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Agronomic performance of wheat cultivars in response to nitrogen fertilization levels - doi: 10.4025/actasciagron.v34i3.14468 Agronomy
Benin, Giovani; Universidade Tecnológica Federal do Paraná; Bornhofen, Elesandro; Universidade Tecnológica Federal do Paraná; Beche, Eduardo; Universidade Tecnológica Federal do Paraná; Pagliosa, Eduardo Stefani; Universidade Tecnológica Federal do Paraná; Silva, Cristiano Lemes da; Universidade Tecnológica Federal do Paraná; Pinnow, Cilas; Universidade Tecnológica Federal do Paraná.
The release of wheat cultivars with different nutritional demands and yield potential hinders generalized recommendations for nitrogen fertilization. This study was designed to evaluate the effects of different nitrogen fertilization levels (0, 60, 120 and 180 kg ha-1 of N) on the agronomic performance of six wheat cultivars (Triticum aestivum L.) in two harvests. A randomized block factorial design with three replications was used. The response to fertilization levels was evaluated through AMMI (Additive Main effects and Multiplicative Interaction) and GGE (Genotype main effects and Genotype x Environment interaction) biplot graphic methodologies and polynomial regression. There was genetic variability in response to nitrogen fertilization in the...
Palavras-chave: 5.01.03.00-8 Triticum aestivum L.; Grain yield; AMMI; GGE biplot.
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14468
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Grain yield and baking quality of wheat under different sowing dates Agronomy
Silva, Raphael Rossi; Universidade Estadual de Londrina; Benin, Giovani; Universidade Tecnológica Federal do Paraná; Almeida, Juliano Luiz de; Fundação Agrária de Pesquisa Agropecuária; Fonseca, Inês Cristina de Batista; Universidade Estadual de Londrina; Zucareli, Claudemir; Universidade Estadual de Londrina.
Choosing the right sowing dates can maximize the outcomes of the interaction between genotype and environment, thus increasing grain yield and baking quality of wheat (Triticum aestivum L.). The present study aimed at determining the most appropriate sowing dates that maximize grain yield and baking quality of wheat cultivars. Seven wheat cultivars (BRS 179, BRS Guamirim, BRS Guabiju, BRS Umbu, Safira, CD 105 and CD 115) were evaluated at four sowing dates (the 1st and the 15th of June and July) in two harvesting seasons (2007 and 2008). The study was setup in a completely randomized block design with four repetitions. The effects of the year and sowing date when combined explained 93% of the grain yield variance. In 2007, the CD 105 and Safira cultivars...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.01.03.00-8 GGE biplot; Baking quality; Gluten strength; Alveograph Fitotecnia.
Ano: 2014 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/16180
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The use of photothermal quotient and frost risk to identify suitable sowing dates for wheat doi: 10.4025/actasciagron.v36i1.14854 Agronomy
Silva, Raphael Rossi; Universidade Tecnológica Federal do Paraná; Benin, Giovani; Universidade Tecnológica Federal do Paraná; Marchese, José Abramo; Universidade Tecnológica Federal do Paraná; Silva, Éder David Borges da; Universidade Federal de Santa Maria; Marchioro, Volmir Sérgio; Cooperativa Central de Pesquisa Agrícola.
The potential yield of wheat is mainly determined by temperature, solar radiation and the photothermal quotient. The objective of this study was to determine the temporal and spatial variability of the photothermal quotient and the frost risk to identify suitable sowing dates for wheat in Parana State, Brazil. The results showed that the photothermal quotient has greater spatial variability than temporal variability. The sowing date affects crop conditions that can in turn affect yield. However, the photothermal quotient and frost risk fluctuate differently in different Value for Cultivation and Use (VCU) regions. The regions VCU 1 and VCU 2 showed greater temporal variability of the photothermal quotient. The photothermal quotient ranged from 1.5 to 2.0...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.01.03.00-8 Triticum aestivum (L.); Yield potential; Solar radiation 5.01.03.00-8.
Ano: 2014 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14854
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