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

Performance of arabica coffee cultivars under high temperature conditions

Alexsandro Lara Teixeira1*, Flávio de França Souza2, Antonio Alves Pereira3, Antonio Carlos Baião de Oliveira4 and Rodrigo Barros Rocha1
1Embrapa Rondônia, BR 364 - Km 5,5 - Zona Rural, C.P. 127, CEP: 76815-800. Porto Velho, RO, Brasil. 2Embrapa Semiárido, Petrolina, PE, Brazil. 3Empresa de Pesquisa Agropecuária de Minas Gerais (EPAMIG), Viçosa, MG, Brazil. 4Embrapa Café, Brasília, DF, Brazil.
Email: [email protected]

  •  Accepted: 14 August 2013
  •  Published: 29 August 2013

Abstract

The aim of this study was to evaluate the grain yield of Arabica coffee cultivars grown under high temperatures in regions of low altitude and high mean temperatures in the State of Rondônia, Brazil. Thirty-five Arabica coffee cultivars provided by Empresa de Pesquisa Agropecuária de Minas Gerais (EPAMIG) were evaluated. A randomized block design was used with three replications, spacing of 3.0 x 1.0 m, with four plants per plot. All the crop seasons showed a significant difference for the green coffee yield trait. In joint analysis, a significant difference was detected among the cultivars. In the mean of the four harvests, green coffee yield was 24.60 bags ha-1. The yield of the cultivars CatucaíAmarelo 24/137 and ObatãVermelho IAC 1669-20 stood out, with yields greater than 35 bags ha-1. Four cultivars with better performances were selected with a gain from selection of 40.93% in green coffee yield. In regard to the maturation cycle, 29 cultivars exhibited an early cycle, five medium cycles and one late cycle.

 

Key words: Coffea arabica L., coffee plant breeding, heat tolerance.