Data/hora: 03/06/2024 07:46:27

Provedor de dados: | Ciência e Agrotecnologia
País: | Brazil
Título: | Competitive ability of black common bean genotypes with weeds
Autores: | Vogt,Gilcimar Adriano; Balbinot Junior,Alvadi Antonio; Trezzi,Michelangelo Muzell; Backes,Rogério Luiz; Nicknich,Waldir.
Data: | 2013-10-01
Ano: | 2013
Palavras-chave: | Phaseolus vulgaris; Weed interference; Grain yield.
Resumo: | The morpho-physiologic characteristics of common bean plants can affect their competitive ability with weeds. The objective of this work was to evaluate the competitive ability of black bean genotypes with weeds. An experiment was carried out in the 2010/11 cropping season in Papanduva, SC, southern Brazil, in order to verify the variability of some plant characteristics among genotypes of common bean. The randomized block design was used, with four replications. Seven cultivars underwent the treatments: BRS Campeiro, CHP 01-238, CHP 01-239, Diamante Negro, BRS Supremo, BRS Valente, IPR Uirapuru, FTS Soberano, IPR Graúna, IPR Tiziu e IAC Diplomata. At 6, 14, 18, 25 and 32 days after emergence (DAE) were evaluated plant height, ground cover by common bean plants, dry biomass of stems and leaves, and grain yield. In the 2011/12 cropping season the same cultivars were grown in the presence or absence of weeds, adopting similar methodology to the 2010/11. The losses of grain yield in black common bean genotypes due to weed interference ranged from 30.8% to 54.9%. There was a positive correlation between yield reduction promoted by the weed infestation and dry biomass produced by the weeds. In addition, there was a positive correlation between percentage of yield reduction due to the weed infestation and grain yield without weed interference. The characteristics evaluated did not estimate the competitive ability of black common bean genotypes with weeds.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000500002
Editor: | Editora da Universidade Federal de Lavras
Relação: | 10.1590/S1413-70542013000500002
Formato: | text/html
Fonte: | Ciência e Agrotecnologia  v.37 n.5 2013
Fonte: | info:eu-repo/semantics/openAccess