Wheat yield and seed physiological quality affected by initial seed vigor, sowing density, and environmental conditions
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/42134 |
Resumo: | Optimization of seed density range, combined with the use of quality seeds may help generate more profit from wheat production, as these factors affect grain yield and the quality of seeds. The aim of this study was to evaluate the effects of initial vigor level and sowing densities on the productive performance of the plants and the physiological performance of the seeds of two wheat cultivars in two cultivation environments. The experiment was carried out in the cities of Londrina and Ponta Grossa, Paraná, Brazil, in a randomized block design with four replications, following a 2 × 2 × 4 factorial scheme with two levels of seed vigor (high and low), two cultivars (BRS Gralha-Azul and BRS Sabiá), and four sowing densities (150, 250, 350, and 450 seeds m - 2). The following characteristics were evaluated: emerged seedlings, shoot dry matter, spike density, vegetation index, and grain yield. Additionally, the physiological potential of the seeds produced in Londrina was evaluated by first germination count, germination, accelerated aging, seedling emergence, and emergence speed index tests. The increase in density up to 450 seeds m-2 favored the productive performance of the crop in both cultivation environments; however, it reduced the physiological performance of the seeds produced in Londrina. Both cultivars had better performance and grain yield in Londrina and Ponta Grossa, respectively. High-vigor seeds favored the establishment of the stand, especially under unfavorable environmental conditions. |
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Wheat yield and seed physiological quality affected by initial seed vigor, sowing density, and environmental conditionsRendimento de grãos e qualidade fisiológica de sementes de trigo influenciados pelo vigor inicial da semente, densidade de semeadura e condições ambientaisGerminationPlant populationSeed qualityTriticum aestivum L.GerminaçãoPopulação de plantasQualidade de sementesTriticum aestivum L.Optimization of seed density range, combined with the use of quality seeds may help generate more profit from wheat production, as these factors affect grain yield and the quality of seeds. The aim of this study was to evaluate the effects of initial vigor level and sowing densities on the productive performance of the plants and the physiological performance of the seeds of two wheat cultivars in two cultivation environments. The experiment was carried out in the cities of Londrina and Ponta Grossa, Paraná, Brazil, in a randomized block design with four replications, following a 2 × 2 × 4 factorial scheme with two levels of seed vigor (high and low), two cultivars (BRS Gralha-Azul and BRS Sabiá), and four sowing densities (150, 250, 350, and 450 seeds m - 2). The following characteristics were evaluated: emerged seedlings, shoot dry matter, spike density, vegetation index, and grain yield. Additionally, the physiological potential of the seeds produced in Londrina was evaluated by first germination count, germination, accelerated aging, seedling emergence, and emergence speed index tests. The increase in density up to 450 seeds m-2 favored the productive performance of the crop in both cultivation environments; however, it reduced the physiological performance of the seeds produced in Londrina. Both cultivars had better performance and grain yield in Londrina and Ponta Grossa, respectively. High-vigor seeds favored the establishment of the stand, especially under unfavorable environmental conditions.O ajuste da densidade de semeadura ótima para a cultura trigo aliado à utilização de sementes de qualidade pode contribuir para gerar maior lucratividade na produção de trigo, pois esses fatores afetam o rendimento de grãos e a qualidade das sementes. O objetivo do trabalho foi avaliar os efeitos do nível de vigor inicial e das densidades de semeadura sobre o desempenho produtivo das plantas e o desempenho fisiológico das sementes de duas cultivares de trigo em dois ambientes de cultivo. O experimento foi conduzido nas cidades de Londrina e em Ponta Grossa, Paraná, Brasil, em delineamento experimental de blocos casualizados com quatro repetições, em esquema fatorial 2 × 2 × 4, sendo avaliados dois níveis de vigor de sementes (alto e baixo), duas cultivares (BRS Gralha-Azul e BRS Sabiá) e quatro densidades de semeadura (150, 250, 350 e 450 sementes m -2). As seguintes características foram avaliadas: número de plântulas emergidas, matéria seca da parte aérea de plantas, densidade de espigas, índice de vegetação e rendimento de grãos. Adicionalmente, foi avaliado o potencial fisiológico das sementes produzidas em Londrina pelos testes de primeira contagem, germinação, envelhecimento acelerado, emergência de plântulas e índice de velocidade de emergência. O aumento da densidade até 450 sementes m -2 favoreceu o desempenho produtivo da cultura nos dois locais de cultivo, porém, reduziu o desempenho fisiológico das sementes produzidas em Londrina. As cultivares BRS Gralha-Azul e BRS Sabiá apresentaram desempenho e rendimento de grãos superiores em Londrina e Ponta Grossa, respectivamente. Sementes de alto vigor favorecem o estabelecimento do estande, principalmente em condições ambientais desfavoráveis.UEL2021-04-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa de CampoPesquisa de Campoapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4213410.5433/1679-0359.2021v42n3Supl1p1595Semina: Ciências Agrárias; Vol. 42 No. 3Supl1 (2021); 1595-1614Semina: Ciências Agrárias; v. 42 n. 3Supl1 (2021); 1595-16141679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/42134/29443Copyright (c) 2021 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessMarinho, Jéssica de LucenaSilva, Sérgio RicardoSouza, Diogo Nascimento deFonseca, Inês Cristina de BatistaBazzo, José Henrique BizzarriZucareli, Claudemir2022-09-30T16:01:46Zoai:ojs.pkp.sfu.ca:article/42134Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-09-30T16:01:46Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Wheat yield and seed physiological quality affected by initial seed vigor, sowing density, and environmental conditions Rendimento de grãos e qualidade fisiológica de sementes de trigo influenciados pelo vigor inicial da semente, densidade de semeadura e condições ambientais |
title |
Wheat yield and seed physiological quality affected by initial seed vigor, sowing density, and environmental conditions |
spellingShingle |
Wheat yield and seed physiological quality affected by initial seed vigor, sowing density, and environmental conditions Marinho, Jéssica de Lucena Germination Plant population Seed quality Triticum aestivum L. Germinação População de plantas Qualidade de sementes Triticum aestivum L. |
title_short |
Wheat yield and seed physiological quality affected by initial seed vigor, sowing density, and environmental conditions |
title_full |
Wheat yield and seed physiological quality affected by initial seed vigor, sowing density, and environmental conditions |
title_fullStr |
Wheat yield and seed physiological quality affected by initial seed vigor, sowing density, and environmental conditions |
title_full_unstemmed |
Wheat yield and seed physiological quality affected by initial seed vigor, sowing density, and environmental conditions |
title_sort |
Wheat yield and seed physiological quality affected by initial seed vigor, sowing density, and environmental conditions |
author |
Marinho, Jéssica de Lucena |
author_facet |
Marinho, Jéssica de Lucena Silva, Sérgio Ricardo Souza, Diogo Nascimento de Fonseca, Inês Cristina de Batista Bazzo, José Henrique Bizzarri Zucareli, Claudemir |
author_role |
author |
author2 |
Silva, Sérgio Ricardo Souza, Diogo Nascimento de Fonseca, Inês Cristina de Batista Bazzo, José Henrique Bizzarri Zucareli, Claudemir |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Marinho, Jéssica de Lucena Silva, Sérgio Ricardo Souza, Diogo Nascimento de Fonseca, Inês Cristina de Batista Bazzo, José Henrique Bizzarri Zucareli, Claudemir |
dc.subject.por.fl_str_mv |
Germination Plant population Seed quality Triticum aestivum L. Germinação População de plantas Qualidade de sementes Triticum aestivum L. |
topic |
Germination Plant population Seed quality Triticum aestivum L. Germinação População de plantas Qualidade de sementes Triticum aestivum L. |
description |
Optimization of seed density range, combined with the use of quality seeds may help generate more profit from wheat production, as these factors affect grain yield and the quality of seeds. The aim of this study was to evaluate the effects of initial vigor level and sowing densities on the productive performance of the plants and the physiological performance of the seeds of two wheat cultivars in two cultivation environments. The experiment was carried out in the cities of Londrina and Ponta Grossa, Paraná, Brazil, in a randomized block design with four replications, following a 2 × 2 × 4 factorial scheme with two levels of seed vigor (high and low), two cultivars (BRS Gralha-Azul and BRS Sabiá), and four sowing densities (150, 250, 350, and 450 seeds m - 2). The following characteristics were evaluated: emerged seedlings, shoot dry matter, spike density, vegetation index, and grain yield. Additionally, the physiological potential of the seeds produced in Londrina was evaluated by first germination count, germination, accelerated aging, seedling emergence, and emergence speed index tests. The increase in density up to 450 seeds m-2 favored the productive performance of the crop in both cultivation environments; however, it reduced the physiological performance of the seeds produced in Londrina. Both cultivars had better performance and grain yield in Londrina and Ponta Grossa, respectively. High-vigor seeds favored the establishment of the stand, especially under unfavorable environmental conditions. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-04-22 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa de Campo Pesquisa de Campo |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/42134 10.5433/1679-0359.2021v42n3Supl1p1595 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/42134 |
identifier_str_mv |
10.5433/1679-0359.2021v42n3Supl1p1595 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/42134/29443 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2021 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2021 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 42 No. 3Supl1 (2021); 1595-1614 Semina: Ciências Agrárias; v. 42 n. 3Supl1 (2021); 1595-1614 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306084804984832 |