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Agronomic performance of popcorn genotypes in Northern and Northwestern Rio de Janeiro State - doi: 10.4025/actasciagron.v35i1.15694 Agronomy
Silva, Thiago Rodrigues da Conceição; Universidade Estadual do Norte Fluminense “Darcy Ribeiro”; Amaral Júnior, Antonio Teixeira do; Universidade Estadual do Norte Fluminense “Darcy Ribeiro”; Gonçalves, Leandro Simões Azeredo; Universidade Estadual do Norte Fluminense “Darcy Ribeiro”; Candido, Liliam Silvia; Universidade Estadual do Norte Fluminense “Darcy Ribeiro”; Vittorazzi, Cassio; Universidade Estadual do Norte Fluminense “Darcy Ribeiro”; Scapim, Carlos Alberto; Universidade Estadual de Maringá.
Three populations of popcorn from the Universidade Estadual do Norte Fluminense Darcy Ribeiro recurrent selection program (cycles C3, C4 and C5 from UNB2U), five simple hybrids provided by the Universidade Estadual de Maringá breeding program, five varieties (BRS Angela, UFVM-2 Barão de Viçosa, Viçosa, Beija-Flor and SAM) and three commercial hybrids (Zelia, Jade and IAC 112) were evaluated in five environments for their potential to be registered by the MAPA and recommended to producers in Northern and Northwestern Rio de Janeiro State. The experiment was arranged in a randomized block design, with three replications. The two main economic traits of the crops, grain yield (GY) and popping expansion (PE), were assessed. In the joint analysis of variance,...
Palavras-chave: Zea mays L.; Adaptability; Value for cultivation and use; Grain yield; Popping expansion Zea mays L.; Adaptability; Value for cultivation and use; Grain yield; Popping expansion.
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/15694
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Análise combinatória de populações de milho pipoca em topcrosses. Repositório Alice
SEIFERT, A.L.; CARPENTIERI-PÍPOLO, V.; FERREIRA, J.M.; GERAGE, A.C..
O objetivo deste estudo foi avaliar, por meio de topcrosses, o potencial heterótico de 14 populações de milho pipoca. No ano agrícola 1997/1998, foram obtidos os híbridos topcrosses resultantes dos cruzamentos das populações com o testador, que se constituiu da mistura eqüitativa de sementes de todas as 14 populações. No ano agrícola 1999/2000, as populações e os híbridos foram avaliados em dois experimentos, em delineamento de blocos ao acaso, com três repetições. Foram estimados os parâmetros genéticos, e realizadas as análises de variância dos topcrosses e das populações. Com base nos resultados da capacidade geral de combinação das populações avaliadas nos topcrosses, para os caracteres produtividade e capacidade de expansão, foram selecionadas, para...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Zea mays everta; Capacidade de expansão; Heterose; Capacidade geral de combinação; Popping expansion; Heterosis; General combining ability.
Ano: 2006 URL: http://www.alice.cnptia.embrapa.br/handle/doc/118961
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Características agronômicas e qualidade comercial de cultivares de milho pipoca em alta população - DOI: 10.4025/actasciagron.v31i2.452 Agronomy
Leonello, Luiz Augusto Fumagalli; UNESP; Cazetta, Disnei Amélio; UNESP; Fornasieri Filho, Domingos; UNESP.
Com o objetivo de identificar cultivares de milho pipoca que se constituam em alternativa viável aos produtores foi conduzido um experimento em delineamento experimental de blocos casualizados, com cinco genótipos de milho pipoca (BRS Ângela, Zélia, IAC 112, IAC 12 e IAC TC-01) e quatro repetições, na safra 2003/2004. O experimento foi instalado em espaçamento entre as linhas de 60 cm, com densidade populacional de 75 mil plantas por hectare. No decorrer do experimento, foram avaliadas características agronômicas e comerciais em condição de campo e de laboratório. A variedade BRS Ângela apresentou maior produtividade, seguida pelos híbridos simples IAC, com Zélia (híbrido triplo) apresentando menor produtividade. O híbrido simples IAC 12 apresentou pior...
Palavras-chave: 5.01.00.00-9 Agronomia Zea mays L.; Capacidade de expansão; Componentes produtivos Zea mays L.; Popping expansion; Yield components.
Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/452
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Comparison of testers in the selection of S3 families obtained from the UENF-14 variety of popcorn Bragantia
Pena,Guilherme Ferreira; Amaral Júnior,Antonio Teixeira do; Gonçalves,Leandro Simões Azeredo; Vivas,Marcelo; Ribeiro,Rodrigo Moreira; Mafra,Gabrielle Sousa; Santos,Adriano dos; Scapim,Carlos Alberto.
ABSTRACT The use of topcross has proven to be an interesting option for the maize crop; however, for the popcorn, there is little information about the choice of the appropriate tester. In this context, this study aimed to analyze four testers including two open pollinated varieties(BRS Angela and UENF-14), one topcross hybrid (IAC125) and a line (P2), to evaluate the combining ability of 50 S3 families of popcorn, obtained from the UENF-14 variety. Popcorn families were evaluated for grain yield (GY) and popping expansion (PE). The estimates of general and specific combining abilities were obtained and the discrimination of each tester through differentiation index was carried out. The testers BRS Angela (for GY) and IAC 125 (for PE) were the most...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays var. everta; Topcross; Yield; Popping expansion.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000200135
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Comparison of three tester parents in evaluating popcorn families derived from IAC-125 Rev. Ciênc. Agron.
Miotto,Acácio Antonio; Pinto,Ronald José Barth; Scapim,Carlos Alberto; Matias Junior,José Lidércio; Coan,Marlon Mathias Dacal; Silva,Hingrid Ariane da.
ABSTRACT Thirty-eight S3 families obtained by selfing from IAC-125 popcorn hybrid were evaluated by three different topcross tester parents: an inbred line P3.3- S7 generation taken from popcorn population CMS-42, an open-pollinated variety BRS Angela and the commercial three-way hybrid Jade. Manual crossings were performed according to a partial diallel mating design. Topcross hybrids were evaluated in individual experiments for each tester carried out in randomized block designs with three replications in two locations (Maringá-Paraná and Sabáudia-Paraná). The results for grain yield and popping expansion were gathered in a combined analysis. Estimates of general and specific combining ability were obtained according to Griffing's methodology (1956),...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Topcross; Popping expansion; General combining ability.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000300564
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Desempenho agronômico de novos híbridos de milho-pipoca no Noroeste do Estado do Paraná - DOI: 10.4025/actasciagron.v31i1.4142 Agronomy
Vieira, Rafael Augusto; UEM; Rodovalho, Marcos de Araújo; UEM; Scapim, Carlos Alberto; UEM; Tessmann, Dauri José; UEM; Amaral Júnior, Antônio Teixeira do; UENF; Bignotto, Lucas Souto; UEM.
In maize, variations on agronomic performance in distinct environments are common and more evident for one-way hybrids. The objective of this work was to evaluate the performance of new one-way popcorn hybrids developed by the Breeding Program of the State University of Maringá, in northwestern Paraná. The characteristics evaluated were: grain yield, popping expansion, plant height, ear height and the intensity of Southern rust (Puccinia polysora), Northern leaf blight (Exserohilum turcicum), and phaeosphaeria leaf spot (Phaeosphaeria maydis/Pantoea ananas). The assay was carried out into randomized block design with three replications in Maringá, state of Paraná, Brazil, during the 2006/2007 cropping season. The treatments were 27 simple popcorn hybrids...
Palavras-chave: 5.01.03.05-9 Melhoramento Vegetal Zea mays L.; Rendimento de grãos; Capacidade de expansão; Doenças foliares Zea mays L.; Grain yield; Popping expansion; Leaf diseases.
Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4142
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Eficiências relativas de métodos de seleção de famílias endogâmicas em milho-pipoca - DOI: 10.4025/actasciagron.v31i2.578 Agronomy
Arnhold, Emmanuel; UFMA; Viana, José Marcelo Soriano; UFV; Silva, Ricardo Gonçalves; UFMA; Mora, Freddy; Universidad de Concepción, Concepción.
Objetivou-se avaliar a eficiência relativa da seleção massal, entre e dentro e de um novo índice de seleção combinada proposto. O índice, baseado na genealogia, foi obtido por: , em que é o valor fenotípico da planta Sn – 1; é o valor fenotípico da família Sn descendente da planta Sn – 1; b1 é o peso do valor fenotípico individual; e b2 é o peso do valor fenotípico de família Sn. Os pesos foram obtidos por derivação, pressupondo que os mesmos minimizam a variância da diferença entre o índice e o valor genético aditivo da planta Sn – 1. Para comparar os métodos, utilizaram-se famílias e plantas endogâmicas, obtidas da população Viçosa. Fez-se seleção em capacidade de expansão, utilizando os três métodos nas gerações S1, S2, S3 e S4, e avaliou-se a...
Palavras-chave: 5.01.00.00-9 Agronomia seleção combinada; Zea mays; Capacidade de expansão combined selection; Zea mays; Popping expansion.
Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/578
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Estimativas de parametros geneticos nas populacoes CMS-42 e CMS-43 de milho pipoca. Repositório Alice
PACHECO, C.A.P.; GAMA, E.E.G. e; GUIMARAES, P.E. de O.; SANTOS, M.X. dos.; FERREIRA, A. da S..
Com os objetivos de elevar a frequencia de alelos favoraveis e estimar os parametros geneticos e fenotipos de algumas caracteristicas agronomicas, as populacoes de milho pipoca CMS-42 e CMS-43 form submetidas ao 2. ciclo de selecao entre e dentro de progenies de meios irmaos. Avaliaram-se 196 progenies de cada populacao, em latice simples 14 x 14, tendo como testemunha os respectivos ciclos anteriores. O espacamento utilizado foi de 1,0 x 0,20, para parcelas de 5,0 m com 25 plantas. Embora se tenha dado maior importancia a capacidade de expansao (CE), as medias das progenies selecionadas evidenciaram a possibilidade de obtencao de materiais superiores tambem quanto a produtividade. A CMS-43, de maneira geral, apresentou maior variabilidade que a CMS-42,...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Zea mays; Capacidade de expansao; Melhoramento intrapopulacional; Herdabilidade; Ganho genetico; Popping expansion; Intrapopulational breeding; Heritability; Genetic gain.
Ano: 1998 URL: http://www.alice.cnptia.embrapa.br/handle/doc/90127
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Evaluation of Top-Cross Popcorn Hybrids Using Mixed Linear Model Methodology Chilean J. Agric. Res.
Arnhold,Emmanuel; Mora,Freddy; G. Silva,Ricardo; I.V. Good-God,Pedro; Rodovalho,Marcos A.
The market for popcorn (Zea mays L.) has been continuously growing in Brazil fact has required the development of cultivars adapted to local environmental conditions. For this reason, the analytical objectives of this study were to evaluate top-cross popcorn hybrids in relation to popping expansion and grain yield in three different eco-geographic regions of Brazil, in order to estimate variance components using Restricted Maximum Likelihood (REML) and predict breeding values using Best Linear Unbiased Prediction (BLUP). Genetic evaluation considered a linear model with heterogeneous residual (environmental) variances. The Restricted Likelihood Ratio Test (RLRT) evidenced significant differences (p < 0.01) for the genotypic effect. Grain yield showed a...
Tipo: Journal article Palavras-chave: Popping expansion; REML; BLUP; Improvement.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000100006
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Genetic gain prediction of the third recurrent selection cycle in a popcorn population - DOI: 10.4025/actasciagron.v30i5.3174 Agronomy
Santos, Fabrício Santana; UENF; Amaral Júnior, Antonio Teixeira do; UENF; Freitas Júnior, Silvério de Paiva; UENF; Rangel, Ramon Macedo; UENF; Scapim, Carlos Alberto; UEM; Mora, Freddy; UEM.
Although Brazil has reduced its importation of popcorn grain in recent years, the availability of improved varieties is still rare. In order to improve a popcorn population and to estimate the prediction of genetic gains, the third cycle of intrapopulation recurrent selection was carried out. One hundred ninety two half-sib families were obtained from the second cycle of the UNB-2U population and tested in a randomized complete block design with two replications within sets in two locations. The presence of statistical significance for sets for grain yield, poorly husked ear and broken plants proved the efficiency and the necessity for the use of the hierarchical statistical model by sets. Except for the poorly husked ear, there was significance for...
Tipo: Método Palavras-chave: 5.02.01.03-4 Genética e Melhoramento Florestal Zea mays; Produção de grãos; Melhoramento; Capacidade de expansão Melhoramento Vegetal Zea mays; Popcorn breeding; Genetic gains; Yield; Popping expansion.
Ano: 2008 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/3174
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Genetic progress in popcorn recurrent selection by a multivariate mixed-model approach Ciência e Agrotecnologia
Ematné,Hugo Junqueira; Nunes,José Airton Rodrigues; Souza,João Cândido de; Muñoz,Patrício Ricardo.
ABSTRACT Recurrent selection is a viable alternative for popcorn breeding. However, frequent verification of progress attained is required. The aim of this study was to estimate the genetic progress attained for popping expansion (PE) and grain yield (GY) after four cycles of recurrent selection and to compare this progress with the expected progress estimated at the end of each cycle while considering the genetic relationships between the progenies via univariate and multivariate mixed-model approaches. To estimate the genetic parameters and gains from indirect selection, cycles 1, 2, 3, and 4 of a UFLA population were used. To estimate the genetic gains achieved, the following cycles were used: UFLA (original) and cycles 0, 1, 2, 3, and 4, evaluated in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Plant breeding; Grain yield; Popping expansion.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542018000200159
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Genetic progress of phenotypic recurrent selection in popcorn Ciência e Agrotecnologia
Ematné,Hugo Junqueira; Souza,João Cândido de; Biudes,Gustavo Barnabé; Nunes,José Airton Rodrigues; Guedes,Fernando Lisboa.
Popcorn is widely consumed in the south of Minas Gerais; however, up to now no specific breeding program for the region has been carried out. Recurrent selection (RS) is a viable alternative for breeding of this crop; nevertheless, it is necessary to frequently evaluate the progress achieved. Consequently, the purpose of this work was to assess the genetic progress obtained after two cycles of RS for the traits of popping expansion (PE) and grain yield (GY). Cycles one and two of the UFLA - E and UFLA - R populations, the original population (UFLA) and two controls were assessed. The experiment was conducted at the UFLA experimental farm in a randomized block design with eleven replications; ten agronomic traits, including PE and GY, were assessed. Gains...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Popcorn; Popping expansion; Grain yield.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000100003
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Heterotic parametrization for economically important traits in popcorn - DOI: 10.4025/actasciagron.v31i3.4689 Agronomy
Vieira, Rafael Augusto; UEM; Souza Neto, Israel Leite; UEM; Bignotto, Lucas Souto; UEM; Cruz, Cosme Damião; UFV; Amaral Júnior, Antonio Teixeira do; UENF; Scapim, Carlos Alberto; UEM.
Six popcorn varieties were crossed in a diallel mating scheme to obtain 15 F1 hybrids, with the purpose of analyzing the estimates of heterotic parametrization for agronomically important traits. The genitors and hybrids were evaluated in randomized block design with three replications in Viçosa and Visconde do Rio Branco, in Minas Gerais State, Brazil, in three growing seasons. Six traits were evaluated, including grain yield and popping expansion. There were highly significant effects for treatments, varieties and mean heterosis for plant and ear heights, and for the others traits the significance extended to all sources of variation. Amarela and Viçosa revealed superiority for grain yield in relation to performance per se, while Rosa Claro expressed the...
Palavras-chave: 5.01.00.00-9 Agronomia diallel; Heterosis; Popping expansion; Bidirectional dominance; Zea mays L. diallel; Heterosis; Popping expansion; Bidirectional dominance; Zea mays L..
Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4689
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Inbreeding depression and genetic components for popping expansion and other traits in Brazilian populations of popcorn Ciencia e Investigación Agraria
Arnhold,Emmanuel; Soriano Viana,José Marcelo; Mora,Freddy; Vieira Miranda,Glauco; Gonçalves Silva,Ricardo.
The aim of the study was to assess inbreeding depression and determine genetic components in landrace populations of popcorn. Six Brazilian popcorn landraces: Amarelo, Beija-Flor, Branco, Rosa-claro, Roxo and Viçosa, were subjected to self-pollination. Experiments with SO populations and their selfing populations (SI) were conducted in a randomized complete block design. The estimates of inbreeding depression varied from 1.2% (popping expansion) to 79% (grain yield). The gene action was predominantly additive for plant height, ear height and hundred-grain-weight. The dominance genetic effects were important for index of prolificacy and grain yield. The genetic effect of popping expansion was bidirectional with nuil dominance and a predominance of additive...
Tipo: Journal article Palavras-chave: Zea mays L; Mprovement; Popping expansion; Popcorn; Genetic variance.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202010000300011
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Recurrent selection in inbred popcorn families Scientia Agricola
Daros,Máskio; Amaral Jr.,Antônio Teixeira do; Pereira,Messias Gonzaga; Santos,Fabrício Santana; Gabriel,Ana Paula Cândido; Scapim,Carlos Alberto; Freitas Jr.,Silvério de Paiva; Silvério,Lucas.
Although much appreciated in Brazil, commercial popcorn is currently cropped on a fairly small scale. A number of problems need to be solved to increase production, notably the obtaintion of seeds with good agronomic traits and good culinary characteristics. With the objective of developing superior genotypes in popcorn, a second cycle of intrapopulation recurrent selection based on inbred S1 families was carried out. From the first cycle of selection over the UNB-2U population, 222 S1 families were obtained, which were then divided into six sets and evaluated in a randomized complete block design with two replications within the sets. Experiments were carried out in two Brazilian localities. The analysis of variance revealed environmental effects for all...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Breeding program; S1 families; Yield; Popping expansion.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000600008
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