Half Sib Families
Mostrando 1-12 de 30 artigos, teses e dissertações.
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1. Recurrent selection of popcorn composites UEM-CO1 AND UEM-CO2 based on selection indices
ABSTRACT Selection indices were applied to data sets of 169 half-sib families of the popcorn composites UEM-Co1 and UEM-Co2 in four cycles of recurrent selection. From 2005 to 2008, the experiments were arranged in a 13 by 13 lattice square design, with two replications per cycle and composite. Genetic gains for popping expansion (PE) and grain yield (GY) we
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-09
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2. Successful Identification of Duck Genome Region Determining Desirable Uniformity of Meat Performance Traits
ABSTRACT The objective of this study was to identify genome regions determining duck meat performance traits with possible small variation. In total, 368 crossbred ducks of F2 generation obtained from two parental lines: Pekin-type ducks of Polish origin (A55) and Pekin-type ducks of French origin (GL-30) were recorded. The following seven traits were analyz
Rev. Bras. Cienc. Avic.. Publicado em: 2017-09
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3. Effect of recurrent selection on the variability of the UENF-14 popcorn population
Abstract This study aimed to evaluate the effect of recurrent selection on the genetic variability of UENF-14 population after six selections. Two hundred and ten half-sib families were evaluated in two environments in the state of Rio de Janeiro, using incomplete randomized blocks design with treatments arranged in replication within "Sets". There was signi
Crop Breed. Appl. Biotechnol.. Publicado em: 2016-06
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4. Genetic variability for carotenoid content of grains in a composite maize population
Local maize (Zea mays L.) varieties are cultivated by small-scale farmers in western Santa Catarina (SC) State, in southern Brazil. These small areas frequently present many problems related to biotic and non-biotic stresses, which have limited the economic output and income of the farmers. Production from local varieties for human consumption would be an al
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-12
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5. Selection via simulated individual BLUP based on family genotypic effects in sugarcane.
The objective of this work was to propose a new selection strategy for the initial stages of sugarcane improvement, based on the methodology 'simulated individual BLUP (BLUPIS)', which promotes a dynamic allocation of individuals selected in each full-sib family, using BLUP as a base for both the genotypic effects of the referred families and plot effects. T
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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6. Interacao genotipos x ambientes na avaliacao de progenies de meios-irmaos de milho.
Neste trabalho 400 progenies de meios-irmaos de milho (Zea mays L.) foram avaliadas com o objetivo de avancar um ciclo de selecao (ciclo I) entre e dentro de progenies e estimar a interacao progenies x locais outros parametros geneticos. O estudo foi desenvolvido nos municipios de Ijaci e Sete Lagoas, Minas Gerais, em quatro latices 10 x 10, com duas repetic
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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7. Índices de seleção para famílias de meios-rimãos de Pinus caribaea var. hondurensis.
RESUMO: Pinus caribaea var. hondurensis (Sénécl) Barr. e Golf. é uma espécie tropical que ocorre naturalmente nas terras baixas de Belize, El Salvador, Guatemala, Honduras, Nicarágua e no leste do México. Essa espécie tem sido uma das mais estudadas entre os pinus tropicais e uma das mais importantes comercialmente no centro e no norte do Brasil. O ob
Planaltina. Publicado em: 2011
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8. Genetic mapping in half-sib families by computer simulation. / Mapeamento genético em famílias de meio-irmãos por simulação computacional
This study aimed at investigating the genetic mapping in half- sib families (HSF) through computer simulation to elucidate its limitations and advantages in genomic analysis. The following scenarios of simulation were used: (1) Study the effects of population size in HSF for N = 50, 100, 200, 300, 500 and 1000; (2) Study the effects of saturation degrees (5
Publicado em: 2008
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9. Estimates of genetic parameters and evaluate at the efficiency early selection in baru (Dipteryx alata Vog.). / Estimativas de parÃmetros genÃticos e avaliaÃÃo da eficiÃncia da seleÃÃo precoce em Baru (Dipteryx alata Vog).
The aim of this work was to study the genetic variability to estimate the genetic parameters and to evaluate the early selection efficiency. Sixty six half-sib Dipteryx alata families were obtained from three seed provenances at the Brazilian Savannah in Minas Gerais state. The experiment was set up in November 1996 at V&M Florestal enterprise in BrasilÃndi
Publicado em: 2008
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10. Repeatability and selection of Panicum maximum Jacq. / Repetibilidade e seleção em Panicum maximum Jacq.
The experiment was done with the objective to evaluate the repeatability coefficient of some agronomic characteristics in hybrids of Panicum maximum, and to select superior genotypes in half-sib populations obtained from crosses between sexual plants and apomictic accessions. It was also proposed to compare selection strategies between and within families, c
Publicado em: 2007
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11. HEREDABILIDAD Y VALOR GENÉTICO (REML/BLUP) EN GENOTIPOS DE UN EUCALIPTO TOLERANTE A LA SEQUÍA, EN EL NORTE DE CHILE
ABSTRACT Few species of Eucalyptus are considered useful for forestation in arid zones. Eucalyptus cladocalyx is one of them, and it has been regarded in inter-specific hybrid programs for improvement characteristics like drought tolerance. 49 half-sib families from six populations were evaluated 30 months after the plantations in two localities of Chilean s
Ciênc. Florest.. Publicado em: 2006-06
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12. Avaliação de delineamentos genéticos em programas de melhoramento populacional recorrente, por meio de simulação / Evaluation of genetic delineation in programs of recurrent population improvement, through simulation
Comstock and Robinson (1948) have suggested the evaluation of full-sib lineages obtained by crossing m male with f female distinct groups, in order to esteem the additive components, considering the dominance of the genotypic variance, and also the average degree of dominance. This system of controlled crossings was called Delineation I. The objective of thi
Publicado em: 2006