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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Effect of shade on arabica coffee berry disease development: Toward an agroforestry system to reduce disease impact
Phytopathology, Volume 98, No. 12, Year 2008
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Description
Coffee berry disease (CBD), caused by Colletotrichum kahawae, is a major constraint for Arabica coffee cultivation in Africa. The disease is specific to green berries and can lead to 60% harvest losses. In Cameroon, mixed cropping systems of coffee with other crops, such as fruit trees, are very widespread agricultural practices. Fruit trees are commonly planted at random on coffee farms, providing a heterogeneous shading pattern for coffee trees growing underneath. Based on a recent study of CBD, it is known that those plants can reduce disease incidence. To assess the specific effect of shade, in situ and in vitro disease development was compared between coffee trees shaded artificially by a net and trees located in full sunlight. In the field, assessments confirmed a reduction in CBD on trees grown under shade compared with those grown in full sunlight. Artificial inoculations in the laboratory showed that shade did not have any effect on the intrinsic susceptibility of coffee berries to CBD. Coffee shading mainly acts on environmental parameters in limiting disease incidence. In addition to reducing yield losses, agroforestry system may also be helpful in reducing chemical control of the disease and in diversifying coffee growers' incomes. © 2008 The American Phytopathological Society.
Authors & Co-Authors
Mouen Bedimo, Joseph Aubert
Cameroon, Douala
Irad
Njiayouom, Ibrahim
Cameroon, Douala
Irad
Bieysse, Daniel
France, Paris
Cirad
Ndoumbè-Nkeng, Michel
Cameroon, Yaounde
Ministry of Scientific Research and Innovation-cameroon
Cilas, Christian
France, Paris
Cirad
Nottéghem, Jean Loup
France, Montpellier
L'institut Agro Montpellier
Statistics
Citations: 63
Authors: 6
Affiliations: 4
Identifiers
Doi:
10.1094/PHYTO-98-12-1320
ISSN:
0031949X
Study Design
Cohort Study
Study Locations
Cameroon