Response of Ugandan common bean varieties to Pseudocercospora griseola and Angular leaf spot disease development in varietal mixtures

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dc.contributor.authorOlango, N
dc.contributor.authorTusiime, G
dc.contributor.authorMulumba, J. W.
dc.contributor.authorNankya, R
dc.contributor.authorFadda, C
dc.contributor.authorJarvis, D. I.
dc.contributor.authorPaparu, P
dc.date.accessioned2021-12-15T21:58:19Z
dc.date.available2021-12-15T21:58:19Z
dc.date.issued2017
dc.description.abstractAngular leaf spot (ALS) is one of the most economically important bean diseases in Africa. One promising control option for the disease is the use of mixtures of resistant and susceptible varieties. This research evaluated (1) the reaction of farmer preferred bean varieties to ALS in the screenhouse and on-station and (2) the effect of different spatial arrangements of resistant and susceptible bean varieties on ALS disease development. For the latter, five mixture combinations and two controls were laid out in a Randomized Complete Block Design having three replicates. Analysis of variance and least significant differences (LSDs) were used to compare disease levels in both studies above. Varietal screening showed significant differences in varietal reaction to ALS. Screenhouse disease scores ranged between 0 and 5, compared to 0.7–3.9 in the field. For the varietal mixture trial, the lowest disease levels and the highest mixture efficiencies were observed for the combination of equal proportions of the susceptible and resistant varieties randomly mixed (even mixture) prior to planting. We conclude that even mixtures reduce the amount of ALS disease that develops in the season.en_US
dc.identifier.citationOlango, N., Tusiime, G., Mulumba, J.W., Nankya, R., Fadda, C., Jarvis, D.I., & Paparu. P. (2017). Response of Ugandan common bean varieties to Pseudocercospora griseola and Angular leaf spot disease development in varietal mixtures. International Journal of Pest Management, 63:2, 119-127, DOI: 10.1080/09670874.2016.1234656en_US
dc.identifier.urihttps://nru.uncst.go.ug/xmlui/handle/123456789/678
dc.language.isoenen_US
dc.publisherTaylor & Francisen_US
dc.subjectPseudocercospora griseolaen_US
dc.subjectAngular leaf spot diseaseen_US
dc.subjectVarietal mixturesen_US
dc.titleResponse of Ugandan common bean varieties to Pseudocercospora griseola and Angular leaf spot disease development in varietal mixturesen_US
dc.typeArticleen_US
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