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Registro Completo |
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
07/03/2017 |
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Data da última atualização: |
02/07/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CUSTÓDIO, R. A.; ARAÚJO NETO, S. E. de A.; FERMINO JUNIOR, P. C. P.; ANDRADE NETO, R. de C.; SILVA, I. F. |
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Afiliação: |
Roberto Aparecido Custódio, Prefeitura de Ouro Preto (RO); Sebastião Elviro de Araújo Neto, Universidade Federal do Acre; Paulo César Poeta Fermino Junior, Universidade Federal de Santa Catarina; ROMEU DE CARVALHO ANDRADE NETO, CPAF-Acre; Irene Ferro Silva, Universidade Federal do Acre. |
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Título: |
Morpho-anatomy of leaves and yield of pineapple plant in intercropping with cassava. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Bioscience Journal, Uberlândia, v. 32, n. 4, p. 839-848, July/Aug. 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
The aims of this study were to evaluate the effects of shade in pineapple plant with cassava, on the yields of pineapple fruit sand cassava roots, on the morph-anatomical variation, damage by solar radiation and chlorophyll content of pineapple leaves. Pineapple plants were cultivated in plots comprising three parallel row sunder different shade conditions provided by cassava plants grown at various spacings within single rows located on either side of the plots. The experiment was of a randomized block design with five treatments (cassava spacings of 0.50, 0.75, 1.00 and 1.25 m and a pineapple monoculture) and four replications. Yields of fruits and roots, together with the morphological, chemical and histological characteristics of the "D" leaves of pineapple, were determined14 months after planting the pineapples plant. Data were submitted to analysis of variance with the Scott-Knott test or Friedman test (P< 0.05) and to regression analysis. Pineapple plants grown under the majority of shade conditions presented higher fruit weight and overall yield per hectare in comparison with plants grown in direct sunlight. The maximum productivities of pineapple fruit were achieved when cassava plants were spaced 0.75 m apart and, under these shade conditions, fruits were fully protected against burning by the sun. The ?D? leaves of shaded plants were longer and thicker, with higher content of chlorophyll a and total chlorophyll, reduced stomatal density and dimensions of stomatal pores, narrower guard cells, thinner aquiferous hypodermis, and reduced abaxial and adaxial epidermis. The yield of cassava roots per plant increased linearly with increasing distance between the plants, but the yield per hectare decreased with decreasing plant density. MenosThe aims of this study were to evaluate the effects of shade in pineapple plant with cassava, on the yields of pineapple fruit sand cassava roots, on the morph-anatomical variation, damage by solar radiation and chlorophyll content of pineapple leaves. Pineapple plants were cultivated in plots comprising three parallel row sunder different shade conditions provided by cassava plants grown at various spacings within single rows located on either side of the plots. The experiment was of a randomized block design with five treatments (cassava spacings of 0.50, 0.75, 1.00 and 1.25 m and a pineapple monoculture) and four replications. Yields of fruits and roots, together with the morphological, chemical and histological characteristics of the "D" leaves of pineapple, were determined14 months after planting the pineapples plant. Data were submitted to analysis of variance with the Scott-Knott test or Friedman test (P< 0.05) and to regression analysis. Pineapple plants grown under the majority of shade conditions presented higher fruit weight and overall yield per hectare in comparison with plants grown in direct sunlight. The maximum productivities of pineapple fruit were achieved when cassava plants were spaced 0.75 m apart and, under these shade conditions, fruits were fully protected against burning by the sun. The ?D? leaves of shaded plants were longer and thicker, with higher content of chlorophyll a and total chlorophyll, reduced stomatal density and dimensions of stomatal ... Mostrar Tudo |
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Palavras-Chave: |
Análise de variância; Análisis de regresión; Análisis de varianza; Análisis estadístico; Cultivo intercalar; Friedman Test; Morfoanatomia foliar; Piñas; Radiación solar; Rendimiento de los cultivos; Scott-Knott Test; Sistemas de cultivo; Sombra; Teste de Friedman; Teste de Scott-Knott; Yuca. |
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Thesagro: |
Abacaxi; Ananas comosus; Cultivo intercalado; Mandioca; Manihot esculenta; Método estatístico; Radiação solar; Rendimento; Sistema de cultivo; Sombreamento. |
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Thesaurus Nal: |
Analysis of variance; Cassava; Crop yield; Cropping systems; Intercropping; Pineapples; Regression analysis; Shade; Solar radiation; Statistical analysis. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/157329/1/26268.pdf
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Marc: |
LEADER 03487naa a2200601 a 4500
001 2066474
005 2021-07-02
008 2016 bl uuuu u00u1 u #d
100 1 $aCUSTÓDIO, R. A.
245 $aMorpho-anatomy of leaves and yield of pineapple plant in intercropping with cassava.$h[electronic resource]
260 $c2016
520 $aThe aims of this study were to evaluate the effects of shade in pineapple plant with cassava, on the yields of pineapple fruit sand cassava roots, on the morph-anatomical variation, damage by solar radiation and chlorophyll content of pineapple leaves. Pineapple plants were cultivated in plots comprising three parallel row sunder different shade conditions provided by cassava plants grown at various spacings within single rows located on either side of the plots. The experiment was of a randomized block design with five treatments (cassava spacings of 0.50, 0.75, 1.00 and 1.25 m and a pineapple monoculture) and four replications. Yields of fruits and roots, together with the morphological, chemical and histological characteristics of the "D" leaves of pineapple, were determined14 months after planting the pineapples plant. Data were submitted to analysis of variance with the Scott-Knott test or Friedman test (P< 0.05) and to regression analysis. Pineapple plants grown under the majority of shade conditions presented higher fruit weight and overall yield per hectare in comparison with plants grown in direct sunlight. The maximum productivities of pineapple fruit were achieved when cassava plants were spaced 0.75 m apart and, under these shade conditions, fruits were fully protected against burning by the sun. The ?D? leaves of shaded plants were longer and thicker, with higher content of chlorophyll a and total chlorophyll, reduced stomatal density and dimensions of stomatal pores, narrower guard cells, thinner aquiferous hypodermis, and reduced abaxial and adaxial epidermis. The yield of cassava roots per plant increased linearly with increasing distance between the plants, but the yield per hectare decreased with decreasing plant density.
650 $aAnalysis of variance
650 $aCassava
650 $aCrop yield
650 $aCropping systems
650 $aIntercropping
650 $aPineapples
650 $aRegression analysis
650 $aShade
650 $aSolar radiation
650 $aStatistical analysis
650 $aAbacaxi
650 $aAnanas comosus
650 $aCultivo intercalado
650 $aMandioca
650 $aManihot esculenta
650 $aMétodo estatístico
650 $aRadiação solar
650 $aRendimento
650 $aSistema de cultivo
650 $aSombreamento
653 $aAnálise de variância
653 $aAnálisis de regresión
653 $aAnálisis de varianza
653 $aAnálisis estadístico
653 $aCultivo intercalar
653 $aFriedman Test
653 $aMorfoanatomia foliar
653 $aPiñas
653 $aRadiación solar
653 $aRendimiento de los cultivos
653 $aScott-Knott Test
653 $aSistemas de cultivo
653 $aSombra
653 $aTeste de Friedman
653 $aTeste de Scott-Knott
653 $aYuca
700 1 $aARAÚJO NETO, S. E. de A.
700 1 $aFERMINO JUNIOR, P. C. P.
700 1 $aANDRADE NETO, R. de C.
700 1 $aSILVA, I. F.
773 $tBioscience Journal, Uberlândia$gv. 32, n. 4, p. 839-848, July/Aug. 2016.
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Registro original: |
Embrapa Acre (CPAF-AC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
14/03/2000 |
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Data da última atualização: |
08/01/2019 |
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Autoria: |
SILVEIRA, A. M.; VICTORIA, R. L.; BALLESTER, M. V.; CAMARGO, P. B. de; MARTINELLI, L. A.; PICCOLO, M. de C. |
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Afiliação: |
ANDRÉA MARIA SILVEIRA, Universidade de São Paulo - USP/CENA; REYNALDO LUIZ VICTORIA, Universidade de São Paulo - USP/CENA; MARIA VICTORIA BALLESTER, Universidade de São Paulo - USP/CENA; PLÍNIO BARBOSA DE CAMARGO, Universidade de São Paulo - USP/CENA; LUIZ ANTONIO MARTINELLI, Universidade de São Paulo - USP/CENA; MARISA DE CÁSSIA PICCOLO, Universidade de São Paulo - USP/CENA. |
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Título: |
Simulação dos efeitos das mudanças do uso da terra na dinâmica de carbono no solo na bacia do rio Piracicaba. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 35, n. 2, p. 389-399, fev. 2000 |
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Idioma: |
Português |
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Notas: |
Título em inglês: Simulation of the effects of land use changes in soil carbon dynamics in the Piracicaba river basin, São Paulo State Brazil. |
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Conteúdo: |
Neste trabalho teve-se como objetivo testar o modelo CENTURY para simular os efeitos das mudancas de uso da terra nos teores de carbono no solo e na producao primaria liquida na bacia do rio Piracicaba, SP. O modelo foi parametrizado e as simulacoes foram realizadas considerando-se areas de florestas, pastagens e cana-de-acucar, dada a sua importancia economica. Os resultados obtidos indicaram que a alteracao do uso/cobertura do solo provoca a diminuicao do estoque de carbono do solo. As simulacoes realizadas na transicao de uma floresta para cana-de-acucar indicaram um decrescimo de 28% no estoque de carbono nos primeiros 12 anos, e diminuicao de 42% com 50 anos de cultivo do solo com essa graminea. Na simulacao da transicao de uma floresta para pasto, seguida do cultivo da cana-de-acucar, verificou-se que na primeira mudanca (floresta-pastagem) a perda de carbono foi de 24%, enquanto na segunda alteracao (pastagem-cana) a perda foi de 22%. Com relacao a producao primaria, os resultados obtidos de floresta (6,6 t ha-lan0-1_, cana-de-acucar (77,82, 80 t ha-1 ano-1) e pasto (6,5 t ha-1 ano-1), mostraram-se similares aos valores observados no campo por outros autores. |
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Palavras-Chave: |
Biogeoquimica; Modelagem; Modelling; Subtropica. |
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Thesaurus NAL: |
biogeochemistry. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/16813/1/pab97_350.pdf
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Marc: |
LEADER 02077naa a2200253 a 4500
001 1101303
005 2019-01-08
008 2000 bl uuuu u00u1 u #d
100 1 $aSILVEIRA, A. M.
245 $aSimulação dos efeitos das mudanças do uso da terra na dinâmica de carbono no solo na bacia do rio Piracicaba.
260 $c2000
500 $aTítulo em inglês: Simulation of the effects of land use changes in soil carbon dynamics in the Piracicaba river basin, São Paulo State Brazil.
520 $aNeste trabalho teve-se como objetivo testar o modelo CENTURY para simular os efeitos das mudancas de uso da terra nos teores de carbono no solo e na producao primaria liquida na bacia do rio Piracicaba, SP. O modelo foi parametrizado e as simulacoes foram realizadas considerando-se areas de florestas, pastagens e cana-de-acucar, dada a sua importancia economica. Os resultados obtidos indicaram que a alteracao do uso/cobertura do solo provoca a diminuicao do estoque de carbono do solo. As simulacoes realizadas na transicao de uma floresta para cana-de-acucar indicaram um decrescimo de 28% no estoque de carbono nos primeiros 12 anos, e diminuicao de 42% com 50 anos de cultivo do solo com essa graminea. Na simulacao da transicao de uma floresta para pasto, seguida do cultivo da cana-de-acucar, verificou-se que na primeira mudanca (floresta-pastagem) a perda de carbono foi de 24%, enquanto na segunda alteracao (pastagem-cana) a perda foi de 22%. Com relacao a producao primaria, os resultados obtidos de floresta (6,6 t ha-lan0-1_, cana-de-acucar (77,82, 80 t ha-1 ano-1) e pasto (6,5 t ha-1 ano-1), mostraram-se similares aos valores observados no campo por outros autores.
650 $abiogeochemistry
653 $aBiogeoquimica
653 $aModelagem
653 $aModelling
653 $aSubtropica
700 1 $aVICTORIA, R. L.
700 1 $aBALLESTER, M. V.
700 1 $aCAMARGO, P. B. de
700 1 $aMARTINELLI, L. A.
700 1 $aPICCOLO, M. de C.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 35, n. 2, p. 389-399, fev. 2000
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