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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
01/09/2022 |
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Data da última atualização: |
11/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ROCHA, F. I; MACHADO, A. F. L.; HUERTAS TAVARES, O. C.; CARDOSO, J. C.; UZEDA, M. C. |
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Afiliação: |
FERNANDO IGNE ROCHA, UFRRJ; AROLDO FERREIRA LOPES MACHADO, UFRRJ; ORLANDO CARLOS HUERTAS TAVARES, UFRRJ; JESSICA CHAVES CARDOSO, UNIVERSITY OF ALBERTA, CA; MARIELLA CAMARDELLI UZEDA, CNPAB. |
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Título: |
Growth and nutrient accumulation metrics of Diodia saponariifolia plants as a potential native cover crop in southeastern Brazil. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Weed Biology and Management, 11 july 2022. |
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DOI: |
10.1111/wbm.12255 |
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Idioma: |
Português |
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Conteúdo: |
Competition for resources between crops and weeds hinders the increase of production in agroecosystems. The trait-based plant species selection of cover crops can be a useful tool to suppress competing plants in addition to providing environmental services. Here, we assessed the growth and macronutrient accumulation metrics in Diodia saponariifolia (Rubiaceae) plants, a native cover crop found in family farming systems in southeastern Brazil. Under greenhouse conditions, three viable D. saponariifolia cuttings were planted per tray. The experimental design was entirely randomized, with treatments consisting of plant sampling times, at regular intervals of 7 days between 16 and 93 days after transplanting (DAT) and 15 days between 93 and 138 DAT. Based on dry mass and chemical analysis of leaves, stems, and roots; we fitted the logistic model to explore the metrics of growth and macronutrient accumulation. Overall, the increment in plant dry mass was slow about halfway through the experimental period, being subsequently replaced by a phase of rapid growth. The stem was the plant fraction with the highest relative biomass accumulation. The total macronutrient concentration followed the descending order of K > N > Ca > Mg > P, varying along the plant ontogeny. Considering the nutrient content, the estimated 200 g m(-2) of aboveground dry mass, and 0.3 m(2) of leaf area, it is suggested to perform the first mechanical weeding along the third month of growth. Our results suggest that D. saponariifolia has satisfactory agronomical features for its establishment as a cover crop in different agricultural contexts. MenosCompetition for resources between crops and weeds hinders the increase of production in agroecosystems. The trait-based plant species selection of cover crops can be a useful tool to suppress competing plants in addition to providing environmental services. Here, we assessed the growth and macronutrient accumulation metrics in Diodia saponariifolia (Rubiaceae) plants, a native cover crop found in family farming systems in southeastern Brazil. Under greenhouse conditions, three viable D. saponariifolia cuttings were planted per tray. The experimental design was entirely randomized, with treatments consisting of plant sampling times, at regular intervals of 7 days between 16 and 93 days after transplanting (DAT) and 15 days between 93 and 138 DAT. Based on dry mass and chemical analysis of leaves, stems, and roots; we fitted the logistic model to explore the metrics of growth and macronutrient accumulation. Overall, the increment in plant dry mass was slow about halfway through the experimental period, being subsequently replaced by a phase of rapid growth. The stem was the plant fraction with the highest relative biomass accumulation. The total macronutrient concentration followed the descending order of K > N > Ca > Mg > P, varying along the plant ontogeny. Considering the nutrient content, the estimated 200 g m(-2) of aboveground dry mass, and 0.3 m(2) of leaf area, it is suggested to perform the first mechanical weeding along the third month of growth. Our results suggest ... Mostrar Tudo |
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Palavras-Chave: |
Agrobiodiversity; Diodia saponariifolia; Growth analysis; Nutrient cycling. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02365naa a2200229 a 4500
001 2145979
005 2022-11-11
008 2022 bl uuuu u00u1 u #d
024 7 $a10.1111/wbm.12255$2DOI
100 1 $aROCHA, F. I
245 $aGrowth and nutrient accumulation metrics of Diodia saponariifolia plants as a potential native cover crop in southeastern Brazil.$h[electronic resource]
260 $c2022
520 $aCompetition for resources between crops and weeds hinders the increase of production in agroecosystems. The trait-based plant species selection of cover crops can be a useful tool to suppress competing plants in addition to providing environmental services. Here, we assessed the growth and macronutrient accumulation metrics in Diodia saponariifolia (Rubiaceae) plants, a native cover crop found in family farming systems in southeastern Brazil. Under greenhouse conditions, three viable D. saponariifolia cuttings were planted per tray. The experimental design was entirely randomized, with treatments consisting of plant sampling times, at regular intervals of 7 days between 16 and 93 days after transplanting (DAT) and 15 days between 93 and 138 DAT. Based on dry mass and chemical analysis of leaves, stems, and roots; we fitted the logistic model to explore the metrics of growth and macronutrient accumulation. Overall, the increment in plant dry mass was slow about halfway through the experimental period, being subsequently replaced by a phase of rapid growth. The stem was the plant fraction with the highest relative biomass accumulation. The total macronutrient concentration followed the descending order of K > N > Ca > Mg > P, varying along the plant ontogeny. Considering the nutrient content, the estimated 200 g m(-2) of aboveground dry mass, and 0.3 m(2) of leaf area, it is suggested to perform the first mechanical weeding along the third month of growth. Our results suggest that D. saponariifolia has satisfactory agronomical features for its establishment as a cover crop in different agricultural contexts.
653 $aAgrobiodiversity
653 $aDiodia saponariifolia
653 $aGrowth analysis
653 $aNutrient cycling
700 1 $aMACHADO, A. F. L.
700 1 $aHUERTAS TAVARES, O. C.
700 1 $aCARDOSO, J. C.
700 1 $aUZEDA, M. C.
773 $tWeed Biology and Management, 11 july 2022.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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Biblioteca |
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Origem |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
25/09/2007 |
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Data da última atualização: |
11/08/2022 |
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Tipo da produção científica: |
Nota Técnica/Nota Científica |
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Autoria: |
SILVA, M. V. G. B.; ABREU, U. G. P. de; COBUCI, J. A.; SERENO, J. R. B.; FERREIRA, W. J.; OLIVEIRA, P. R. P. |
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Afiliação: |
MARCOS VINICIUS GUALBERTO B SILVA, CNPGL; URBANO GOMES PINTO DE ABREU, CPAP. |
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Título: |
Estimación de la variabilidad genética a través de la genealogía en el ganado vacuno mantiqueira. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Archivos de Zootecnia, Córdoba, v. 56, n. 214, p. 265-268, 2007. |
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Idioma: |
Espanhol |
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Conteúdo: |
El núcleo de formación del ecotipo Mantiqueira perteneciente al Instituto de Zootecnia, SP, Brasil, fue creado en 1952 con 50 animales originados a partir de cruzamientos ocurridos entre la raza Frisona y el ganado Criollo de la región de la Sierra de Mantiqueira, SP. Estos animales presentan características morfológicas bien definidas, buena producción lechera y adaptabilidad a los sistemas tradicionales de producción. Se analizó el pedigrí de 2070 animales, correspondientes a 1920 vacas, hijas de 150 sementales, con el objetivo de evaluar la variabilidad genética a través de la genealogía y estimar la frecuencia media de endogamia por generación. |
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Palavras-Chave: |
genes fundadores; Número efectivo. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/595797/1/Estimacion-de-la-variabilidad-genetica-atraves-de-la-genealogia-en-el-ganado.pdf
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Marc: |
LEADER 01318naa a2200205 a 4500
001 1595797
005 2022-08-11
008 2007 bl uuuu u00u1 u #d
100 1 $aSILVA, M. V. G. B.
245 $aEstimación de la variabilidad genética a través de la genealogía en el ganado vacuno mantiqueira.$h[electronic resource]
260 $c2007
520 $aEl núcleo de formación del ecotipo Mantiqueira perteneciente al Instituto de Zootecnia, SP, Brasil, fue creado en 1952 con 50 animales originados a partir de cruzamientos ocurridos entre la raza Frisona y el ganado Criollo de la región de la Sierra de Mantiqueira, SP. Estos animales presentan características morfológicas bien definidas, buena producción lechera y adaptabilidad a los sistemas tradicionales de producción. Se analizó el pedigrí de 2070 animales, correspondientes a 1920 vacas, hijas de 150 sementales, con el objetivo de evaluar la variabilidad genética a través de la genealogía y estimar la frecuencia media de endogamia por generación.
653 $agenes fundadores
653 $aNúmero efectivo
700 1 $aABREU, U. G. P. de
700 1 $aCOBUCI, J. A.
700 1 $aSERENO, J. R. B.
700 1 $aFERREIRA, W. J.
700 1 $aOLIVEIRA, P. R. P.
773 $tArchivos de Zootecnia, Córdoba$gv. 56, n. 214, p. 265-268, 2007.
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