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| Registros recuperados : 26 | |
| 2. |  | LOPES, J. C.; DIAS, M. A. Efeito do estresse salino no vigor e na germinação das sementes e desenvolvimento inicial de plântulas de cenoura. Horticultura Brasileira, Brasília, v. 22, n. 2, jul. 2004. Suplemento 2. CD-ROM. Trabalho apresentado no 44º Congresso Brasileiro de Olericultura, 2004. Publicado também como resumo em: Horticultura Brasileira, Brasília, v. 22, n. 2, p. 357, jul. 2004. Suplemento 1.| Biblioteca(s): Embrapa Hortaliças. |
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| 13. | | DIAS, M. A.; DIAS, D. C. F. S.; ZONTA, J. B.; GOMES JUNIOR, F. G.; CICERO, S. M. Alterações morfológicas e qualidade fisiológica de sementes de mamão. In: CONGRESSO BRASILEIRO DE SEMENTES, 18., 2013, Florianópolis, SC. A semente na produtividade agrícola e na conservação de recursos genéticos. Londrina, PR: Associação Brasileira de Tecnologia de Sementes, 2013. Resumo| Biblioteca(s): Embrapa Cocais. |
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| 15. | | MONDO, V. H. V.; CICERO, S. M.; DOURADO-NETO, D.; PUPIM, T. L.; DIAS, M. A. N. Effect of seed vigor on intraspecific competition and grain yield in maize. Agronomy Journal, Madison, v. 105, n. 1, p. 222-228, 2013.| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 16. | | ROCHA, H. R. da; CABRAL, O. M. R.; DIAS, M. A. F. da S.; BARBOSA, V.; CARVALHO, R. S. Fluxos turbulentos de calor, H2O e CO2, sobre cana-de-açúcar em Sertãozinho, SP. In: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 10., 1997, Piracicaba. Agrometeorologia, monitoramento ambiental e agricultura sustentável: anais. Piracicaba: SBA / 544-| Biblioteca(s): Embrapa Meio Ambiente. |
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| 17. | | CABRAL, O. M. R.; ROCHA, H. R. da; LIGO, M. A. V.; BRUNINI, O.; DIAS, M. A. F. S. Fluxos turbulentos de calor sensível, vapor de água e CO2 sobre plantação de cana-de-açucar (Saccharum sp.) em Sertãozinho-SP. Revista Brasileira de Meteorologia, Rio de Janeiro, v. 18, n. 1, p. 61-70, 2003.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 19. | | ALEXANDRE, R. S.; WAGNER JUNIOR, A.; NEGREIROS, J. R. da S.; BRUCKNER, C. H.; LOPES, J C.; DIAS, M. A. Seed germination and emergency of two Myrciaria species in three substrates. In: CONGRESSO NACIONAL DE BOTÂNICA, 61., 2010, Manaus. Diversidade vegetal brasileira: conhecimento, conservação e uso. Manaus: SBB, 2010. 1 CD-ROM.| Biblioteca(s): Embrapa Acre. |
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| 20. | | DIAS, M. A. N.; MONDO, V. H. V.; CICERO, S. M.; GONÇALVES, N. R.; SILVA, C. A. T. da. Vigor tests association as an alternative for precise and efficient assessment of maize seed quality. Revista Caatinga, Mossoró, v. 28, n. 3, p. 93-99, jul./set. 2015.| Biblioteca(s): Embrapa Arroz e Feijão. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
06/06/2013 |
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Data da última atualização: |
18/10/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
MONDO, V. H. V.; CICERO, S. M.; DOURADO-NETO, D.; PUPIM, T. L.; DIAS, M. A. N. |
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Afiliação: |
VITOR HENRIQUE VAZ MONDO, CNPAF; SILVIO MOURE CICERO, ESALQ; DURVAL DOURADO-NETO, ESALQ; TULIO LOURENÇO PUPIM, ESALQ; MARCOS ALTOMANI NEVES, ESALQ. |
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Título: |
Effect of seed vigor on intraspecific competition and grain yield in maize. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Agronomy Journal, Madison, v. 105, n. 1, p. 222-228, 2013. |
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Idioma: |
Inglês |
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Conteúdo: |
High-vigor seeds result in faster emergence of seedlings and crop establishment than low-vigor seeds. Th ese characteristics could enhance plant competitive ability and could have direct eff ects on maize (Zea mays L.) grain yield. Th is study examined the hypothesis that seed vigor heterogeneity in maize seed lots could increase intraspecifi c competition and negatively aff ect crop grain yield. A 2-yr experiment was executed combining two hybrid maize seed lots, possessing high-vigor and low-vigor seeds, in seven diff erent
distributions in the sowing row. Th e distributions of the plants originating from high- and low-vigor seeds were evaluated at harvest for dry mass accumulation, prolifi cacy, number of grains per row, number of rows per ear, 1000-grain mass, and grain yield. A replacement series design for data analysis of two homogeneous populations and fi ve seed mixture populations was applied. We concluded that, in plant populations originating from heterogeneous seed lots, intraspecifi c competition was intensifi ed, resulting in losses of dry mass accumulation and grain yield. Plants originating from low-vigor seeds had less competitive ability and reduced plant dry mass accumulation and grain yield than those originating from high-vigor seeds and were responsible for crop yield losses. Plants originating from high-vigor seeds had a dominant eff ect on those originating from low-vigor seeds and had no compensatory eff ects. Th e major production component aff ected by intraspecifi c competition was the number of grains per row. MenosHigh-vigor seeds result in faster emergence of seedlings and crop establishment than low-vigor seeds. Th ese characteristics could enhance plant competitive ability and could have direct eff ects on maize (Zea mays L.) grain yield. Th is study examined the hypothesis that seed vigor heterogeneity in maize seed lots could increase intraspecifi c competition and negatively aff ect crop grain yield. A 2-yr experiment was executed combining two hybrid maize seed lots, possessing high-vigor and low-vigor seeds, in seven diff erent
distributions in the sowing row. Th e distributions of the plants originating from high- and low-vigor seeds were evaluated at harvest for dry mass accumulation, prolifi cacy, number of grains per row, number of rows per ear, 1000-grain mass, and grain yield. A replacement series design for data analysis of two homogeneous populations and fi ve seed mixture populations was applied. We concluded that, in plant populations originating from heterogeneous seed lots, intraspecifi c competition was intensifi ed, resulting in losses of dry mass accumulation and grain yield. Plants originating from low-vigor seeds had less competitive ability and reduced plant dry mass accumulation and grain yield than those originating from high-vigor seeds and were responsible for crop yield losses. Plants originating from high-vigor seeds had a dominant eff ect on those originating from low-vigor seeds and had no compensatory eff ects. Th e major production component aff ect... Mostrar Tudo |
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Palavras-Chave: |
Competencia intraespecífica. |
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Thesagro: |
Erva daninha; Milho; Semente; Zea mays. |
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Thesaurus NAL: |
Corn; Intraspecific competition. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02278naa a2200253 a 4500
001 1959487
005 2013-10-18
008 2013 bl uuuu u00u1 u #d
100 1 $aMONDO, V. H. V.
245 $aEffect of seed vigor on intraspecific competition and grain yield in maize.$h[electronic resource]
260 $c2013
520 $aHigh-vigor seeds result in faster emergence of seedlings and crop establishment than low-vigor seeds. Th ese characteristics could enhance plant competitive ability and could have direct eff ects on maize (Zea mays L.) grain yield. Th is study examined the hypothesis that seed vigor heterogeneity in maize seed lots could increase intraspecifi c competition and negatively aff ect crop grain yield. A 2-yr experiment was executed combining two hybrid maize seed lots, possessing high-vigor and low-vigor seeds, in seven diff erent distributions in the sowing row. Th e distributions of the plants originating from high- and low-vigor seeds were evaluated at harvest for dry mass accumulation, prolifi cacy, number of grains per row, number of rows per ear, 1000-grain mass, and grain yield. A replacement series design for data analysis of two homogeneous populations and fi ve seed mixture populations was applied. We concluded that, in plant populations originating from heterogeneous seed lots, intraspecifi c competition was intensifi ed, resulting in losses of dry mass accumulation and grain yield. Plants originating from low-vigor seeds had less competitive ability and reduced plant dry mass accumulation and grain yield than those originating from high-vigor seeds and were responsible for crop yield losses. Plants originating from high-vigor seeds had a dominant eff ect on those originating from low-vigor seeds and had no compensatory eff ects. Th e major production component aff ected by intraspecifi c competition was the number of grains per row.
650 $aCorn
650 $aIntraspecific competition
650 $aErva daninha
650 $aMilho
650 $aSemente
650 $aZea mays
653 $aCompetencia intraespecífica
700 1 $aCICERO, S. M.
700 1 $aDOURADO-NETO, D.
700 1 $aPUPIM, T. L.
700 1 $aDIAS, M. A. N.
773 $tAgronomy Journal, Madison$gv. 105, n. 1, p. 222-228, 2013.
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