Genetic variability of the components of seed yield in interspecific hybrids of Paspalum
dc.contributor.author | Lopes, Rodrigo Ramos | pt_BR |
dc.contributor.author | Souza, Cleber Henrique Lopes de | pt_BR |
dc.contributor.author | Pereira, Emerson André | pt_BR |
dc.contributor.author | Gasparetto, Bruno Frosi | pt_BR |
dc.contributor.author | Dall'Agnol, Miguel | pt_BR |
dc.contributor.author | Franke, Lucia Brandao | pt_BR |
dc.date.accessioned | 2017-12-05T02:21:45Z | pt_BR |
dc.date.issued | 2017 | pt_BR |
dc.identifier.issn | 1516-3598 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/170793 | pt_BR |
dc.description.abstract | This study aimed to determine the variability and expression of the components of seed yield in twenty-three apomictic Paspalum plicatulum × Paspalum lepton hybrids and two male parent plants (P. lepton). We used a randomized block design with genotypes individually arranged into ten blocks. The variables were: number of total tillers/plant, number of vegetative tillers/plant, number of reproductive tillers/plant, percentage of reproductive tillers, number of racemes/inflorescence, number of seeds/inflorescence, weight of a thousand seeds, and seed yield. We assessed genetic variability using multivariate procedures: generalized Mahalanobis distance, Tocher’s clustering optimization method, and quantification of the relative contribution of the variables. The quantification of variability, based on the components of seed yield of Paspalum plicatulum × Paspalum lepton hybrids, allows the formation of six groups of genotypes using Tocher’s method, with high means for the characteristics studied. Weight of a thousand seeds and number of seeds/inflorescence were the traits that most contributed to the genetic dissimilarity. Genetic crosses involving genotype 10E5052 from group VI and 10E4071 from group V could be undertaken to isolate high yielding segregants, since these genotypes have high seed yielding potential. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Revista brasileira de zootecnia= Brazilian journal of animal science [recurso eletrônico]. Viçosa, MG. Vol. 46, n.4 (abr. 2017), p. 296-302 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Semente | pt_BR |
dc.subject | Apomitic genotypes | en |
dc.subject | Plicatula | en |
dc.subject | Variação genética | pt_BR |
dc.subject | Planta forrageira | pt_BR |
dc.subject | Seed production | en |
dc.subject | Weight of thousand seeds | en |
dc.title | Genetic variability of the components of seed yield in interspecific hybrids of Paspalum | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 001047102 | pt_BR |
dc.type.origin | Nacional | pt_BR |
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