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	Provedor de dados Scientia Agricola (2) Thai Agricultural (1) Bragantia (1) Autor Barrios,Sanzio Carvalho Lima (1) Bermudez,Felipe Pereira (1) Dhawan, N.L. (1) Dovale,Julio César (1) El-Demerdash, R.M. (1) Fritsche-Neto,Roberto (1) Granato,Ítalo Stefanine Correia (1) Lima Neto,Francisco Pinheiro (1) Miranda,Glauco Vieira (1) Moro,Gustavo Vitti (1) Reis,Gabriel Gonçalves dos (1) Shehata, A.H. (1) Souza Jr.,Cláudio Lopes de (1) Souza Júnior,Cláudio Lopes de (1) Mais... Palavra-chave Maize improvement (4) Abiotic stress (1) Combining ability (1) Corn (1) Diallel design (1) Dominance gene (1) Genetic correlations (1) Heritability coefficients (1) Maize (1) NUE (1) Plant breeding (1) Varieties (1) การปรับปรุงพันธุ์ (1) ข้าวโพด (1) ยีนเด่น (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2014 (1) 2010 (1) 2009 (1) 1972 (1) País Brazil (3) Thailand (1) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Performance of maize single-crosses developed from populations improved by a modified reciprocal recurrent selection Scientia Agricola Souza Jr.,Cláudio Lopes de; Barrios,Sanzio Carvalho Lima; Moro,Gustavo Vitti. Maize (Zea mays L.) elite inbred lines developed from pedigree programs tend to be genetically related. Therefore, it is necessary to incorporate unrelated inbreds to those programs to allow the continued release of outstanding single-crosses. The objectives of this research were to compare the usefulness of a modified reciprocal recurrent selection procedure (MRRS) to improve populations to be used as sources of elite inbreds and outstanding single-crosses to integrate pedigree programs, and to investigate the effects of selection on the relative contribution of general (GCA) and specific combining (SCA) abilities to the single-crosses variation. Eight and six S3 lines from populations IG-3-C1 and IG-4-C1, respectively, selected from the first cycle of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Diallel design; Maize improvement; Combining ability. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000200011 Number of recombinations and genetic properties of a maize population undergoing recurrent selection Scientia Agricola Lima Neto,Francisco Pinheiro; Souza Júnior,Cláudio Lopes de. In maize recurrent selection programs, selected genotypes were recombined once to generate genetic variability for the next selection cycle. Selection generates negative gametic phase disequilibrium which reduces genetic variances, and this disequilibrium is not significantly reduced with only one generation of recombination. The objective of this research was to assess the effects of one additional generation of recombination on phenotypic and genotypic parameters in a maize population undergoing recurrent selection. Selected progenies of the EPB-4 population were subjected to one and two generations of recombination, and from each generation half- and full-sib progenies were developed and evaluated at three environments for grain yield, plant and ear... Tipo: Info:eu-repo/semantics/article Palavras-chave: Maize improvement; Heritability coefficients; Genetic correlations. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000100007 Level of dominance in an adapted maize variety in relation to its future improvement Thai Agricultural Shehata, A.H.; Dhawan, N.L.; El-Demerdash, R.M.. 3 tables Palavras-chave: Corn; Maize; Dominance gene; Varieties; Maize improvement; Plant breeding; ข้าวโพด; ยีนเด่น; การปรับปรุงพันธุ์. Ano: 1972 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3899 Index selection of tropical maize genotypes for nitrogen use efficiency Bragantia Granato,Ítalo Stefanine Correia; Bermudez,Felipe Pereira; Reis,Gabriel Gonçalves dos; Dovale,Julio César; Miranda,Glauco Vieira; Fritsche-Neto,Roberto. Nitrogen (N) limitation in maize crops is related to the fact that the efficiency of nitrogen fertilization in maize does not exceed 50%, primarily due to volatilization, denitrification and soil leaching. Therefore, the development of new nitrogen use efficient (NUE) cultivars is necessary. The aim of the present study was to develop indices for the accurate selection of NUE maize genotypes for use in conditions of both high and low N availability. The experiment was conducted in a greenhouse (20º45'14"S; 42º52'53"W) at the Federal University of Viçosa during October 2010. A total of 39 experimental hybrid combinations and 14 maize lines differing in NUE were evaluated under two N availability conditions. We determined the relative importance of the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Abiotic stress; NUE; Maize improvement. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052014000200009 Registros recuperados: 4 Primeira ... 1 ... Última

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