Heritability and sources of Ascochyta blight resistance in common bean

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cg.identifier.doihttps://doi.org/10.1094/pd-77-0711en
cg.isijournalISI Journalen
cg.issn0191-2917en
cg.issue7en
cg.journalPlant Diseaseen
cg.reviewStatusPeer Reviewen
cg.subject.ciatBEANSen
cg.subject.ciatGENETIC RESOURCESen
cg.subject.ciatPESTS AND DISEASESen
cg.volume77en
dc.contributor.authorHanson, PMen
dc.contributor.authorPastor Corrales, Marcial A.en
dc.contributor.authorKornegay, Julia L.en
dc.date.accessioned2014-09-24T08:42:16Zen
dc.date.available2014-09-24T08:42:16Zen
dc.identifier.urihttps://hdl.handle.net/10568/43532
dc.titleHeritability and sources of Ascochyta blight resistance in common beanen
dcterms.abstractCommon bean germ plasm (Phaseolus vulgaris) with intermediate Ascochyta blight (caused by Phoma exigua var. diversispora) resistance has been identified at CIAT. The heritability and inheritance of resistance to this pathogen were studied in three resistant climbing bean sources. Narrow-sense heritability estimates determined by the regression of the F2-derived F4 line means on F2-derived F3 line means from crosses Carioca (S) × G 10817 (R) and G 10088 (S) × G 10747 (R) were low to moderate (0.19–0.64), depending on the cross and character measured. A generation means analysis of resistant parents G 10817 and G 10823 crossed with the susceptible parent G 12488 indicated that additive, dominance, and epistatic effects were important in the inheritance of resistance. Evaluation of lines for resistance should be conducted in advanced generations in replicated trials.en
dcterms.accessRightsOpen Access
dcterms.issued1993
dcterms.languageen
dcterms.publisherScientific Societiesen
dcterms.subjectphaseolus vulgarisen
dcterms.subjectascochytaen
dcterms.subjectphomaen
dcterms.subjectdisease resistanceen
dcterms.subjectheritabilityen
dcterms.subjectresistencia a la enfermedaden
dcterms.subjectheredabilidaden
dcterms.typeJournal Article

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