African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6574

Full Length Research Paper

Quality of clonal plantlets of Coffea canephora Pierre ex A. Froehner produced using coffee husk in the substrate

Abraao Carlos Verdin Filho
  • Abraao Carlos Verdin Filho
  • Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural (INCAPER), Marilândia, Espírito Santo, Brazil.
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Wagner Nunes Rodrigues
  • Wagner Nunes Rodrigues
  • Centro de Ciências Agrárias e Engenharias, Universidade Federal do Espírito Santo, Alegre, Espirito Santo, Brazil.
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Tafarel Victor Colodetti
  • Tafarel Victor Colodetti
  • Centro de Ciências Agrárias e Engenharias, Universidade Federal do Espírito Santo, Alegre, Espirito Santo, Brazil.
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Aldo Luís Mauri
  • Aldo Luís Mauri
  • Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural (INCAPER), Marilândia, Espírito Santo, Brazil.
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Bruno Fardim Christo
  • Bruno Fardim Christo
  • Centro de Ciências Agrárias e Engenharias, Universidade Federal do Espírito Santo, Alegre, Espirito Santo, Brazil.
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Romario Gava Ferrao
  • Romario Gava Ferrao
  • Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural (INCAPER), Marilândia, Espírito Santo, Brazil.
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Marcelo Antonio Tomaz
  • Marcelo Antonio Tomaz
  • Centro de Ciências Agrárias e Engenharias, Universidade Federal do Espírito Santo, Alegre, Espirito Santo, Brazil.
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Marcone Comerio
  • Marcone Comerio
  • Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural (INCAPER), Marilândia, Espírito Santo, Brazil.
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Saul de Andrade Junior
  • Saul de Andrade Junior
  • Centro de Ciências Agrárias e Engenharias, Universidade Federal do Espírito Santo, Alegre, Espirito Santo, Brazil.
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Sheila Cristina Prucoli Posse
  • Sheila Cristina Prucoli Posse
  • Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural (INCAPER), Marilândia, Espírito Santo, Brazil.
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Lima Deleon Martins
  • Lima Deleon Martins
  • Centro de Ciências Agrárias e Engenharias, Universidade Federal do Espírito Santo, Alegre, Espirito Santo, Brazil.
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Sebastiao Vinícius Batista Brinate
  • Sebastiao Vinícius Batista Brinate
  • Centro de Ciências Agrárias e Engenharias, Universidade Federal do Espírito Santo, Alegre, Espirito Santo, Brazil.
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  •  Received: 02 October 2018
  •  Accepted: 05 November 2018
  •  Published: 13 December 2018

Abstract

Coffee husk is a residue produced during the fruit processing and it is an excellent source of organic matter. It is an interesting alternative that can be used in the formation of the substrate to plantlet production, but the proportion to be recommended is still unknown. In this context, this experiment was conducted with the objective to study the growth, quality and gas exchange rates of clonal plantlets of Conilon coffee produced using plastic tubes, filled with substrate composed of different proportions of coffee husk to partially replace the commercial substrate. The experiment was conducted in a nursery, following a 3×6 factorial scheme in a completely randomized design; studying three genotypes of Conilon coffee and six proportions of coffee husk in the composition of the substrate for plantlets production from 0% to 100%. Overall, the results showed gains in growth and quality of the plantlets when coffee husk was added in the substrate but decrease in gas exchanges, especially over the net carbon assimilation. Considering the growth and quality, most detrimental effects started being observed with proportions above 38%. Different patterns of response were observed among genotypes, which must be taken into consideration for further researches to help define safety levels and a possible recommendation to use coffee husk in the substrate.

Key words: Asexual reproduction, Conilon coffee, plant nursery, biomass, Robusta coffee.