Inheritance of angular leaf spot [Phaeoisariopsis griseola (Sacc.) Ferr] resistance in common bean (Phaseolus vulgaris L.) population developed from Kablanketi x Mexico 54

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dc.contributor.authorNchimbi-Msolla, Susan
dc.contributor.authorTryphone, George Muhamba
dc.contributor.authorChilagane, Luseko Amos
dc.contributor.authorKusolwa, Paul Mbogo
dc.date.accessioned2023-07-19T09:50:03Z
dc.date.available2023-07-19T09:50:03Z
dc.date.issued2012-07-20
dc.descriptionJournal articleen_US
dc.description.abstractThe genetic resistance to angular leaf spot (ALS) caused by Phaeoisariopsis griseola in the common bean cultivar Mexico 54 was investigated on disease reactions in parental, F1, F2 and backcross generations derived from crosses between a resistant cultivar Mexico 54 and a susceptible cultivar Kablanketi under screen house conditions. The heritability (h2 ) estimate was as high as 0.719 indicating a successful transfer of ALS resistance among progenies and thus selection can be performed in early generation. High heritability coupled with high expected genetic advance of 39.5% is considered to be more useful in predicting the outcome of selecting the best individuals. Chi-square values were computed to determine whether the observed ratios for disease reactions deviated from expected Mendelian ratios for a single, dominant gene controlling resistance to angular leaf spot in common bean. Based on the resistance of the F2, and the backcross generation to the resistant parent, a 3 resistant: 1 susceptible segregation ratio in the F2 and a 1 resistant: 1 susceptible segregation ratio in the backcross generation to the susceptible parent was obtained implying that resistance to the isolate of Phaeoisariopsis griseola is governed by a single, dominant gene.en_US
dc.description.sponsorshipKirkhouse Trusten_US
dc.identifier.issn1939-1250
dc.identifier.urihttp://www.suaire.sua.ac.tz/handle/123456789/5403
dc.language.isoenen_US
dc.publisherDavid Publishingen_US
dc.relation.ispartofseriesJournal of Agricultural Science and Technology A 2 (2012) 856-862;
dc.subjectPhaeoisariopsis griseolaen_US
dc.subjectHeritabilityen_US
dc.subjectGenetic advanceen_US
dc.subjectInheritanceen_US
dc.subjectCommon beanen_US
dc.titleInheritance of angular leaf spot [Phaeoisariopsis griseola (Sacc.) Ferr] resistance in common bean (Phaseolus vulgaris L.) population developed from Kablanketi x Mexico 54en_US
dc.typeArticleen_US

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