African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6231

Full Length Research Paper

Growth comparison of 22 genotypes of conilon coffee after regular pruning cycle

Jose Maria Dalcomo
  • Jose Maria Dalcomo
  • Instituto Federal do Espírito Santo, Campus Alegre, ES, Brazil.
  • Google Scholar
Henrique Duarte Vieira
  • Henrique Duarte Vieira
  • Universidade Estadual do Norte Fluminense Darcy Ribeiro, Centro de Ciências e Tecnologias Agropecuárias, Campos dos Goytacazes, RJ, Brazil.
  • Google Scholar
Adesio Ferreira
  • Adesio Ferreira
  • Departamento de Produção Vegetal, Universidade Federal do Espírito Santo, Centro de Ciências Agrárias, Alegre, ES, Brazil.
  • Google Scholar
Fabio Luiz Partelli
  • Fabio Luiz Partelli
  • Departamento de Ciências Agrárias e Biológicas, Universidade Federal do Espírito Santo,Centro Universitário Norte do Espírito Santo, São Mateus, ES, Brazil.
  • Google Scholar


  •  Received: 25 May 2016
  •  Accepted: 26 July 2016
  •  Published: 05 January 2017

Abstract

A regular pruning cycle (RPC) reduces costs when implementing crop treatments and facilitates semi-mechanized harvesting. However, there is information on plant development under this system. Thus, this study aimed to assess the new branch growth of 22 genotypes of Coffea canephora (conilon) after a regular pruning cycle. The assay was conducted at Cachoeiro de Itapemirim, Southern Espírito Santo State, Brazil. Measurements of 12 morphoagronomic traits were performed, and their relationships with temperature and rainfall were studied. The branch vegetative growth rates varied seasonally throughout the assessment period, with higher growth rates and higher temperatures, even not extreme, during rainy periods and lower growth rates and milder temperatures during the dry season. The logistic model with best fit to describe pattern of cumulative growth by genotypes following RPC was sigmoid for all the studied traits.

 

Key words: Coffea canephora, growth curve, seasonality, temperature.