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9 results on '"Benin, Giovani"'

4. Agronomic performance of wheat cultivars in response to nitrogen fertilization levels - doi: 10.4025/actasciagron.v34i3.14468

Author

Benin, Giovani, Bornhofen, Elesandro, Beche, Eduardo, Pagliosa, Eduardo Stefani, Silva, Cristiano Lemes da, and Pinnow, Cilas

Subjects
AMMI, grain yield, food and beverages, GGE biplot, Triticum aestivum L
Abstract

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 cultivars studied. The biggest increases in yield were observed under a more suitable water regime. The higher performance of yield components was associated with higher nitrogen fertilization levels.

Published
2011

5. The use of photothermal quotient and frost risk to identify suitable sowing dates for wheat doi: 10.4025/actasciagron.v36i1.14854

Author

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES), 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, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES), 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, and Marchioro, Volmir Sérgio; Cooperativa Central de Pesquisa Agrícola

Abstract

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 MJ m-2 day ºC in VCU 1, from 1.1 to 1.5 MJ m-2 day ºC in VCU 2 and from 1.0 to 1.2 MJ m-2 day ºC in VCU 3. Sowing performed in June provided the greatest photothermal quotient in all VCU regions. However, June sowing increased the frost risk in VCU 1. Thus, the sowing date can be used as a management tool for the attainment of higher yield in wheat.

Published
2014

6. Grain yield and baking quality of wheat under different sowing dates

Author

CAPES, 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, CAPES, 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, and Zucareli, Claudemir; Universidade Estadual de Londrina

Abstract

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 had the highest grain yield (GY) for all sowing dates. Only the BRS Guabiju and Safira cultivars possessed high baking quality for all sowing dates assessed. In 2008, the environmental conditions were favorable for superior GY, but the baking quality was inferior. Considering adapted cultivars and sowing dates, it is possible to maximize grain yield and baking quality of wheat.

Published
2014

8. Grain yield and baking quality of wheat under different sowing dates.

Author

Rossi Silva, Raphael, Benin, Giovani, de Almeida, Juliano Luiz, de Batista Fonseca, Inês Cristina, and Zucareli, Claudemir

Subjects
WHEAT quality, CROP yields, SOWING, WHEAT varieties, HARVESTING
Abstract

Copyright of Acta Scientiarum: Agronomy is the property of Universidade Estadual de Maringa and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2014
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9. The use of photothermal quotient and frost risk to identify suitable sowing dates for wheat.

Author

Rossi Silva, Raphael, Benin, Giovani, Abramo Marchese, José, Borges da Silva, Éder David, and Sérgio Marchioro, Volmir

Subjects
SOWING, WHEAT, FROST damage to plants, EFFECT of temperature on plants, EFFECT of solar radiation on plants, PHOTOTHERMAL effect, CROP yields
Abstract

Copyright of Acta Scientiarum: Agronomy is the property of Universidade Estadual de Maringa and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2014
Full Text
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