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| Gomes,Andréa BS; Oliveira,Tâmara RA; Cruz,Derivaldo P; Gravina,Geraldo A; Daher,Rogério F; Araújo,Lanusse C; Araújo,Kléberson C. |
| ABSTRACT The aim of this study was to compare four selection indexes and REML/BLUP methodology in the evaluation of predicted genetic gains of traits of interest in snap bean breeding program. We evaluated 17 selected lines, in a randomized complete block design, with four replicates, in four environments, Bom Jesus de Itapaboana-RJ, in 2011 and 2012 and Cambuci-RJ, in 2011 and 2013. The evaluated traits were pod and grain productivity, number of pods per plant, number of seeds per pod and weight of 100 seeds. For gain prediction, the employed selection indexes were Pesek & Baker, Smith & Hazel, Mulamba & Mock, Williams and REML/BLUP methodology. Among the tested selection indexes, Mulamba & Mock was the one which showed the best gain... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phaseolus vulgaris; Simultaneous selection; Mixed models. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000200195 |
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| Nascimento,Maxwel R; Santos,Paulo Ricardo; Coelho,Fábio C; Jaeggi,Mário Euclides PC; Costa,Kleyton Danilo S; Souza,Maurício N. |
| ABSTRACT The aim of this study was to estimate and quantify the degree of association between phytotechnical variables for simultaneous selection of maize genotypes suitable to produce baby corn. Seven genotypes were arranged in field in randomized complete block design with four replicates. Genetic parameters, simple, path and canonical correlations of phytotechnical variables were estimated. The variables production of marketable spikes, length of marketable spikes, final plant stand and plant height showed over 80% heritability and variation index higher than the unity, indicating that superior genotypes can be obtained and selection gains. Significant phenotypic and genotypic correlations were observed for production of marketable spikes, positive and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Path analysis; Canonical correlation; Simultaneous selection. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000300419 |
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| Ferreira, Fábio Medeiros; Universidade Federal do Amazonas - Instituto de Ciências Exatas e Tecnologia em Itacoatiara; Neves, Leonarda Grillo; Universidade Estadual do Mato Grosso - Departamento de Agronomia; Bruckner, Claudio Horst; Universidade Federal de Viçosa - Departamento de Fitotecnia; Viana, Alexandre Pio; Universidade Estadual do Norte Fluminense - Laboratório de Melhoramento Genético Vegetal; Cruz, Cosme Damião; UFV; Barelli, Marco Antonio Aparecido; Unemat. |
| No presente estudo, objetivou-se formar supercaracteres para seleção simultânea de variáveis relacionadas à produção e qualidade dos frutos em famílias de irmãos completos e, ou, meios-irmãos de maracujazeiro amarelo (Passiflora edulis f. flavicarpa). Avaliaram-se 113 famílias e 11 variáveis, no Delineamento I de Comostock e Robinson, em blocos ao acaso com três repetições. A análise de fatores estabeleceu três supercaracteres: tamanho do fruto (TF), produtividade (PROD) e rendimento de indústria (RI). Para grande maioria das variáveis originais, foram verificados sinais de cargas fatoriais que refletem o verdadeiro sentido da seleção em programas de melhoramento de maracujá. Detectou-se variabilidade genética nos níveis hierárquicos de genitor masculino e... |
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Palavras-chave: Agronomia Passiflora edulis f. flavicarpa; Seleção simultânea; Análise multivariada; Melhoramento genético Melhoramento Vegetal Passiflora edulis f. flavicarpa; Simultaneous selection; Multivariate analysis; Genetic breeding. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/3328 |
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| Ribeiro,Larissa Pereira; Carvalho,Luiz Paulo de; Farias,Francisco José Correia; Rodrigues,Josiane Isabela da Silva; Teodoro,Paulo Eduardo; Bhering,Leonardo Lopes. |
| ABSTRACT The objective of this work was to estimate the predicted genetic gains with the simultaneous selection of agronomic and technological traits from elite cotton lines using selection indexes. Data from the evaluation of 36 elite lines were evaluated in three trials located in Apodi-RN in 2013 and 2014 and Santa Helena, GO, Brazil in 2013, in a randomized block design with two replicates. The agronomic traits evaluated were: plant height (PH), average boll weight (ABW), percentage of fibers (PF) and seed cotton yield (YIE). In 20 bolls from each experimental unit, the following technological fiber traits were evaluated: fiber length (UHM), fiber uniformity (UNIF), short fiber index (SFI), fiber strength (FS), elongation (ELON), micronaire (MIC),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gossypium hirssutum; Selection index; Simultaneous selection. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000300466 |
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