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Registro Completo |
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
09/02/2021 |
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Data da última atualização: |
09/02/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CECHIN, J.; MAZON, A.; RAPHAELLI, S. T. DE O.; AGOSTINETTO, D.; VARGAS, L. |
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Afiliação: |
JOANEI CECHIN, Universidade Federal de Pelotas (UFPel), Pelotas-RS, Brasil.; ALCIMAR MAZON, Universidade Federal de Pelotas (UFPel), Pelotas-RS, Brasil.; SILVIO THIAGO DE OLIVEIRA RAPHAELLI, Universidade Federal de Pelotas (UFPel), Pelotas-RS, Brasil.; DIRCEU AGOSTINETTO, Universidade Federal de Pelotas (UFPel), Pelotas-RS, Brasil.; LEANDRO VARGAS, CNPT. |
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Título: |
Pre-harvest herbicide application reduces the Italian ryegrass seed viability. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Communications in Plant Sciences, v. 10, p. 46-51, 2020. |
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Idioma: |
Inglês |
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Conteúdo: |
Italian ryegrass (Lolium multiflorum Lam.) is a troublesome weed found in temperate agricultural fields, wherein the future infestations depend on the soil seed bank. The aim of this research was to evaluate Italian ryegrass seed viability subjected to herbicide application in different phenological stages of development. Experiments were carried out in a completely randomized experimental design with four repetitions. Paraquat, ammonium-glufosinate, iodosulfuron-methyl and clethodim herbicides were applied in three development stages (pre-spike, anthesis, and grain filling) and compared to the control. The effects were evaluated by percentage of control at seven, 14, and 28 days after application (DAA), seeds per plant, 1000 seeds weight, and percentage of germination, abnormal seedlings, dead seeds, viable and non-viable dormant seeds. Control was greater than 97% at 28 DAA, with a decrease of more 90% for seed per plant, and strong reduction of 1000 seeds weight for the herbicides applied up to the anthesis stage. At the grain filling stage, clethodim reduced seed production by 18% and 1000-seeds weight by 36% compared to the control. Ammonium-glufosinate and paraquat herbicides applied up to the anthesis stage reduced seed viability by more than 98%. Overall, herbicide application reduces seed production, seed weight and viability, especially when applied before the grain filling stage. Highlighted Conclusions 1. Herbicide application up to the anthesis developmental stages reduces seed production, 1000 seeds weight, and seed viability. 2. Paraquat was the best herbicide to reduce seed production per plant, 1000-seeds weight and, viability of Italian ryegrass seeds, regardless of development stages. 3. Reducing future infestations of Italian ryegrass in cropping systems depends on herbicide application before the grain filling. MenosItalian ryegrass (Lolium multiflorum Lam.) is a troublesome weed found in temperate agricultural fields, wherein the future infestations depend on the soil seed bank. The aim of this research was to evaluate Italian ryegrass seed viability subjected to herbicide application in different phenological stages of development. Experiments were carried out in a completely randomized experimental design with four repetitions. Paraquat, ammonium-glufosinate, iodosulfuron-methyl and clethodim herbicides were applied in three development stages (pre-spike, anthesis, and grain filling) and compared to the control. The effects were evaluated by percentage of control at seven, 14, and 28 days after application (DAA), seeds per plant, 1000 seeds weight, and percentage of germination, abnormal seedlings, dead seeds, viable and non-viable dormant seeds. Control was greater than 97% at 28 DAA, with a decrease of more 90% for seed per plant, and strong reduction of 1000 seeds weight for the herbicides applied up to the anthesis stage. At the grain filling stage, clethodim reduced seed production by 18% and 1000-seeds weight by 36% compared to the control. Ammonium-glufosinate and paraquat herbicides applied up to the anthesis stage reduced seed viability by more than 98%. Overall, herbicide application reduces seed production, seed weight and viability, especially when applied before the grain filling stage. Highlighted Conclusions 1. Herbicide application up to the anthesis developmental sta... Mostrar Tudo |
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Palavras-Chave: |
Alternative practices; Burndown; Lolium multiflorum Lam; Non-viable seed; Pre-harvest management. |
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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/221024/1/Cechin-2020-46.pdf
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Marc: |
LEADER 02538naa a2200229 a 4500
001 2129877
005 2021-02-09
008 2020 bl uuuu u00u1 u #d
100 1 $aCECHIN, J.
245 $aPre-harvest herbicide application reduces the Italian ryegrass seed viability.$h[electronic resource]
260 $c2020
520 $aItalian ryegrass (Lolium multiflorum Lam.) is a troublesome weed found in temperate agricultural fields, wherein the future infestations depend on the soil seed bank. The aim of this research was to evaluate Italian ryegrass seed viability subjected to herbicide application in different phenological stages of development. Experiments were carried out in a completely randomized experimental design with four repetitions. Paraquat, ammonium-glufosinate, iodosulfuron-methyl and clethodim herbicides were applied in three development stages (pre-spike, anthesis, and grain filling) and compared to the control. The effects were evaluated by percentage of control at seven, 14, and 28 days after application (DAA), seeds per plant, 1000 seeds weight, and percentage of germination, abnormal seedlings, dead seeds, viable and non-viable dormant seeds. Control was greater than 97% at 28 DAA, with a decrease of more 90% for seed per plant, and strong reduction of 1000 seeds weight for the herbicides applied up to the anthesis stage. At the grain filling stage, clethodim reduced seed production by 18% and 1000-seeds weight by 36% compared to the control. Ammonium-glufosinate and paraquat herbicides applied up to the anthesis stage reduced seed viability by more than 98%. Overall, herbicide application reduces seed production, seed weight and viability, especially when applied before the grain filling stage. Highlighted Conclusions 1. Herbicide application up to the anthesis developmental stages reduces seed production, 1000 seeds weight, and seed viability. 2. Paraquat was the best herbicide to reduce seed production per plant, 1000-seeds weight and, viability of Italian ryegrass seeds, regardless of development stages. 3. Reducing future infestations of Italian ryegrass in cropping systems depends on herbicide application before the grain filling.
653 $aAlternative practices
653 $aBurndown
653 $aLolium multiflorum Lam
653 $aNon-viable seed
653 $aPre-harvest management
700 1 $aMAZON, A.
700 1 $aRAPHAELLI, S. T. DE O.
700 1 $aAGOSTINETTO, D.
700 1 $aVARGAS, L.
773 $tCommunications in Plant Sciences$gv. 10, p. 46-51, 2020.
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Registro original: |
Embrapa Trigo (CNPT) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
18/09/2007 |
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Data da última atualização: |
08/01/2008 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Circulação/Nível: |
Nacional - A |
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Autoria: |
SANTOS, A. F. dos; MAFFA, L. A.; MACHADO, E. B.; MIZUBUTI, E. S. G.; SOZONSKI, J. C. |
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Afiliação: |
Alvaro Figueredo dos Santos, Embrapa Florestas; L. A. Maffa, UFV; E. B. Machado, Swedish Match; E. S. G. Mizubuti, UFV; J. C. Sozonski, Swedish Match. |
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Título: |
Controle químico da ferrugem do álamo utilizando diferentes critérios de dicisão quanto à época de aplicação de fungicidas. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Fitopatologia Brasileira, Brasília, v. 32, supl., p. 307, ago. 2007. |
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Idioma: |
Português |
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Palavras-Chave: |
Álamo. |
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Thesagro: |
Ferrugem; Populus spp. |
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Thesaurus NAL: |
Melampsora medusae. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00649naa a2200205 a 4500
001 1313289
005 2008-01-08
008 2007 bl uuuu u00u1 u #d
100 1 $aSANTOS, A. F. dos
245 $aControle químico da ferrugem do álamo utilizando diferentes critérios de dicisão quanto à época de aplicação de fungicidas.
260 $c2007
650 $aMelampsora medusae
650 $aFerrugem
650 $aPopulus spp
653 $aÁlamo
700 1 $aMAFFA, L. A.
700 1 $aMACHADO, E. B.
700 1 $aMIZUBUTI, E. S. G.
700 1 $aSOZONSKI, J. C.
773 $tFitopatologia Brasileira, Brasília$gv. 32, supl., p. 307, ago. 2007.
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