| Registro completo |
| Provedor de dados: |
Bragantia
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| País: |
Brazil
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| Título: |
Morning glory species interference on the development and yield of soybeans
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| Autores: |
Pagnoncelli,Fortunato De Bortoli
Trezzi,Michelangelo Muzell
Brum,Betania
Vidal,Ribas Antonio
Portes,Álvaro Fernando
Scalcon,Everton Luiz
Machado,Adriano
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| Data: |
2017-12-01
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| Ano: |
2017
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| Palavras-chave: |
Interspecific competition
Ipomoea spp.
Glycine max
Biometric variables
Yield components
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| Resumo: |
ABSTRACT Plants from the genus ipomoea are among the most important weeds in Brazil. The objective of this study was to determine the impact of different densities of 2 species of Ipomoea (I. grandifolia and I. purpurea) under different environments (counties of Pato Branco and Renascença, Paraná state, Brazil) on soybean biometric variables, yield components and crop yield loss. Field experiments in 2 distinct places were conducted in a randomized block design, where 1 factor consisted of 8 plant densities (0, 2, 4, 6, 8, 10, 15 and 20 plants∙m−2), whereas the other factor consisted of the 2 Ipomoea species. Joint analysis of the data was performed considering the factors environment, Ipomoea densities and species. The impact of one Ipomoea plant∙m−2 was very high, reaching 26%, on average, of species and environments. The maximum soybean yield loss experienced with the Ipomoea density of 20 plants∙m−2 was close to 80%. The impact of Ipomoea density was more important than the species and environment. This result highlights the importance of correct management of plants of these weed species in soybean crop.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000400470
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| Editor: |
Instituto Agronômico de Campinas
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| Relação: |
10.1590/1678-4499.2016.338
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| Formato: |
text/html
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| Fonte: |
Bragantia v.76 n.4 2017
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| Direitos: |
info:eu-repo/semantics/openAccess
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