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Registro Completo |
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
08/02/2021 |
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Data da última atualização: |
08/02/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BALDESSARINI, R.; GALON, L; VARGAS, L.; MÜLLER, C.; BRANDLER, D.; SILVA, J. D. G. DA; FORTE, C. T.; FRANCESCHETTI, M. B.; TIRONI, S. P.; PERIN, GISMAEL FRANCISCO. |
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Afiliação: |
RENATA BALDESSARINI, Laboratory of Sustainable Management of Agricultural Systems, Federal University of Fronteira Sul, Erechim Campus; LEANDRO GALON, Laboratory of Sustainable Management of Agricultural Systems, Federal University of Fronteira Sul, Erechim Campus; LEANDRO VARGAS, CNPT; CAROLINE MÜLLER, Laborato ry of Sustainable Management of Agricultural Systems, Federal University of Fronteira Sul, Erechim Campus; DAIANE BRANDLER, Laborato ry of Sustainable Management of Agricultural Systems, Federal University of Fronteira Sul, Erechim Campus; JESSICA DIAS GOMES DA SILVA, Laboratory of Sustainable Management of Agricultural Systems, Fe deral University of Fronteira Sul, Erechim Campus; CÉSAR TIAGO FORTE, Department of Agronomy, Federal University of Santa Maria Av Roraima, n 1000, 97.105 900, Sa nta Maria, RS, Brazil; MILENA BARRETTA FRANCESCHETTI, Laboratory of Sustainable Management of Agricultural Systems, Federal University of Fronteira Sul, Erechim Campus; SIUMAR PEDRO TIRONI, Laboratory of Seeds and Grains, Federal University of Fronteira Sul, Chapecó Campus SC 484 km 02, 89.815 899, Chapecó, SC, Brazil.; GISMAEL FRANCISCO PERIN, Labor atory of Sustainable Management of Agricultural Systems, Federal University of Fronteira Sul, Erechim Campus. |
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Título: |
Morphophysiological responses of wheat cultivars in competition with diploid and tetraploid ryegrass. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Journal Of Agricultural Studies, v. 8, p . 546-568, 2020. |
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Idioma: |
Português |
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Conteúdo: |
Wheat crop growth and development can be affected by weed infestation, especially ryegrass. Thus, the objective of this study was to evaluate the competitive ability of wheat cultivars wit h the diploid and tetraploid ryegrass biotypes. Greenhouse experiments were conducted in a completely randomized design with four replications. BRS Parrudo and TBIO Sinuelo wheat cultivars and the competitors ryegrass diploid and tetraploid were used. The population of each species was defined and then the replacement series experiments were carried out, containing the following proportions of wheat and ryegrass plants: 100:0, 75:25, 50:50, 25:75; and 0:100%, equivalent to 32:0; 24:8; 16:16; 8:24; and 0:32 plants per pot. Fifty days after species emergence, physiological traits, such as photosynthetic activity ( A ), stomatal conductance ( g S ), transpiration rate E ), internal concentration of mesophyll CO 2 (C i ), water use efficiency (WUE), and carboxylation ef ficiency (CE), were evaluated, along with the morphological traits of leaf area (LA), stem diameter (SD), number of tillers (NT), and shoot dry mass (DM). Competitiveness analysis was performed by means of diagrams applied to substitutive experiments using relative competitiveness indices. The ryegrass, both diploid and tetraploid, had a negative effect on the variables related to A , WUE and also those associated with plant growth. The ryegrass negatively changed the LA, DM, SD, and NT of the cultivars BRS Parrudo and TBIO Sinuelo, which demonstrates competition between the cultivars of wheat and the weed ryegrass with mutual damage to the species involved in th recommended for wheat cultivation. MenosWheat crop growth and development can be affected by weed infestation, especially ryegrass. Thus, the objective of this study was to evaluate the competitive ability of wheat cultivars wit h the diploid and tetraploid ryegrass biotypes. Greenhouse experiments were conducted in a completely randomized design with four replications. BRS Parrudo and TBIO Sinuelo wheat cultivars and the competitors ryegrass diploid and tetraploid were used. The population of each species was defined and then the replacement series experiments were carried out, containing the following proportions of wheat and ryegrass plants: 100:0, 75:25, 50:50, 25:75; and 0:100%, equivalent to 32:0; 24:8; 16:16; 8:24; and 0:32 plants per pot. Fifty days after species emergence, physiological traits, such as photosynthetic activity ( A ), stomatal conductance ( g S ), transpiration rate E ), internal concentration of mesophyll CO 2 (C i ), water use efficiency (WUE), and carboxylation ef ficiency (CE), were evaluated, along with the morphological traits of leaf area (LA), stem diameter (SD), number of tillers (NT), and shoot dry mass (DM). Competitiveness analysis was performed by means of diagrams applied to substitutive experiments using relative competitiveness indices. The ryegrass, both diploid and tetraploid, had a negative effect on the variables related to A , WUE and also those associated with plant growth. The ryegrass negatively changed the LA, DM, SD, and NT of the cultivars BRS Parrudo and TBIO Sin... Mostrar Tudo |
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Palavras-Chave: |
Competitive interaction. |
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Thesagro: |
Lolium Multiflorum; Triticum Aestivum. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/220994/1/vargas-2020-546.pdf
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Marc: |
LEADER 02470naa a2200265 a 4500
001 2129848
005 2021-02-08
008 2020 bl uuuu u00u1 u #d
100 1 $aBALDESSARINI, R.
245 $aMorphophysiological responses of wheat cultivars in competition with diploid and tetraploid ryegrass.$h[electronic resource]
260 $c2020
520 $aWheat crop growth and development can be affected by weed infestation, especially ryegrass. Thus, the objective of this study was to evaluate the competitive ability of wheat cultivars wit h the diploid and tetraploid ryegrass biotypes. Greenhouse experiments were conducted in a completely randomized design with four replications. BRS Parrudo and TBIO Sinuelo wheat cultivars and the competitors ryegrass diploid and tetraploid were used. The population of each species was defined and then the replacement series experiments were carried out, containing the following proportions of wheat and ryegrass plants: 100:0, 75:25, 50:50, 25:75; and 0:100%, equivalent to 32:0; 24:8; 16:16; 8:24; and 0:32 plants per pot. Fifty days after species emergence, physiological traits, such as photosynthetic activity ( A ), stomatal conductance ( g S ), transpiration rate E ), internal concentration of mesophyll CO 2 (C i ), water use efficiency (WUE), and carboxylation ef ficiency (CE), were evaluated, along with the morphological traits of leaf area (LA), stem diameter (SD), number of tillers (NT), and shoot dry mass (DM). Competitiveness analysis was performed by means of diagrams applied to substitutive experiments using relative competitiveness indices. The ryegrass, both diploid and tetraploid, had a negative effect on the variables related to A , WUE and also those associated with plant growth. The ryegrass negatively changed the LA, DM, SD, and NT of the cultivars BRS Parrudo and TBIO Sinuelo, which demonstrates competition between the cultivars of wheat and the weed ryegrass with mutual damage to the species involved in th recommended for wheat cultivation.
650 $aLolium Multiflorum
650 $aTriticum Aestivum
653 $aCompetitive interaction
700 1 $aGALON, L
700 1 $aVARGAS, L.
700 1 $aMÜLLER, C.
700 1 $aBRANDLER, D.
700 1 $aSILVA, J. D. G. DA
700 1 $aFORTE, C. T.
700 1 $aFRANCESCHETTI, M. B.
700 1 $aTIRONI, S. P.
700 1 $aPERIN, GISMAEL FRANCISCO
773 $tJournal Of Agricultural Studies$gv. 8, p . 546-568, 2020.
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Registro original: |
Embrapa Trigo (CNPT) |
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Biblioteca(s): |
Embrapa Territorial. |
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Data corrente: |
16/10/2012 |
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Data da última atualização: |
18/01/2013 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
LIMA, E. de P.; SEDIYAMA, G. C.; DELGADO, R. C.; ANDRADE, R. G.; GONCALVES, A. O. |
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Afiliação: |
EVALDO DE PAIVA LIMA, CNPS; GILBERTO C. SEDIYAMA, UFV; RAFAEL C. DELGADO, UFRRJ; RICARDO GUIMARAES ANDRADE, CNPM; ALEXANDRE ORTEGA GONCALVES, CNPS. |
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Título: |
Evapotranspiração real diária utilizando produtos do sensor MODIS/Terra na bacia do Rio Paracatu. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE METEOROLOGIA, 27., 2012, Gramado. Anais... Gramado: SBMET, 2012. |
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Páginas: |
5 p. |
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Idioma: |
Português |
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Conteúdo: |
Estudos relacionados à demanda hídrica em uma escala regional de forma a identificar variabilidades espaciais e temporais são fundamentais no diagnóstico e gerenciamento de bacias hidrográficas. O objetivo deste estudo foi estimar a evapotranspiração real diária nas sub-bacias do ribeirão Entre Ribeiros e rio Preto, que ficam entre os Estados de Goiás e Minas Gerais, por meio de ferramentas de sensoriamento remoto. O algoritmo SEBAL (Surface Energy Balance Algorithm for Land) foi utilizado com produtos do sensor MODIS e dados meteorológicos do dia 23 de setembro de 2007. Os resultados obtidos se mostraram consistentes na comparação com informações da literatura indicando que, a metodologia pode ser utilizada em estudos complementares relacionados à gestão de bacias hidrográficas. |
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Palavras-Chave: |
Bacias hidrográficas; SEBAL. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/68124/1/Ricardo.pdf
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Marc: |
LEADER 01411nam a2200193 a 4500
001 1936890
005 2013-01-18
008 2012 bl uuuu u00u1 u #d
100 1 $aLIMA, E. de P.
245 $aEvapotranspiração real diária utilizando produtos do sensor MODIS/Terra na bacia do Rio Paracatu.
260 $aIn: CONGRESSO BRASILEIRO DE METEOROLOGIA, 27., 2012, Gramado. Anais... Gramado: SBMET$c2012
300 $a5 p.
520 $aEstudos relacionados à demanda hídrica em uma escala regional de forma a identificar variabilidades espaciais e temporais são fundamentais no diagnóstico e gerenciamento de bacias hidrográficas. O objetivo deste estudo foi estimar a evapotranspiração real diária nas sub-bacias do ribeirão Entre Ribeiros e rio Preto, que ficam entre os Estados de Goiás e Minas Gerais, por meio de ferramentas de sensoriamento remoto. O algoritmo SEBAL (Surface Energy Balance Algorithm for Land) foi utilizado com produtos do sensor MODIS e dados meteorológicos do dia 23 de setembro de 2007. Os resultados obtidos se mostraram consistentes na comparação com informações da literatura indicando que, a metodologia pode ser utilizada em estudos complementares relacionados à gestão de bacias hidrográficas.
653 $aBacias hidrográficas
653 $aSEBAL
700 1 $aSEDIYAMA, G. C.
700 1 $aDELGADO, R. C.
700 1 $aANDRADE, R. G.
700 1 $aGONCALVES, A. O.
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Embrapa Territorial (CNPM) |
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