation shares similar characteristics and structure, encompassing woody vegetation with pioneer trees species and high canopy openness. All riparian forests are immersed in pastures with U. decumbens grass. Transects of 200 meters long, measuring one meter wide from the line on both sides of the transect, and one square plot (25 m2) were allocated on the interior of each riparian forest. Transects were evaluated as arboreal species richness and the length of the riparian forest strip. In each plot, the arboreal vegetation was inventoried as species richness, abundance and density, and the U. decumbens cover was measured. The riparian forest width was arranged in two classes, forests with width ≤ 5 m or ≥ 10 m. The studied forests were compared as richness, abundance, density, and grass cover. The correlations among the riparian vegetation with the forest width and grass coverage (%) were evaluated. Species richness, abundance and density did not differ among the watercourses. However, species abundance and density presented positive correlations with the riparian forest width, indicating that the larger is the riparian vegetation, the higher is the species density. Grass cover presents a strong negative correlation with the riparian forest width, indicating that narrow strips of woody vegetation present higher grass cover. A high positive correlation was observed with riparian strip width and native trees, suggesting that native woody species establishment is limited by the riparian strip width and that those rustic trees species are more capable to colonize these environments. Also, the correlation found with species that present abiotic syndromes and pioneer species indicates that trees that can colonize open areas are more suitable to establish on narrow strips of vegetation amidst a pasture. The relationships observed with zoochoric trees suggests that the fauna that visits these forests are tolerant to open areas and visit these areas independently of their vegetation width. The larger riparian forests present lower grass cover and these can be related to shadow micro-sites that reduce the luminosity which can affect the permanence potential of the dominance of U. decumbens. In this way, the data suggests that few plants can establish in these pasture landscape, and those more rustic trees which are able to establish under open areas, high grass cover and canopy openness, and that re-sprout after a fire, became more dominant. For these watercourses, with narrow riparian vegetation strips surrounded by an U. decumbens pasture, the high grass cover can restrict and plant diversity, acting on the course and velocity of secondary succession in these areas. MenosAbstract: The riparian vegetation along water courses and the health of the river’s basin, regarding the aquatic and terrestrial ecosystems associated with them, are widely discussed in literature. However, the maintenance of the services and the conservation role that riparian forests provide to flora and fauna may be affected by the regional matrix that surrounds the water course and by the length and composition of the riparian vegetation associated with them. This study aimed to evaluate the relationships among the grass cover and arboreal species diversity in three watercourses surrounded by a pasture dominated with the alien grass Uroclhoa decumbens (Stapf) R.D. Webster (former Brachiaria decumbens). Two hypotheses were tested: (i) watercourses with larger riparian forest width present higher richness and abundance of native and zoochoric tree species and those associated to late succession stages, and (ii) watercourses with larger riparian forest width present a lower grass cover on their interior. The study was conducted under domain of Semideciduous Seasonal Forest, belonging to the Atlantic Forest biome, municipality of Londrina, Paraná State, south Brazil. The regional climate is Köppen’s Cfa humid subtropical. The soil is classified as a mosaic of eutroferric red nitosols and lithosols. The studied sites mostly comprise pasture with U. decumbens alien grass and small patches of woody vegetation amidst an open pasture dominated by species attributed to the first’s... Mostrar Tudo |
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Palavras-Chave: |
Alien grass; Grass cover; Riparian forest width. |
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Thesagro: |
Biodiversidade; Capim Brachiaria; Floresta; Impacto Ambiental; Mata Ciliar. |
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Thesaurus NAL: |
natural regeneration. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1160120/1/Queiroga-Tree-diversity-2023.pdf
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Marc: |
LEADER 05549naa a2200277 a 4500
001 2160120
005 2023-12-20
008 2023 bl uuuu u00u1 u #d
022 $a2595-573X
024 7 $ahttps://dx.doi.org/10.34188/bjaerv6n1-028$2DOI
100 1 $aSCERVINO, R. P.
245 $aTree diversity in riparian forests immersed in a pasture with Urochloa decumbens (Stapf) R.D. Webster (Poaceae) grass under domain of the Atlantic Forest, Brazil$h[electronic resource]
260 $c2023
520 $aAbstract: The riparian vegetation along water courses and the health of the river’s basin, regarding the aquatic and terrestrial ecosystems associated with them, are widely discussed in literature. However, the maintenance of the services and the conservation role that riparian forests provide to flora and fauna may be affected by the regional matrix that surrounds the water course and by the length and composition of the riparian vegetation associated with them. This study aimed to evaluate the relationships among the grass cover and arboreal species diversity in three watercourses surrounded by a pasture dominated with the alien grass Uroclhoa decumbens (Stapf) R.D. Webster (former Brachiaria decumbens). Two hypotheses were tested: (i) watercourses with larger riparian forest width present higher richness and abundance of native and zoochoric tree species and those associated to late succession stages, and (ii) watercourses with larger riparian forest width present a lower grass cover on their interior. The study was conducted under domain of Semideciduous Seasonal Forest, belonging to the Atlantic Forest biome, municipality of Londrina, Paraná State, south Brazil. The regional climate is Köppen’s Cfa humid subtropical. The soil is classified as a mosaic of eutroferric red nitosols and lithosols. The studied sites mostly comprise pasture with U. decumbens alien grass and small patches of woody vegetation amidst an open pasture dominated by species attributed to the first’s stages of secondary succession. The studied site is immersed in Cambé’s River watershed and contain three watercourses, Cristal River, tributary to São Lourenço River, that, in turn, is tributary to Cambé River. All watercourses are classified as small rivers (Brazilian Forestry Code, federal law: n. 12.651/2012), with length inferior to 10 m between both riversides. The riparian vegetation shares similar characteristics and structure, encompassing woody vegetation with pioneer trees species and high canopy openness. All riparian forests are immersed in pastures with U. decumbens grass. Transects of 200 meters long, measuring one meter wide from the line on both sides of the transect, and one square plot (25 m2) were allocated on the interior of each riparian forest. Transects were evaluated as arboreal species richness and the length of the riparian forest strip. In each plot, the arboreal vegetation was inventoried as species richness, abundance and density, and the U. decumbens cover was measured. The riparian forest width was arranged in two classes, forests with width ≤ 5 m or ≥ 10 m. The studied forests were compared as richness, abundance, density, and grass cover. The correlations among the riparian vegetation with the forest width and grass coverage (%) were evaluated. Species richness, abundance and density did not differ among the watercourses. However, species abundance and density presented positive correlations with the riparian forest width, indicating that the larger is the riparian vegetation, the higher is the species density. Grass cover presents a strong negative correlation with the riparian forest width, indicating that narrow strips of woody vegetation present higher grass cover. A high positive correlation was observed with riparian strip width and native trees, suggesting that native woody species establishment is limited by the riparian strip width and that those rustic trees species are more capable to colonize these environments. Also, the correlation found with species that present abiotic syndromes and pioneer species indicates that trees that can colonize open areas are more suitable to establish on narrow strips of vegetation amidst a pasture. The relationships observed with zoochoric trees suggests that the fauna that visits these forests are tolerant to open areas and visit these areas independently of their vegetation width. The larger riparian forests present lower grass cover and these can be related to shadow micro-sites that reduce the luminosity which can affect the permanence potential of the dominance of U. decumbens. In this way, the data suggests that few plants can establish in these pasture landscape, and those more rustic trees which are able to establish under open areas, high grass cover and canopy openness, and that re-sprout after a fire, became more dominant. For these watercourses, with narrow riparian vegetation strips surrounded by an U. decumbens pasture, the high grass cover can restrict and plant diversity, acting on the course and velocity of secondary succession in these areas.
650 $anatural regeneration
650 $aBiodiversidade
650 $aCapim Brachiaria
650 $aFloresta
650 $aImpacto Ambiental
650 $aMata Ciliar
653 $aAlien grass
653 $aGrass cover
653 $aRiparian forest width
700 1 $aCANTO, L. L. R. P. do
700 1 $aQUEIROGA, J. L. de
773 $tBrazilian Journal of Animal and Environmental Research$gv. 6, n. 1, p. 313-334, 2023.
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Embrapa Meio Ambiente (CNPMA) |
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