Epidemiology of cashew anthracnose (Colletotrichum gloeosporioides Penz.) in Mozambique

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dc.contributor.author Uaciquete, A.
dc.contributor.author Korsten, Lise
dc.contributor.author Van der Waals, Jacquie E. (Jacqueline Elise)
dc.date.accessioned 2013-06-27T07:36:39Z
dc.date.available 2013-06-27T07:36:39Z
dc.date.issued 2013-07
dc.description.abstract Anthracnose of cashew (Anacardium occidentale) was studies on various genotypes and locations in Mozambique. Colletotrichum gloeosporioides was identified as the anthracnose causal agent using polymerase chain reaction. The relationships between incidence and severity of anthracnose on cashew genotypes were statistically analyzed by regression. Anthracnose leaf incidence, which is practically easy to evaluate, was consistently associated with leaf severity, and their relationships can be estimated using the restricted exponential function across locations, crop seasons, genotype and fungicide trials. Pooled data enabled estimation of initial incidence of 1.43% with percentage variance accounting for 83.2 and standard error of 8.3. By computing incidence data into the summary equation, 24 changes of 0, 1, 5, 10 and 40%, resulted in changes of severity estimates of 0.01, 0.05, 0.10, 0.50 and 1.00%, respectively. The maximum disease incidence was estimated as 80% when the severity reached only 5%. Increase in severity was observed afterward, approached a maximum of 25% when leaf detachment is observed. The use of incidence data for epidemic comparisons, genotype and fungicide evaluation in cashew orchards is recommended. Anthracnose incidence on leaves however, could not predict incidence on nuts. en_US
dc.description.librarian hb2013 en_US
dc.description.sponsorship The AFD (French Development Agency, Mozambique) funded this research through PRC/PIAC-Project. en_US
dc.description.uri www.elsevier.com/locate/cropro en_US
dc.identifier.citation Uaciquete, A, Korsten, L & Van der Waals, JE 2013, 'Epidemiology of cashew anthracnose (Colletotrichum gloeosporioides Penz.) in Mozambique', Crop Protection, vol 49, no. 7, pp.66-72. en_US
dc.identifier.issn 0261-2194 (print)
dc.identifier.issn 1873-6904 (online)
dc.identifier.other 10.1016/j.cropro.2013.02.016
dc.identifier.uri http://hdl.handle.net/2263/21747
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.rights © 2013 Elsevier Ltd. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Crop Protection.Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Crop Protection, vol. 49, no. 7, 2013, DOI : 10.1016/j.cropro.2013.02.016 en_US
dc.subject Anacardium en_US
dc.subject Nuts en_US
dc.subject Epidemiology en_US
dc.subject Disease assessment en_US
dc.title Epidemiology of cashew anthracnose (Colletotrichum gloeosporioides Penz.) in Mozambique en_US
dc.type Postprint Article en_US


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