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EVALUATION OF COMMON BACTERIAL BLIGHT RESISTANCE IN A RESISTANT INTER-CROSS POPULATION OF COMMON BEAN

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dc.contributor.advisor Navabi, Alireza
dc.contributor.advisor Pauls, Peter
dc.contributor.author Durham, Kelli M.
dc.date.accessioned 2011-09-14T15:20:37Z
dc.date.available 2011-09-14T15:20:37Z
dc.date.copyright 2011-09
dc.date.created 2011-09-08
dc.date.issued 2011-09-14
dc.identifier.uri http://hdl.handle.net/10214/2991
dc.description.abstract Common bacterial blight CBB, caused by Xanthomonas axonopodis pv. phaseoli, is an important disease of common bean (Phaseolus vulgaris L.). Genetic resistance is the most economically-efficient, environmentally-friendly, and socially-acceptable approach to control plant diseases including CBB. To examine the main and interaction effects of the previously-identified CBB-resistance quantitative trait loci (QTL), a resistant inter-cross population of OAC Rex and HR45 was evaluated under artificial inoculation. While the QTL on chromosome B6 of HR45 accounted for 37 to 46 % of phenotypic variation in the field, the QTL on chromosome B4 of OAC Rex was only significant in more sensitive assays using image analysis under controlled condition using a select number of lines, accounting for 15% of the variation. Broad sense heritability estimates of CBB resistance and the QTL associated with BC420 were high for severity and the area under disease progress curve, promoting the continued use of this marker in selecting CBB resistant genotypes, which in combination with SU91 marker on B8 seem to provide high levels of resistance. en_US
dc.language.iso en en_US
dc.subject CBB en_US
dc.subject Image analysis en_US
dc.subject AUDPC en_US
dc.subject Phaseolus vulgaris en_US
dc.subject Visual screening en_US
dc.subject QTL en_US
dc.subject Resistance en_US
dc.subject Xanthomonas en_US
dc.title EVALUATION OF COMMON BACTERIAL BLIGHT RESISTANCE IN A RESISTANT INTER-CROSS POPULATION OF COMMON BEAN en_US
dc.type Thesis en_US
dc.degree.programme Plant Agriculture en_US
dc.degree.name Master of Science en_US
dc.degree.department Department of Plant Agriculture en_US
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