Genotype x environment effects on severity of cassava bacterial blight disease caused by Xanthomonas axonopodis pv. Manihotis

Nine cassava genotypes were grown for three years at six sites representing three agro-ecological zones in Nigeria to study their reaction to cassava bacterial blight (CBB), investigate genotype x environment (G x E) interaction patterns for their reaction to CBB, and to identify genotypes with stab...

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Bibliographic Details
Published in:European journal of plant pathology 2002-10, Vol.108 (8), p.763-770
Main Authors: DIXON, A. G. O, NGEVE, J. M, NUKENINE, E. N
Format: Article
Language:English
Subjects:
Bacterial plant pathogens
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
Pathology. Damages, economic importance
Phytopathology. Animal pests. Plant and forest protection
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Summary:Nine cassava genotypes were grown for three years at six sites representing three agro-ecological zones in Nigeria to study their reaction to cassava bacterial blight (CBB), investigate genotype x environment (G x E) interaction patterns for their reaction to CBB, and to identify genotypes with stability to the disease, using the additive main effects and multiplicative interaction (AMMI) statistical model. Environments, genotypes and G x E interactions accounted for 71.8%, 12.0% and 16.2% of the treatment sums of squares (SS), and were highly significant (P
ISSN:0929-1873
1573-8469
DOI:10.1023/A:1020876019227