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	Provedor de dados Infoteca-e (1) Autor CASTRO, C. M. (1) KNEIB, R. B. (1) LENS, E. A. (1) PEREIRA, A. da S. (1) REISSER JUNIOR, C. (1) ROCHA, D. (1) RODRIGUES, A. (1) TERRES, L. (1) Mais... Palavra-chave Batata. (1) Clones. (1) Tipo do documento Comunicado Técnico (INFOTECA-E) (1) Ano 2015 (1) País Brazil (1) Idioma Português (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 32 Primeira ... 1 2 ... Última Genetic gain via REML/BLUP and selection indices in snap bean Horticultura Brasileira 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 Methods for Simultaneous Evaluation of Productivity, Adaptability and Genotypic Stability in Eucalyptus grandis Progeny Trials in the State of Sao Paulo PFB - Pesquisa Florestal Brasileira Pinto Júnior, José Elidney; Sturion, José Alfredo; Resende, Marcos Deon Vilela de; Ronzelli Júnior, Pedro. The estimated Harmonic Mean for Genetic Values (MHVG), Relative Performance of Genetic Values (PRVG) and the Harmonic Mean of Relative Performance of Genetic Values (MHPRVG) were used as measures to provide and facilitate the interpretation of genotypic stability and adaptability of Eucalyptus grandis W. Hill ex Maiden. The different criteria were applied as alternatives to the simulation of selection for productivity, stability, adaptability, as well as for the joint value of these attributes together. The estimates were generated by using the mixed model, assuming genetic effects to be random. The software SELEGEN-REML/BLUP was used to evaluate progeny trials and to estimate statistical parameters. The best trees to be used in seedling and clonal... Tipo: Info:eu-repo/semantics/article Palavras-chave: Quantitative genetics; Mixed models; Eucalypt improvement; Prediction of genetic values; REML/BLUP. Genética quantitativa; Modelos mistos; Melhoramento de eucalipto; Predição de valores genéticos; REML/BLUP.. Ano: 2011 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/204 R-environment package for regression analysis PAB Arnhold,Emmanuel. Abstract: The objective of this work was to develop a package in the R environment for automating and facilitating the regression analysis. Named easyreg, the package offers five functions. The er1 function performs analyses in 13 models, including linear, nonlinear, and mixed models. The er2 function considers the lack of fit in the analyses and in the following designs: completely randomized, randomized complete block, Latin squares, and repeated Latin squares. The regplot function generates graphics; the bl function estimates two-segment models; and the regtest function tests the equality of parameters and the identity of the models. These functions allow of a great number of analyses and confer practicality and versatility to the regression analysis. Tipo: Info:eu-repo/semantics/article Palavras-chave: Data analysis; Equality of parameters; Experimental designs; Lack of fit; Mixed models; Model identity. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000700870 Stability and adaptability of curled green-leaf lettuce lines using the REML/Blup mixed model PAB Candido,Willame dos Santos; Soares,Renato Silva; Franco,Carolina Andrade; Diniz,Guilherme Matos Martins; Silva,Edgard Henrique Costa; Marin,Marcus Vinicius; Braz,Leila Trevisan. Abstract: The objective of this work was to estimate the stability and genotypic adaptability of advanced lines and cultivars of curled green-leaf lettuce (Lactuca sativa), in different growing environments and seasons, using the REML/Blup mixed model. Ten genotypes, seven cropping environments, and two growing seasons were studied in 2015. Plant yield traits were evaluated, and data were subjected to the Selegen-REML/Blup software. Genotype stability and adaptability were analyzed using the harmonic mean of genotypic values (HMGV) and the relative performance of genotypic values (RPGV), respectively. The harmonic mean of RPGV (HMRPGV) was used to simultaneously estimate the stability, adaptability, and yield of breeding lines or cultivars. Considering the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Lactuca sativa; Cropping systems; HMRPGV; Mixed models. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000300298 Adaptability and stability of wheat genotypes according to the phenotypic index of seed vigor PAB Szareski,Vinícius Jardel; Carvalho,Ivan Ricardo; Kehl,Kassiana; Levien,Alexandre Moscarelli; Nardino,Maicon; Dellagostin,Simone Morgan; Demari,Gustavo Henrique; Lautenchleger,Francine; Villela,Francisco Amaral; Pedó,Tiago; Souza,Velci Queiróz de; Aumonde,Tiago Zanatta. Abstract: The objective of this work was to evaluate the adaptability and multi-trait stability of wheat (Triticum aestivum) genotypes according to the phenotypic index of seed vigor (PIV). Thirty wheat genotypes were grown in seven environments in the state of Rio Grande do Sul, Brazil, during one crop season. In each environment, a randomized complete block design with three replicates was used. The PIV was elaborated from the following traits: first germination count, germination percentage, accelerated aging, and electrical conductivity. The evaluated phenotypic index makes it possible to define macroenvironments for the production of wheat seeds with high physiological potential and to understand the implications of the genotype x environment... Tipo: Info:eu-repo/semantics/article Palavras-chave: Triticum aestivum; Accelerated aging; AMMI; Electrical conductivity; Mixed models; Seed quality. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000600727 Genetic parameters of traits at the juvenile stage of different assai palm tree progenies PAB Navegantes,Patricia Cardoso Andrade; Oliveira,Maria do Socorro Padilha de; Nunes,José Airton Rodrigues. Abstract: The objective of this work was to estimate genetic parameters of traits at the juvenile stage of different assai palm (Euterpe oleracea) tree progenies, as well as to select among and within the most promising for fruit production. A total of 34 half-sib and 16 full-sib progenies were evaluated in a completely randomized design with eight replicates and one plant per plot. Nine traits were measured in five harvests, and the data were analyzed using the mixed model approach. The genetic variance was significant for most of the traits. Progeny-mean heritabilities showed moderate magnitudes, ranging from 51% for number of dead leaves to 59% for leaf sheath length. In general, the genetic correlations were positive and had magnitudes varying from... Tipo: Info:eu-repo/semantics/article Palavras-chave: Euterpe oleracea; Full-sib; Genetic correlation; Half-sib; Heritability; Mixed models; Selection gain. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000700815 Agronomic performance of modern soybean cultivars in multi-environment trials PAB Matei,Gilvani; Benin,Giovani; Woyann,Leomar Guilherme; Dalló,Samuel Cristian; Milioli,Anderson Simionato; Zdziarski,Andrei Daniel. Abstract: The objective of this work was to evaluate the productive performance, and the adaptability and stability parameters of modern soybean (Glycine max) cultivars in multi-environment trials, as well as to identify the ideal genotypes for eight growing environments in Brazil. A randomized complete block experimental design was carried out, with three replicates, for the evaluation of 46 soybean cultivars in eight environments, in the microregions of adaptation 102, 201, and 202, in the 2014/2015 crop season. A complex genotype x environment interaction occurred, with changes in the ranking of genotypes among locations. The NA 5909 RG, M6410IPRO, NS 5959 IPRO, NS6823RR, M5917IPRO, NS 6767 RR, and 6563RSF IPRO cultivars showed the highest mean yields.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max; Adaptability and stability; Genotype x environment interaction; GGE biplot; Mixed models. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000700500 Selection indexes in the simultaneous increment of yield components in topcross hybrids of green maize PAB Candido,Willame dos Santos; Silva,Caique Machado e; Costa,Maraiza Lima; Silva,Bruna Elaine de Almeida; Miranda,Beatriz Lima de; Pinto,Jefferson Fernando Naves; Reis,Edésio Fialho dos. Abstract: The objective of this work was to define the most suitable selective strategy for the simultaneous increment of yield components of green maize, by comparing three selection indexes weighted by economic weights and by the REML/BLUP method, in the assessment of predicted genetic gains for traits of interest. An experiment with 75 topcross hybrids from partially inbred S1 lines of green maize was carried out in Jataí, in the state of Goiás, Brazil, using a randomized complete block design, with four replicates. The following yield traits were evaluated: straw ears and commercial ears, grain mass, ear length, ear diameter, and number of ear rows. The selection indexes of Smith and Hazel, Williams, and Mulamba & Mock were applied and weighted for... Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays; Economic weights; Mixed models; REML/BLUP. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2020000102900 Simultaneous selection for yield, stability, and adaptability of carioca and black beans PAB Santos,Paulo Ricardo dos; Costa,Kleyton Danilo da Silva; Nascimento,Maxwel Rodrigues; Lima,Thalyson Vasconcelos; Souza,Yure Pequeno de; Costa,Antonio Félix da; Silva,José Wilson da. Abstract: The objective of this work was to determine the efficiency of a simultaneous selection for yield, stability, and adaptability of bean genotypes of the carioca and black groups. In the 2016 harvest, two experiments were carried out in the state of Pernambuco, Brazil: one for the carioca group, with 20 genotypes, in the municipalities of Caruaru, Arcoverde, and Belém de São Francisco; and the other for the black group, with 12 genotypes, in the municipalities of Caruaru and Arcoverde. The parameters were estimated by mixed models, and selection was performed by the harmonic mean of the relative performance of genetic values, using three strategies: selection based on the predicted genetic value, without interaction; selection based on the predicted... Tipo: Info:eu-repo/semantics/article Palavras-chave: Phaseolus vulgaris; Genotype x environment interaction; Heritability; Mixed models; REML/Blup. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000600736 Selection via simulated individual BLUP based on family genotypic effects in sugarcane PAB Resende,Marcos Deon Vilela de; Barbosa,Márcio Henrique Pereira. 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. The method proposed applies to single full-sib families or those obtained from unbalanced or balanced diallel crosses, half-sib families and self-pollinated families. BLUPIS indicates the number of individuals to be selected within each family, the total number of clones to be advanced, and the number of families to contribute with selected individuals. Correlation between BLUPIS and true BLUP was 0.96,... Tipo: Info:eu-repo/semantics/article Palavras-chave: BLUP/REML; BLUPIS; Selection strategies; Mixed models; Sugarcane breeding. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2006000300008 Prediction of genetic gains with selection between and within S2 progenies of papaya using the REML/Blup analysis PAB Silva,Tamiris Pereira da; Vidal Neto,Francisco das Chagas; Do Vale,Júlio César. Abstract: The objective of this work was to predict the genetic gains with selection of superior individuals within papaya (Carica papaya) progenies using the REML/Blup analysis. Thirty-six S2 progenies, originated from the Calimosa and Tainung 1 hybrids, and two commercial control checks were evaluated in a randomized complete block design, with four replicates. The following traits were evaluated: heights of plants and first fruit; stem diameter at 12 and 18 months; number of days required for fruiting; number, mass, and average mass of commercial fruit; and number and mass of carpelloid and pentandric fruit. The magnitudes of the genetic parameters indicated that the variability present in most of the characters allows greater genetic gain if the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Carica papaya; Agronomic traits; Genetic parameters; Mixed models; Selective accuracy. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001201167 Adaptability and stability of flood-irrigated rice cultivars released to the subtropical region of Brazil PAB Streck,Eduardo Anibele; Magalhães Júnior,Ariano Martins de; Fagundes,Paulo Ricardo Reis; Aguiar,Gabriel Almeida; Facchinello,Paulo Henrique Karling; Oliveira,Antônio Costa de. Abstract: The objective of this work was to estimate the effects of genotype x environment interaction and the genetic potential of flood-irrigated rice cultivars, released between 1972 and 2017, for the state of Rio Grande do Sul, Brazil. The experiments were carried out in the field, in all agroclimatic regions of flood-irrigated rice crop in the state, between the 2005/2006 and 2015/2016 crop years, totaling 60 environments (trials), with 1,961 experimental units. Twenty-five cultivars of irrigated rice were evaluated for the traits grain yield, plant height, days to flowering, and whole grain quality after milling. The values of adaptability and stability were estimated with the aid of mixed models. The rice cultivars BRS Pampa, BRS Pampeira, and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Oryza sativa; Genotype x environment interaction; Mixed models; Plant breeding; Zoning of cultivars. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001001140 Review of Statistical Evaluation of Measurement Errors by Dunn AgEcon Cox, Nicholas J.. This article reviews Statistical Evaluation of Measurement Errors by Dunn. Tipo: Journal Article Palavras-chave: Measurement errors; Linear models; Mixed models; Gllamm; Research Methods/ Statistical Methods. Ano: 2004 URL: http://purl.umn.edu/116280 Estimating variance components in Stata AgEcon Marchenko, Yulia V.. This article gives a brief overview of the popular methods for estimating variance components in linear models and describes several ways to obtain such estimates in Stata for various experimental designs. The article’s emphasis is on using xtmixed to estimate variance components. Prior to Stata 9, loneway could be used to estimate variance components for one-way random-effects models. For other experimental designs, variance components could be computed manually using saved results after anova. The latter approach is viable but requires tedious computations for complicated experimental designs. Instead, as of Stata 9, variance components are easily obtained by using xtmixed. Tipo: Journal Article Palavras-chave: Variance components; Experimental design; ANOVA; REML; ML; Multilevel; Random coefficients; Mixed models; Research Methods/ Statistical Methods. Ano: 2005 URL: http://purl.umn.edu/117553 Water retention and availability in soils of the State of Santa Catarina-Brazil: effect of textural classes, soil classes and lithology Rev. Bras. Ciênc. Solo Costa,André da; Albuquerque,Jackson Adriano; Costa,Adriano da; Pértile,Patricia; Silva,Franciani Rodrigues da. The retention and availability of water in the soil vary according to the soil characteristics and determine plant growth. Thus, the aim of this study was to evaluate water retention and availability in the soils of the State of Santa Catarina, Brazil, according to the textural class, soil class and lithology. The surface and subsurface horizons of 44 profiles were sampled in different regions of the State and different cover crops to determine field capacity, permanent wilting point, available water content, particle size, and organic matter content. Water retention and availability between the horizons were compared in a mixed model, considering the textural classes, the soil classes and lithology as fixed factors and profiles as random factors. It may... Tipo: Info:eu-repo/semantics/article Palavras-chave: Field capacity; Permanent wilting point; Available water capacity; Particle size; Mixed models. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000600010 Stability, adaptability and shelf life of Cantaloupe melon hybrids Rev. Bras. Frutic. Oliveira,Lenilton Alex de Araújo; Cardoso,Eudes de Almeida; Ricarte,Anânkia de Oliveira; Martins,Adriano Ferreira; Costa,José Maria da; Nunes,Glauber Henrique de Sousa. Abstract The adoption of melon hybrids by the productive sector necessitates a prior evaluation of the productivity, quality and shelf life of their fruits. Due to the different environmental conditions under which the hybrids are evaluated, an accentuated genotype-environmental interaction is expected to become apparent and likewise play important role in manifestation of phenotypic traits. The objective of the present work was to evaluate melon hybrids in the state of Rio Grande do Norte. The adaptability and stability of the genetic values were estimated by the HMRPGV method (Harmonic Mean of the Relative Performance of Genetic Values) for the following traits: yield, and soluble solids (SS) content in the period between 2010 to 2015. In 2017, the more... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cucumis melo; BLUP (Restricted Maximum Likelihood / Best Linear Unbiased Prediction); Mixed models; Fruit exportation; Fruit quality. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000500803 Alternatives for analysis of performance data and ranking of Charolais x Nellore crossbred bulls in performance tests R. Bras. Zootec. Toral,Fábio Luiz Buranelo; Alencar,Maurício Mello de. It was evaluated alternatives for analysis of performance records and ranking of Charolais x Zebu crossbred bulls. Data of weight at six ages and average daily weight gain in eight periods of 883 21/32 Charolais + 11/32 Nellore bulls in performance tests were used. The direct additive genetic values were predicted in single trait analysis using animal models with classificatory fixed effects of contemporary groups and age of dam at calving and age of animal at weighing as linear covariable, depending on the trait. As random effects, it was considered the direct additive genetic effect, the permanent maternal environmental and residual effects for all traits. Phenotypic values adjusted for fixed effects included in the model of each trait were also... Tipo: Info:eu-repo/semantics/article Palavras-chave: Crossbred bulls; Least square; Mixed models; Selection. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000700013 Meta-analyses of experimental data in the animal sciences R. Bras. Zootec. St-Pierre,Normand Roger. In certain areas of animal research, such as nutrition, quantitative summarizations of literature data are periodically needed. In such instances, statistical methods dealing with the analysis of summary data (generally from the literature) must be used. These methods are known as meta-analyses. The implementation of a meta-analysis is done in several phases. The first phase defines the study objectives and identifies the criteria for selecting prior publications to be used in the construction of the database. Publications must be scrupulously evaluated for their quality before being entered into the database. During this phase, it is important to carefully encode each record with pertinent descriptive attributes (experiments, treatments, etc.) to serve as... Tipo: Info:eu-repo/semantics/article Palavras-chave: Meta-analysis; Mixed models; Nutrition. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982007001000031 Genetic parameters of agronomic characters in Panicum maximum hybrids R. Bras. Zootec. Braz,Thiago Gomes dos Santos; Fonseca,Dilermando Miranda da; Jank,Liana; Resende,Marcos Deon Vilela de; Martuscello,Janaina Azevedo; Simeão,Rosangela Maria. This study was carried out with the objective of estimating the genetic parameters of agronomic traits in Panicum maximum hybrids. Genotypes obtained from the crosses between the sexual plants S10 and S12 and cultivars Tanzania and Mombasa were evaluated. The design was an incomplete blocks design with two replicates (clones) and 33 blocks. Each block was constituted by three lines or plots with nine plants each, which were evaluated in six harvests. All the characters presented low broad sense heritabilities for both the individual harvest and for the mean of harvests and a large difference between the heritability and the individual repeatability coefficient, which may be due to the high permanent environmental variance, mainly for forage dry matter and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bipolaris maydis; Leaf percentage; Leaf yield; Mixed models; Morpho-agronomic characters; Regrowth. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000400001 Genetic parameters and alternatives for evaluation and ranking of Nellore young bulls in pasture performance tests R. Bras. Zootec. Fragomeni,Breno de Oliveira; Scalez,Daiane Cristina Becker; Toral,Fábio Luiz Buranelo; Bergmann,José Aurélio Garcia; Pereira,Idalmo Garcia; Costa,Paula Souza Teixeira da. The objective of this study was to estimate (co)variance components for weight at 550 days, average daily gain and an index with both traits, and to compare alternatives for evaluation and ranking of Nellore young bulls in pasture performance tests. The heritability estimates were 0.73, 0.31 and 0.44 for weight at 550 days, average daily gain and index, respectively. Animals were ranked according to their predicted breeding values or the phenotypic deviations in relation to the mean of the test. Although the correlations between breeding values and phenotypic deviations were high, there were differences in the number of animals selected in common when the selection criteria were the predicted breeding values or the phenotypic deviations. Mixed models are... Tipo: Info:eu-repo/semantics/article Palavras-chave: Breeding value; Heritability; Least square; Mixed models; Selection. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000800004 Registros recuperados: 32 Primeira ... 1 2 ... Última

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