African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6577

Full Length Research Paper

Relative competitiveness of Phaseolus vulgaris with Bidens pilosa

Pedro Valerio Dutra Moraes
  • Pedro Valerio Dutra Moraes
  • Department of Agronomy, Federal Technologic University of Paraná, UTFPR, Dois Vizinhos, Paraná, Brazil.
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Andressa Camana
  • Andressa Camana
  • Department of Agronomy, Federal Technologic University of Paraná, UTFPR, Dois Vizinhos, Paraná, Brazil.
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Jhessica Bortolotti
  • Jhessica Bortolotti
  • Department of Agronomy, Federal Technologic University of Paraná, UTFPR, Dois Vizinhos, Paraná, Brazil.
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Maira Cristina Schuster
  • Maira Cristina Schuster
  • Department of Agronomy, Federal Technologic University of Paraná, UTFPR, Dois Vizinhos, Paraná, Brazil.
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Cristiana Bernardi Rankrape
  • Cristiana Bernardi Rankrape
  • Department of Agronomy, Federal Technologic University of Paraná, UTFPR, Dois Vizinhos, Paraná, Brazil.
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Lucas da Silva Domingues
  • Lucas da Silva Domingues
  • Department of Agronomy, Federal Technologic University of Paraná, UTFPR, Dois Vizinhos, Paraná, Brazil.
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Paulo Fernando Adami
  • Paulo Fernando Adami
  • Department of Agronomy, Federal Technologic University of Paraná, UTFPR, Dois Vizinhos, Paraná, Brazil.
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  •  Received: 12 December 2016
  •  Accepted: 19 July 2017
  •  Published: 26 October 2017

Abstract

In agriculture, weeds tend to compete with the crop for scarce resources like water, light and nutrients, which incurs losses to farmers. Consequently, farmers must deal with weeds to derive maximum benefits for their crops and the environment. The aim of this paper was to assess the competitiveness of common bean crops in the presence of hairy beggarsticks (Bidens pilosa) at different population densities. The treatments were arranged in replacement series using five proportions (0:16, 4:12, 8:8, 12:4 and 16:0) of common bean and hairy beggarsticks in a fully randomized design, with four replicates. The analyzed variables were dry mass of the aerial part and height of plants. Competitive analysis was performed using diagrams applied to substitute experiments and indices of competitiveness. With regard to the two evaluated variables, the common bean was more resourceful  than the hairy hairy beggarsticks.

 

Key words: Replacement series, competition, shoot dry mass, stature, Bidens pilosa, beans.