Consulta: subjectFacets:"Genotype × environment interaction"
Registros recuperados: 11
Data/hora: 01/06/2024 14:02:24

Genetic variability during four cycles of recurrent selection in rice
Provedor de dados: 86
Autores: Morais Júnior,Odilon Peixoto de; Melo,Patrícia Guimarães Santos; Morais,Orlando Peixoto de; Colombari Filho,José Manoel.
Abstract: The objective of this work was to estimate genetic and phenotypic parameters among progenies of the CNA6 population of upland rice (Oryza sativa) for grain yield and plant height in four cycles of recurrent selection, in order to evaluate the genetic variability and the genotype × location interaction. The experimental data were obtained from yield trials of S0:2 progenies, which were carried out in the experimental design of Federer’s augmented blocks, without replications for progenies within each location. The effect of S0:2 progenies was significant in all cycles for grain yield and in the first three cycles for plant height, indicating the maintenance of the population’s genetic potential to generate transgressive progenies. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oryza sativa; Genotype × environment interaction; Population improvement; Quantitative genetics; Variance components.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001101033

Sufficient number of experiments for the adaptability and stability analyses of maize using the Eberhart and Russell method
Provedor de dados: 86
Autores: Cargnelutti Filho,Alberto; Guadagnin,José Paulo.
Abstract: The objective of this work was to determine the sufficient number of experiments (environments) for the adaptability and stability analyses of maize cultivars, using the Eberhart and Russell method. Grain yield data from 63 trials of maize cultivars from six groups of experiments were used. In each group, new data files were formed from all experiments (n), for the combinations of 3, 4, ..., n-1 experiments, totaling 10,381 files. Mean and estimates of the adaptability (b) and stability (S2d) parameters were obtained for each cultivar, in each file. A power function was adjusted for the amplitudes of b and S2d (dependent variables) in each cultivar, as a function of the number of experiments (independent variable), totaling 290 equations (145...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; Genotype × environment interaction; Indication of cultivars.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000600673

Stability and adaptability for wood volume in the selection of Eucalyptus saligna in three environments
Provedor de dados: 86
Autores: Oliveira,Thiago Wendling Gonçalves de; Paula,Rinaldo Cesar de; Moraes,Mario Luiz Teixeira de; Alvares,Clayton Alcarde; Miranda,Aline Cristina; Silva,Paulo Henrique Muller da.
Abstract: The objective of this work was to evaluate the genotype x environment (GxE) interaction in open-pollinated Eucalyptus saligna progenies for simultaneous selection for greater stability and adaptability for wood volume, as well as to compare the selection strategies through combined and individual analyses in three environments. Three experiments were conducted in a randomized complete block design, with four replicates and six plants per plot, with 102 to 122 progenies. Three years after planting, survival rate and wood volume were evaluated. The genetic parameters were estimated by the maximum restricted likelihood and best linear unbiased prediction (REML/Blup) methods, and the stability and adaptability analysis was conducted using the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Forest breeding; Genetic selection; Genotype × environment interaction; REML/Blup.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000500611

Genotype × country interaction for weaning weight in the Angus populations of Brazil and Uruguay
Provedor de dados: 96
Autores: Espasandin,Ana Carolina; Urioste,Jorge Ignacio; Campos,Leonardo Talavera; Alencar,Maurício Mello de.
It was analyzed the existence of genotype × environment interaction for weaning weight in populations of Angus from Brazil and Uruguay by using records of 73,205 animals (10,257 from Uruguay and 62,948 from Brazil) belonging to 33 and 161 farms and 13 and 34 regions in Uruguay and Brazil, respectively. It was used the one- and two-trait animal model analyses considering weight at weaning of each country as different characters. Coefficients of direct and maternal additive-genetic correlation estimated by two statistical models (including or not bull × country effect) Models included the fixed effects of contemporary group (herd-year and month of birth), sex of the calf, the covariates age of dam at calving (years) and age of calf at weaning (days), and the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Beef cattle; Genetic correlation; Genotype × environment interaction; International evaluation.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000300014

Yield adaptability and stability of semi-prostrate cowpea genotypes in the Northeast region of Brazil by REML/BLUP
Provedor de dados: 124
Autores: Rocha,Maurisrael de Moura; Damasceno-Silva,Kaesel Jackson; Menezes-Júnior,José Ângelo Nogueira de; Carvalho,Hélio Wilson Lemos de; Costa,Antônio Félix da; Lima,João Maria Pinheiro de; Santos,João Felinto dos; Bertini,Cândida Hermínia Campos de Magalhães; Passos,Adriana Rodrigues; Morais,Otoniel Magalhães.
ABSTRACT Cowpea is grown in different environmental conditions of the Northeast region of Brazil. Thus, selecting and developing cultivars with high yield, stability, and adaptability for this region is necessary due to the genotype × environment interaction. The objective of this work was to select cowpea lines of semi-prostrate plant simultaneously for high yield, adaptability, and genotypic stability in the Northeast region of Brazil by the REML/BLUP procedure. Twenty semi-prostrate genotypes-16 lines and four cultivars-were evaluated in 36 environments of the Northeast region from 2013-2015. The experiments were carried out under rainfed conditions in a completely randomized block design with four replications. The adaptability and genotypic stability...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vigna unguiculata; Grain yield; Genotype × environment interaction; Mixed models.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500879

Adaptability and stability of the zinc density in cowpea genotypes through GGE-Biplot method
Provedor de dados: 124
Autores: Oliveira,Diêgo Sávio Vasconcelos de; Franco,Luis José Duarte; Menezes-Júnior,José Ângelo Nogueira de; Damasceno-Silva,Kaesel Jackson; Rocha,Maurisrael de Moura; Neves,Adão Cabral das; Sousa,Francisco Mauro de.
ABSTRACT Biofortification is a strategy that aims to improve the nutritional quality of foods through genetic breeding. Zinc is an important mineral for human health. It is used in various physiological processes such as immune function, antioxidant protection, growth and development. Therefore, zinc is one of the most studied minerals in the biofortification of grains in cowpea. The objective of this study was to evaluate the adaptability and stability of zinc density in the grain of 12 cowpea genotypes in four environments in the states of Piauí (PI) and Maranhão (MA), Brazil, by using the GGE-Biplot method. A randomized complete block design with four replications was used. Grain samples of each genotype were ground and the resulting flour was subjected...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vigna unguiculata; Micronutrient; Biofortification; Genotype × environment interaction.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500783

Yield adaptability and stability of semi-erect cowpea genotypes in the Northeast region of Brazil by REML/BLUP
Provedor de dados: 124
Autores: Rocha,Maurisrael de Moura; Damasceno-Silva,Kaesel Jackson; Menezes-Júnior,José Ângelo Nogueira de; Carvalho,Hélio Wilson Lemos de; Costa,Antônio Félix da; Lima,João Maria Pinheiro de; Santos,João Felinto dos; Bertini,Cândida Hermínia Campos de Magalhães; Passos,Adriana Rodrigues; Morais,Otoniel Magalhães.
ABSTRACT Cowpea is grown in the various soil and climatic conditions of the Northeast region of Brazil. Thus, selecting and developing cultivars with high yield, stability, and adaptability for this region is necessary due to the genotype × environment interaction. The objective of this work was to select cowpea lines of semi-erect plant simultaneously for high yield, adaptability, and genotypic stability in the Northeast region of Brazil by the REML/BLUP procedure. Twenty semi-erect genotypes-15 lines and five cultivars-were evaluated in 37 environments of the Northeast region from 2013-2015. The experiments were carried out under rainfed conditions in a randomized complete block design with four replications. The adaptability and genotypic stability were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vigna unguiculata; Grain yield; Genotype × environment interaction; Mixed models.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500862

Half a century of studying adaptability and stability in maize and soybean in Brazil
Provedor de dados: 63
Autores: Rezende,Wender Santos; Cruz,Cosme Damião; Borém,Aluízio; Rosado,Renato Domiciano Silva.
ABSTRACT: The study of adaptability and stability underlies the cultivar recommendation process for all crops. There is a considerable number of statistical methods available for this purpose, but little is known about their actual adoption by the Brazilian scientific community. The objective of this study was to carry out a systematic review of the scientific literature on the adaptability and stability methods used in maize and soybean in Brazil from scientific articles published between 1970 and 2017 in Brazilian journals. Article searches were carried out in journals indexed through the SciELO database. The articles were classified according to the year of publication and the adaptability and stability methods used. We also evaluated the pattern of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays L.; Glycine max (L.) Merril; Genotype × environment interaction; Adaptation; Cultivar recommendation.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000300501

Forage production stability of elephant grass (Pennisetum purpureum) Genotypes in campos dos Goytacazes, RJ, Brazil
Provedor de dados: 115
Autores: Schneider,Larissa S. A.; Daher,Rogério F.; Gravina,Geraldo A.; Machado,Juarez C.; Menezes,Bruna R. S.; Sousa,Liliane B.; Silva,Verônica B.; Rodrigues,Erina V.
Abstract The elephant grass (Pennisetum purpureum) is a tropical perennial forage plant with high biomass production that adapts to various soil and climatic conditions in Brazil. Stability is defined as the consistency in performance of genotypes in different environments. The aim of the present study was to estimate stability parameters by the Eberhart and Russel method, and to select elephant grass genotypes with forage production stability and high-yield in Campos dos Goytacazes, RJ, Brazil. Five harvests were made for evaluation in two years. The experimental design was arranged as randomized blocks design, with 80 treatments and two replicates. After the individual analysis of variance for dry matter yield, a combined split-plot analysis was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Genotype × environment interaction; Pennisetum purpureum; Dry matter yield; High-yield genotypes.
Ano: 2016
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952016000600693

Phenotypic stability of hybrids of Gália melon in Rio Grande do Norte state, Brazil
Provedor de dados: 42
Autores: Nunes,Glauber H.S.; Santos Júnior,Haroldo; Grangeiro,Leilson C.; Bezerra Neto,Francisco; Dias,Carlos T.S.; Dantas,Mara S.M.
The objectives of this study were to determine the importance of simple and complex components of the interaction genotype × environment and to evaluate the adaptability and stability of Gália melon hybrids. Nine hybrids were tested in twelve environments of Rio Grande Norte State from 2000 to 2001. The experiments were carried out in a randomized complete block design with three replications. The statistical methods of Toler and Burrows, Wricke and AMMI (Additive Main effect and Multiplicative Interaction) were used to study the adaptability and stability. The complex component is responsible for most of the genotype × environment interaction for the yield and content of solids soluble of fruits. The environments associated with Mossoró and Assu...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cucumis melo; Genotype × environment interaction; AMMI analysis; Non-linear grouping protocol; Hybrids.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000400029

Productivity, adaptability and stability of high-oleic peanut lines in the State of São Paulo
Provedor de dados: 53
Autores: Santos,João Francisco dos; Godoy,Ignácio José de; Moraes,Andrea Rocha Almeida de; Michelotto,Marcos Doniseti; Freitas,Rogério Soares de; Bolonhezi,Denizart; Cavichioli,José Carlos; Martins,Antônio Lúcio Mello.
ABSTRACT Estimating stability and adaptability parameters of cultivars is a widely used study to access the genotype × environment interaction, in order to identify the best genotypes for each cultivation area. In this study, the adaptability and stability parameters were estimated in eight high-oleic lines and two peanut cultivars in 11 experiments in the State of São Paulo, Brazil, from 2008 to 2013, based on the data of the plots mean productivity (Kg·ha–1), with the objective of recommending the most productive genotypes in peanut producing regions in the State of São Paulo. The design used for these experiments was the randomized complete blocks, with four replications. Lines L. 599 and L. 551 were the best genotypes regarding overall adaptability and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arachis hypogaea L.; Yield; Genotype × environment interaction.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000200265