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Biblioteca(s): |
Embrapa Trigo. |
Data corrente: |
08/02/2021 |
Data da última atualização: |
08/02/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
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. |
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. |
Título: |
Morphophysiological responses of wheat cultivars in competition with diploid and tetraploid ryegrass. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Journal Of Agricultural Studies, v. 8, p . 546-568, 2020. |
Idioma: |
Português |
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 |
Palavras-Chave: |
Competitive interaction. |
Thesagro: |
Lolium Multiflorum; Triticum Aestivum. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/220994/1/vargas-2020-546.pdf
|
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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Embrapa Trigo (CNPT) |
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Registro Completo
Biblioteca(s): |
Embrapa Rondônia. |
Data corrente: |
04/07/1997 |
Data da última atualização: |
04/07/1997 |
Autoria: |
COSTA, N. de L.; PAULINO, V. T.; LEONIDAS, F. das C. |
Afiliação: |
Embrapa-CPAF-Rondonia (C. Postal 406, CEP 78900-000, Porto Velho-RO) e Instituto de Zootecnia. |
Título: |
Rendimento de forragem, nodulacao e composicao quimica de Desmodium ovalifolium CIAT-350 sob diferentes condicoes de adubacao. |
Ano de publicação: |
1995 |
Fonte/Imprenta: |
In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 32., 1995, Brasilia. [Anais...]. Brasilia: SBZ, 1995. p.32-34. |
Páginas: |
p.32-34 |
Idioma: |
Português |
Conteúdo: |
Em casa de vegetacao, avaliou-se a producao de forragem e composicao quimica de Desmodium ovalifolium CIAT-350 sob diferentes condicoes de adubacao: 1 - Testemunha; 2 - 50 kg de P2O2/ha (P); 3 - P + 30 kg de FTE BR-12/ha (micronutrientes); 4 - P + micronutrientes + 300 g de calcario dolomitico/ha; A aplicacao de P + micronutrientes + calcario proporcionou os maiores rendimentos de materia seca, teores e quantidades acumuladas de nitrogenio, alem do maior peso seco de nodulos. A ausencia de fosforo restringiu significativamente o crescimento da leguminosa. Os teores de calcio e magnesio nao foram afetados (P > 0,05) pelas diferentes condicoes de adubacao. |
Palavras-Chave: |
Brasil; Magnerium; Rondonia. |
Thesagro: |
Adubação; Cálcio; Desmódio; Desmodium Ovalifolium; Forragem; Fósforo; Magnésio; Nitrogênio; Nodulação. |
Thesaurus NAL: |
calcium; nitrogen; nodulation; phosphorus. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01649naa a2200349 a 4500 001 1698933 005 1997-07-04 008 1995 bl uuuu u00u1 u #d 100 1 $aCOSTA, N. de L. 245 $aRendimento de forragem, nodulacao e composicao quimica de Desmodium ovalifolium CIAT-350 sob diferentes condicoes de adubacao. 260 $c1995 300 $ap.32-34 520 $aEm casa de vegetacao, avaliou-se a producao de forragem e composicao quimica de Desmodium ovalifolium CIAT-350 sob diferentes condicoes de adubacao: 1 - Testemunha; 2 - 50 kg de P2O2/ha (P); 3 - P + 30 kg de FTE BR-12/ha (micronutrientes); 4 - P + micronutrientes + 300 g de calcario dolomitico/ha; A aplicacao de P + micronutrientes + calcario proporcionou os maiores rendimentos de materia seca, teores e quantidades acumuladas de nitrogenio, alem do maior peso seco de nodulos. A ausencia de fosforo restringiu significativamente o crescimento da leguminosa. Os teores de calcio e magnesio nao foram afetados (P > 0,05) pelas diferentes condicoes de adubacao. 650 $acalcium 650 $anitrogen 650 $anodulation 650 $aphosphorus 650 $aAdubação 650 $aCálcio 650 $aDesmódio 650 $aDesmodium Ovalifolium 650 $aForragem 650 $aFósforo 650 $aMagnésio 650 $aNitrogênio 650 $aNodulação 653 $aBrasil 653 $aMagnerium 653 $aRondonia 700 1 $aPAULINO, V. T. 700 1 $aLEONIDAS, F. das C. 773 $tIn: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 32., 1995, Brasilia. [Anais...]. Brasilia: SBZ, 1995. p.32-34.
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