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| Machado,Juliana Medianeira; Dall'Agnol,Miguel; Motta,Eder Alexandre Minski da; Pereira,Emerson André; Simioni,Carine; Weiler,Roberto Luis; Zuñeda,Marcos Perera; Ferreira,Priscila Becker. |
| ABSTRACT The objective of this study was to evaluate the influence of photoperiod on the forage yield by ecotypes and intraspecific hybrids of P. notatum. Tetraploid ecotypes from the United States Department of Agriculture and the National University of the Northeast in Argentina, in addition to six intraspecific hybrids, totaling 19 ecotypes, were assessed. The materials evaluated were subjected to an extended photoperiod (14 h of light) and natural photoperiod from July 2011 to October 2012. The experimental design was a completely randomized factorial scheme of 19 × 2 (ecotypes × photoperiod) consisting of five replicates. The materials were influenced differentially by the variation in photoperiod, with one group showing high sensitivity, whereas... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ecotypes; Forage yield; Hybrids; Subtropical grass. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000100008 |
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| Lopes,Rodrigo Ramos; Franke,Lucia Brandão; Souza,Cleber Henrique Lopes de; Bertoncelli,Patricia; Graminho,Larissa Arnhold; Ávila,Mariana Rockenbach de; Pereira,Emerson André; Motta,Eder Alexandre Minski da. |
| ABSTRACT This study aimed to estimate the genetic parameters, genetic correlations, genetic dissimilarity, and predicted gains with the selection of interspecific apomictic Paspalum plicatulum × Paspalum guenoarum hybrids in relation to seed yield traits. Nineteen genotypes that showed increased forage yield in previous studies were planted in a randomized complete block design with ten blocks. Traits evaluated in this study were: number of tillers/plant, number of reproductive tillers/plant, number of racemes/inflorescence, number of seeds/inflorescence, weight of a thousand seeds, and seed yield. Data were analyzed using a mixed model approach. The genotypes evaluated in our study showed improvement potential in relation to high heritability (H a 2... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Clustering analysis; Genetic correlation; Genetic gains; Genetic parameters; REML/BLUP. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100402 |
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| Motta,Eder Alexandre Minski da; Dall'Agnol,Miguel; Pereira,Emerson André; Machado,Juliana Medianeira; Simioni,Carine. |
| RESUMO O objetivo deste estudo foi avaliar a expressão de caracteres agronômicos e a tolerância ao frio de híbridos apomíticos de Paspalum plicatulum x P. guenoarum, bem como estimar suas correlações fenotípicas, em duas regiões edafoclimáticas distintas. O estudo foi conduzido em diferentes locais e anos de avaliação, em delineamento de blocos ao acaso, com três repetições. Foram avaliados quatro híbridos interespecíficos de Paspalum, dois genótipos de P. guenoarum e a cv. Aruana (Panicum maximum), utilizada como testemunha. Os híbridos H12, H13, H20 e H22 apresentaram superioridade para os caracteres agronômicos avaliados e tolerância ao frio, em relação às cvs. Rojas e Aruana e ao ecótipo Azulão, e são indicados para novas etapas de avaliação, como... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Apomixia; Hibridação; Paspalum guenoarum; Paspalum plicatulum; Produção de forragem. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000100191 |
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| Motta,Eder Alexandre Minski da; Dall'Agnol,Miguel; Nascimento,Felipe Link; Pereira,Emerson André; Machado,Juliana Medianeira; Barbosa,Marlon Risso; Simioni,Carine; Ferreira,Priscila Becker. |
| ABSTRACT: The goal of this study was to assess the variability of Paspalum plicatulum x P. guenoarum interspecific hybrids in terms of agronomic performance and their tolerance to cold conditions, as well as to estimate the correlation of different phenotypic characters associated with forage production. Twenty hybrids plants were used, besides one access P. guenoarum , one of P. plicatulum and the cultivar 'Pensacola' ( P. notatum ). Assessments were performed on individual plants, in a completely randomized design with five repetitions. Paspalum genotypes presented variability in total dry matter, leaf dry mass, leaf: stem ratio, and tolerance to cold. We suggest selection of the hybrids 08Q01 and 08Q44 for new stages within a forage improvement... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Apomixis; Native grasses; Hybridization. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000601025 |
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