Genetic control of fruit-setting percentage of tomatoes tolerant to high temperatures

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dc.contributor.authorGrilli, G. V G [UNESP]
dc.contributor.authorBraz, L. T. [UNESP]
dc.contributor.authorPerecin, D. [UNESP]
dc.contributor.authorOliveira, J. A. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:20:59Z
dc.date.available2014-05-27T11:20:59Z
dc.date.issued2003-12-01
dc.description.abstractThe aim of present work was to study, through means and variances of generations, the genetic control of fruit-set percentage in tomatoes, in a biparental cross between line Jab-95 (resistant to fruit-set) and 'Caribe' cultivar (susceptible to fruit-set) after being subjected to high temperatures. F1, F2, and backcross generations for both parents (P 1, P2) were produced in a greenhouse at FCAVUNESP, Jaboticabal-SP, Brazil. A randomized complete block experimental design with four replications was used to evaluate the different generations. Estimates of genetic parameters were obtained according to Mather and Jinks (1982). An additive-dominant model was fitted to explain the variation observed. The mean degree of dominance (0.54), indicated incomplete dominance in the direction of increasing fruit-set percentage at high temperatures. The genetic control of fruit-set percentage, at high temperatures, for tomato was found to be oligogenic or polygenic (3.54 genes). The heritability in a limited sense was 83.91%, suggesting that the selection of individuals based on the characteristic evaluated can be efficient.en
dc.description.affiliationDepartamento de Produção Vegetal FCAV-UNESP, Via de acesso Prof. Paulo D. Castellane s/n, 14884-900, Jaboticabal-SP
dc.description.affiliationDepartamento de Ciências Exatas FCAV-UNESP, Via de acesso Prof. Paulo D. Castellane s/n, 14884-900, Jaboticabal-SP
dc.description.affiliationUnespDepartamento de Produção Vegetal FCAV-UNESP, Via de acesso Prof. Paulo D. Castellane s/n, 14884-900, Jaboticabal-SP
dc.description.affiliationUnespDepartamento de Ciências Exatas FCAV-UNESP, Via de acesso Prof. Paulo D. Castellane s/n, 14884-900, Jaboticabal-SP
dc.format.extent179-184
dc.identifierhttp://www.actahort.org/books/607/607_27.htm
dc.identifier.citationActa Horticulturae, v. 607, p. 179-184.
dc.identifier.issn0567-7572
dc.identifier.lattes7087372884726559
dc.identifier.scopus2-s2.0-84879652294
dc.identifier.urihttp://hdl.handle.net/11449/67540
dc.identifier.wosWOS:000184645500027
dc.language.isoeng
dc.relation.ispartofActa Horticulturae
dc.relation.ispartofsjr0,198
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectHeritability
dc.subjectLycopersicon esculentum
dc.subjectMean degree of dominance
dc.subjectNumber of genes
dc.subjectPlant breeding
dc.titleGenetic control of fruit-setting percentage of tomatoes tolerant to high temperaturesen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://www.ishs.org/authors
unesp.author.lattes7087372884726559
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt

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Artigos - Produção Vegetal - FCAV
Artigos - Ciências Exatas - FCAV