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Registros recuperados: 7
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Adaptabilidade e estabilidade de cultivares de trigo em diferentes épocas de semeadura, no Paraná PAB
Silva,Raphael Rossi; Benin,Giovani; Silva,Giovani Olegário da; Marchioro,Volmir Sérgio; Almeida,Juliano Luiz de; Matei,Gilvani.
O objetivo deste trabalho foi identificar as melhores épocas de semeadura e avaliar a adaptabilidade e a estabilidade de cultivares de trigo, em duas regiões tritícolas do Paraná. Avaliou-se a produtividade de grãos de sete cultivares, em Guarapuava, e de nove, em Palotina, em quatro épocas de semeadura, em 2006, 2007 e 2008. Utilizou-se o delineamento experimental de blocos ao acaso, com quatro repetições em Guarapuava, e três em Palotina. Foram utilizadas a metodologia REML/BLUP e a dos efeitos principais dos genótipos e da interação genótipo x ambiente (GGE biplot) para a avaliação da adaptabilidade e da estabilidade das cultivares, e o métodoAMMI para a identificação das melhores épocas de semeadura. Semeaduras em julho, em Guarapuava, e em abril, em...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Triticum aestivum; AMMI; GGE biplot; Interação genótipo x ambiente; REML/BLUP.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011001100004
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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
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Identification of core locations for soybean breeding in Southern Brazil PAB
Matei,Gilvani; Zdziarski,Andrei Daniel; Woyann,Leomar Guilherme; Zanella,Rodrigo; Batti,Vinícius de Bitencourt Bez; Benin,Giovani.
Abstract: The objective of this work was to identify core locations in two soybean macroregions in Brazil for the evaluation and selection of soybean (Glycine max) lineages. Twenty-two cultivars were tested in 23 locations in these two macroregions (MR1 and MR2), during four years, from 2012 to 2015. Trials were conducted in a randomized complete block design with three replicates. All analyses were performed using the GGEbiplot software. The genotype main effects plus genotype × location interaction + genotype main effects plus genotype × environment interaction and genotypic effect vs. genotype x environment effect analyses were used to identify core locations, i.e., locations with high representativeness and consistency of results. Chapada, in the state...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max; GGL + GGE; Soybean macroregion; Test locations.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102809
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Methods of analysis and number of replicates for trials with large numbers of soybean genotypes Ciência Rural
Matei,Gilvani; Benin,Giovani; Storck,Lindolfo; Milioli,Anderson Simionato; Bozi,Antonio Henrique; Dalló,Samuel Cristian; Lucion,Ricardo Antonio.
ABSTRACT: The aim of this study was to evaluate the experimental precision of different methods of statistical analysis for trials with large numbers of soybean genotypes, and their relationship with the number of replicates. Soybean yield data (nine trials; 324 genotypes; 46 cultivars; 278 lines; agricultural harvest of 2014/15) were used. Two of these trials were performed at the same location, side by side, forming a trial with six replicates. Each trial was analyzed by the randomized complete block, triple lattice design, and use of the Papadakis method. The selective accuracy, least significant difference, and Fasoulas differentiation index were estimated, and model assumptions were tested. The resampling method was used to study the influence of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max; Resampling; Experimental precision; Experimental design; Selective accuracy.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000400202
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Morphological and AFLP markers for describing genetic relationships among white-oat genotypes Bragantia
Benin,Giovani; Carvalho,Fernando Irajá Félix de; Oliveira,Antonio Costa de; Marchioro,Volmir Sérgio; Vieira,Eduardo Alano; Bertan,Ivandro; Valério,Igor Pires; Marchese,José Abramo; Matei,Gilvani.
The use of different genetic dissimilarity indicators can help in both the selection of crop improvement strategies and as artificial crosses. The objectives of this work were to estimate the genetic dissimilarity among seven oat genotypes (Avena sativa L.) through molecular (dg) and morphological (dm) markers. Data were obtained from two experiments carried out in Capão do Leão County, RS, Brazil, in 2000. The estimated correlation coefficient (r = 0.33) indicated a low association between dg and dm estimates. The genotypes with similar pedigrees (UPF 16 and UPF 17), with a bootstrapping value of 82.7%, performed the most consistent group (dg) and clustered more closely in both techniques (dg and dm). However, genotypes with similar pedigree clustered in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Choice of parents; Genetic dissimilarity; Genetic variability.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052008000300002
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Reação de genótipos de feijão ao crestamento bacteriano comum, avaliado por dois métodos de inoculação Ciência e Agrotecnologia
Silva,Alciani da; Santos,Idalmir dos; Balbinot,Adriana Lucia; Matei,Gilvani; Oliveira,Paulo Henrique de.
Conhecer a resistência de genótipos de feijão à fitopatógenos é importante para uso em programas de melhoramento genético. Duas técnicas de inoculação bacteriana foram testadas para avaliar a sensibilidade de genótipos de feijão ao crestamento bacteriano comum, causado por Xanthomonas axonopodis pv. phaseoli. Foram inoculados folíolos de 56 genótipos de feijão, utilizando-se das técnicas de agulhas múltiplas e incisão com tesoura, utilizando o isolado XAP 15497. Foi possível classificar 21 genótipos resistentes, 13 moderadamente resistentes, 9 moderadamente suscetíveis e 13 suscetíveis pelo método de inoculação com agulhas múltiplas. No método de inoculação com tesoura, foi possível classificar 24 genótipos como resistentes, 21 como moderadamente...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Resistência; Phaseolus vulgaris; Xanthomonas axonopodis pv. phaseoli.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542009000700054
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Repeatability of associations between analytical methods of adaptability, stability, and productivity in soybean PAB
Woyann,Leomar Guilherme; Milioli,Anderson Simionato; Bozi,Antonio Henrique; Dalló,Samuel Cristian; Matei,Gilvani; Storck,Lindolfo; Benin,Giovani.
Abstract: The objective of this work was to evaluate the association between estimates of adaptability, stability, and productivity in soybean (Glycine max), and to estimate the repeatability coefficient of these associations between years. A total of 22 genotypes were evaluated in 27 environments in the 2012/2013 crop season and in 19 environments in 2013/2014. In the next crop seasons, 28 genotypes were evaluated in 26 environments, in 2014/2015, and in 25 environments in 2015/2016, totalizing 97 trials. Fourteen methods were evaluated; Spearman correlation coefficients were obtained for the parameters of stability, adaptability, and productivity; and the repeatability coefficients, as well as the minimum number of required environments for a coefficient...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max; Cultivar recommendation; Genotype x environment interaction.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000100063
Registros recuperados: 7
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