| Registro completo |
| Provedor de dados: |
Planta Daninha
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| País: |
Brazil
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| Título: |
Weed Interference in Semi-Erect and Semi-Prostate Cowpea Cultivars
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| Autores: |
CASTRO,T.S.
ROCHA,P.R.R.
BARRETO,G.F.
MAIA,S.S.
ALBUQUERQUE,J.A.A.
ALVES,J.M.A.
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| Data: |
2019-01-01
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| Ano: |
2019
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| Palavras-chave: |
Vigna unguiculata
Competition
Interference periods
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| Resumo: |
ABSTRACT: This study aimed to determine weed interference periods in semi-erect and semi-prostrate cowpea cultivars. Two simultaneous experiments were conducted with the cowpea cultivars BRS Guariba (semi-erect) and BRS Aracê (semi-prostrate). The experimental design was a randomized block design with four replications in a 7 × 2 factorial scheme, seven periods × two weed management (control and coexistence). Control and coexistence periods consisted of 0, 0-8, 0-16, 0-24, 0-32, 0-45, and 0-60 days after emergence (DAE) for the semi-erect cultivar and 0, 0-8, 0-16, 0-24, 0-32, 0-45, and 0-64 DAE for the semi-prostrate cultivar. Competition throughout the cycle reduced productivity by up to 39.81% for BRS Guariba and 37.27% for BRS Aracê. The cultivars BRS Guariba and BRS Aracê presented critical period of interference prevention of 9 to 41 DAE and 15 to 32 DAE, respectively. The semi-prostrate cultivar BRS Aracê was more competitive with weeds, requiring a shorter control period to express maximum productivity.
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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=S0100-83582019000100277
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| Editor: |
Sociedade Brasileira da Ciência das Plantas Daninhas
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| Relação: |
10.1590/s0100-83582019370100080
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| Formato: |
text/html
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| Fonte: |
Planta Daninha v.37 2019
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| Direitos: |
info:eu-repo/semantics/openAccess
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