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dc.contributor.authorFERREIRA, R. A. D. C.
dc.contributor.authorPESSOA, T. V. de S.
dc.contributor.authorSILVA, F. F. e
dc.contributor.authorDIAS, K. O. das G.
dc.contributor.authorCARNEIRO, P. C. S.
dc.contributor.authorCRUZ, C. D.
dc.contributor.authorMACHADO, J. C.
dc.date.accessioned2024-08-05T14:53:53Z-
dc.date.available2024-08-05T14:53:53Z-
dc.date.created2024-08-05
dc.date.issued2024
dc.identifier.citationScientia Agricola, v. 81, e20230045, 2024.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1166222-
dc.descriptionElephant grass is an allogamous perennial forage crop with asexual propagation, allowing plant breeders to explore heterosis and develop hybrids. However, selecting parents for diallel crossing schemes is a major hurdle in the development of hybrids. In addition, this perennial crop has several harvests, which increases the dataset size and the complexity of the statistical analyses. Here, we propose a diallel analysis based on linear mixed models with repeatability information to identify parents and hybrids, and the optimum number of harvests. We performed a complete diallel crossing of 11 parents with data from five harvests for morphological traits and two harvests for nutritive value traits. The diallel model with repeatability information aids in the estimation of the genetic effect of diallel analysis to infer the ideal number of harvests and genotype × harvest interaction. We observed that the specific combining ability (SCA) is more critical for morphoagronomic traits, while the general combining ability (GCA) has greater importance for traits related to nutritive value. Furthermore, we detected that five harvests were sufficient for the morphoagronomic traits with a coefficient of determination (R2 ) of 0.8; however, ten harvests were required for an R2 of 0.9. The model is a promising singleanalysis alternative for plant breeders to analyze a diallel with repeated measures and to estimate important parameters without incurring in additional financial costs.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectGenetic selection
dc.subjectRepeated measures
dc.titleA diallel model with repeatability information applied in an elephant grass breeding program.
dc.typeArtigo de periódico
dc.subject.thesagroForragem
dc.subject.nalthesaurusForage
dc.subject.nalthesaurusSpecific combining ability
dc.subject.nalthesaurusHeterosis
riaa.ainfo.id1166222
riaa.ainfo.lastupdate2024-08-05
dc.identifier.doihttps://doi.org/10.1590/1678-992X-2023-0045
dc.contributor.institutionRICARDO AUGUSTO DINIZ CABRAL FERREIRA, UNIVERSIDADE FEDERAL DE VIÇOSA; TATIANA VILELA DE SOUZA PESSOA, UNIVERSIDADE FEDERAL DE VIÇOSA; FABYANO FONSECA E SILVA, UNIVERSIDADE FEDERAL DE VIÇOSA; KAIO OLIMPIO DAS GRAÇAS DIAS, UNIVERSIDADE FEDERAL DE VIÇOSA; PEDRO CRESCÊNCIO SOUZA CARNEIRO, UNIVERSIDADE FEDERAL DE VIÇOSA; COSME DAMIÃO CRUZ, UNIVERSIDADE FEDERAL DE VIÇOSA; JUAREZ CAMPOLINA MACHADO, CNPGL.
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