Interactive effects of altitude, microclimate and shading system on coffee leaf rust

Liebig Theresa, Ribeyre Fabienne, Läderach Peter, Poehling Hans-Michael, Van Asten Piet J.A., Avelino Jacques. 2019. Interactive effects of altitude, microclimate and shading system on coffee leaf rust. Journal of Plant Interactions, 14 (1) : pp. 407-415.

Journal article ; Article de recherche ; Article de revue à facteur d'impact
Published version - Anglais
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Quartile : Q1, Sujet : PLANT SCIENCES

Abstract : Shade effects on coffee diseases are ambiguous because they vary depending on the season and environment. Using Coffee Leaf Rust (CLR) as an example, we demonstrate relationships between the environment and shading systems and their effects on disease intensity. We characterized seasonal variations in microclimate and CLR incidence across different altitudes and shading systems, and integrated effects between the environment, shading systems, microclimate and CLR into a piecewise structural equation model. The diurnal temperature range was higher in unshaded systems, but differences decreased with altitude. Humidity related indicators in shaded systems decreased with altitude. At mid and high altitudes, high CLR incidence occurred in the shading system showing a low diurnal temperature range and a high dew point temperature. Our study demonstrates how microclimatic indicators vary as a function of the season, altitude and the coffee shading system, and how this in turn is related to CLR.

Mots-clés Agrovoc : Agroforesterie, Arbre d'ombrage, Coffea, Résistance aux maladies, Résistance aux facteurs nuisibles, Altitude, Microclimat

Mots-clés géographiques Agrovoc : Ouganda

Classification Agris : F08 - Cropping patterns and systems
K10 - Forestry production
H20 - Plant diseases
H50 - Miscellaneous plant disorders

Champ stratégique Cirad : CTS 4 (2019-) - Santé des plantes, des animaux et des écosystèmes

Auteurs et affiliations

  • Liebig Theresa, IITA (UGA) - auteur correspondant
  • Ribeyre Fabienne, CIRAD-BIOS-UPR Bioagresseurs (FRA)
  • Läderach Peter, CIAT (COL)
  • Poehling Hans-Michael, Leiden University (NLD)
  • Van Asten Piet J.A., Olam International (UGA)
  • Avelino Jacques, CIRAD-BIOS-UPR Bioagresseurs (CRI) ORCID: 0000-0003-1983-9431

Source : Cirad-Agritrop (

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