Selection of melon genotypes with resistance to Didymella bryoniae using a diallel approach

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dc.creatorLucas da Silva Santos
dc.creatorGuilherme Matos Martins Diniz
dc.creatorRafaelle Fazzi Gomes
dc.creatorEdgard Henrique Costa Silva
dc.creatorAlysson Jalles da Silva
dc.creatorLeila Trevisan Braz
dc.date2019
dc.date.accessioned2026-07-07T03:54:31Z
dc.descriptionThe development of melon lines resistant to gummy stem blight (GSB) is an important strategy for decreasing losses caused by this disease. Thus, selecting the best parents for such a goal is essential. We evaluated the general (GCA) and specific (SCA) combining abilities of lines and accessions to guide the selection of the most promising parents to develop GSB-resistant lines. Six genotypes representing two groups (group I - susceptible: group II - resistant) were crossed in a partial diallel mating design. The genotypes were evaluated for disease expression using a rating scale from 0 (resistant) to 4 (susceptible). Estimates of GCA were negative and significant for the accessions PI 420145 and PI 482398, which can be suggested for crosses aimed at obtaining melon lines resistant to GSB. There is a reciprocal effect for the resistance of melon genotypes to Didymella bryoniae, especially when PI 482398, PI 420145, and PI 140471 are crossed with JAB-20. Such results indicate that maternal effects may be involved in the resistance to gummy stem blight.
dc.formatapplication/pdf
dc.identifier1679-9275
dc.identifierhttps://www.redalyc.org/articulo.oa?id=303060470017
dc.identifierhttps://www.redalyc.org/journal/3030/303060470017/
dc.identifierhttps://www.redalyc.org/journal/3030/303060470017/html/
dc.identifierhttps://www.redalyc.org/journal/3030/303060470017/303060470017.epub
dc.identifierhttps://www.redalyc.org/journal/3030/303060470017/movil
dc.identifier10.4025/actasciagron.v41i1.42600
dc.identifier.urihttp://hdl.handle.net/123456789/446979
dc.languageen
dc.publisherUniversidade Estadual de Maringá
dc.relationhttp://www.redalyc.org/revista.oa?id=3030
dc.rightsActa Scientiarum. Agronomy
dc.sourceActa Scientiarum. Agronomy (Brasil) Vol.41
dc.subjectAgrociencias
dc.titleSelection of melon genotypes with resistance to Didymella bryoniae using a diallel approach
dc.typeartículo científico

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Acta Scientiarum. Agronomy - Universidade Estadual de Maringá