Ecophysiological responses of dual-purpose wheat originating from different cutting management systems
Autor(a) principal: | |
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Data de Publicação: | 2017 |
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/25787 |
Resumo: | Wheat is one of the most cultivated cereals worldwide. Some wheat genotypes may be used for dual purposes that is, in the production of animal fodder and grains. The objective of this study was to compare the growth, partitioning of assimilates, and seed vigor expression of dual-purpose wheat cultivars originating from seeds produced by plants subjected to different cutting management systems. Dual-purpose wheat seeds in the vegetative period were used for this study; these were obtained from the cultivar BRS Umbu produced by plants subjected to different cutting management systems. The experimental design was completely randomized in a factorial scheme, with four replications. The treatments comprised a combination of four seed production systems (one, two, and three cuts) and eight planting seasons (10, 20, 30, 40, 50, 60, 70, and 80 days after emergence [DAE]). Total dry-mass, dry-mass production rate, relative growth rate, net assimilation rate, leaf area index, solar energy conversion efficiency, dry-mass partitioning, seedling emergence in the field, and emergence speed index were evaluated. Data regarding seedling emergence and emergence speed index were adjusted by orthogonal polynomials. Primary growth data were evaluated from the simple logistic equation. From 60 DAE, an inversion of the values of total dry-mass was observed, and the maximum values were observed in plants from seeds produced without cutting management. The highest dry-mass production rates were noted for plants produced by seeds of plants not subjected to cutting management. The highest relative growth rates were noted among plants originating from seeds produced by plants subjected to three- and two-cut treatments. The net assimilation rate was higher in plants originating from seeds produced from plants subjected to cutting management systems. The highest values of emergence were observed for seeds obtained from the three-cut treatment. Similarly, an increase in the values of emergence speed index was observed in seeds from plants subjected to one-cut treatment. Dual-purpose wheat cultivars originating from seeds produced in the absence of cutting management presented higher total dry-mass, dry-mass production rate, and relative growth rate. The net assimilation rate was higher in plants from seeds produced with cutting management systems. Plants produced from seeds subjected to the three-cut production management resulted in more vigorous seeds. |
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Ecophysiological responses of dual-purpose wheat originating from different cutting management systemsRespostas ecofisiológicas de trigo duplo propósito originado de diferentes manejos de corteGrowth analysisLiquid assimilation rateTriticum aestivum (L.)Seed vigor.Análise de crescimentoTaxa assimilatória líquidaTriticum aestivum (L.)Vigor de sementes.Wheat is one of the most cultivated cereals worldwide. Some wheat genotypes may be used for dual purposes that is, in the production of animal fodder and grains. The objective of this study was to compare the growth, partitioning of assimilates, and seed vigor expression of dual-purpose wheat cultivars originating from seeds produced by plants subjected to different cutting management systems. Dual-purpose wheat seeds in the vegetative period were used for this study; these were obtained from the cultivar BRS Umbu produced by plants subjected to different cutting management systems. The experimental design was completely randomized in a factorial scheme, with four replications. The treatments comprised a combination of four seed production systems (one, two, and three cuts) and eight planting seasons (10, 20, 30, 40, 50, 60, 70, and 80 days after emergence [DAE]). Total dry-mass, dry-mass production rate, relative growth rate, net assimilation rate, leaf area index, solar energy conversion efficiency, dry-mass partitioning, seedling emergence in the field, and emergence speed index were evaluated. Data regarding seedling emergence and emergence speed index were adjusted by orthogonal polynomials. Primary growth data were evaluated from the simple logistic equation. From 60 DAE, an inversion of the values of total dry-mass was observed, and the maximum values were observed in plants from seeds produced without cutting management. The highest dry-mass production rates were noted for plants produced by seeds of plants not subjected to cutting management. The highest relative growth rates were noted among plants originating from seeds produced by plants subjected to three- and two-cut treatments. The net assimilation rate was higher in plants originating from seeds produced from plants subjected to cutting management systems. The highest values of emergence were observed for seeds obtained from the three-cut treatment. Similarly, an increase in the values of emergence speed index was observed in seeds from plants subjected to one-cut treatment. Dual-purpose wheat cultivars originating from seeds produced in the absence of cutting management presented higher total dry-mass, dry-mass production rate, and relative growth rate. The net assimilation rate was higher in plants from seeds produced with cutting management systems. Plants produced from seeds subjected to the three-cut production management resulted in more vigorous seeds.O trigo é um dos cereais mais cultivados em todo o mundo, alguns genótipos podem apresentar dupla aptidão, ou seja, capacidade de produzir forragem para animais e grãos. O trabalho teve como objetivo comparar o crescimento, a partição de assimilados e a expressão do vigor de sementes de trigo duplo propósito originado a partir de sementes produzidas por plantas submetidas a diferentes manejos de corte. Foram utilizadas sementes de trigo duplo propósito da cultivar BRS Umbu, produzidas por plantas submetidas a diferentes manejos de corte no período vegetativo. O delineamento experimental foi inteiramente casualizado em esquema fatorial, com quatro repetições. Os tratamentos consistiram na combinação de quatro manejos de produção de sementes (sem; um; dois e três cortes) e oito épocas de coleta de plantas (10; 20; 30; 40; 50; 60; 70 e 80 dias após a emergência (DAE). Foram avaliadas a massa seca total, taxa de produção de massa seca, taxa de crescimento relativo, taxa assimilatória liquida, índice de área foliar, eficiência de conversão de energia solar, partição de massa seca, emergência de plântulas em substrato e índice de velocidade de emergência de plântulas. Os dados referentes à emergência e índice de velocidade de emergência de plântulas foram ajustados por polinômios ortogonais. Dados primários de crescimento foram avaliados a partir da equação logística simples. A partir dos 60 DAE, verificou-se a inversão dos valores de massa seca total, onde os máximos foram observados em plantas provenientes de sementes produzidas sem manejo de corte. Os maiores valores de taxa de produção de massa seca foram determinados em plantas produzidas por sementes de plantas não submetidas ao corte no seu manejo de produção. Os maiores valores da taxa de crescimento relativo foram obtidos em plantas originadas de sementes produzidas por plantas submetidas a três e dois cortes, assim como a taxa assimilatória líquida, que foi superior em plantas originadas de sementes produzidas a partir de plantas submetidas aos manejos com corte. Os maiores valores de emergência foram obtidos em sementes do tratamento que constou de três cortes durante o manejo de produção, de maneira similar, o índice de velocidade de emergência demonstrou acréscimo nos valores a partir do tratamento que constou de um corte durante o manejo de produção de sementes. Plantas de trigo duplo propósito originadas de sementes produzida na ausência de corte atingem maior alocação de massa seca total, taxa de produção de massa seca e taxa de crescimento relativo. A taxa assimilatória líquida é superior em plantas provenientes de sementes produzidas com manejo de corte. Sementes mais vigorosas são obtidas quando produzidas por plantas provenientes do manejo de produção com três cortes.UEL2017-06-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2578710.5433/1679-0359.2017v38n3p1641Semina: Ciências Agrárias; Vol. 38 No. 3 (2017); 1641-1650Semina: Ciências Agrárias; v. 38 n. 3 (2017); 1641-16501679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/25787/21082Copyright (c) 2017 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessKoch, FelipeCarvalho, Ivan RicardoSzareski, Vinícius JardelDemari, Gustavo HenriqueMonteiro, Manoela AndradePimentel, João RobertoNardino, MaiconPedó, TiagoSouza, Velci Queiróz deAumonde, Tiago Zanatta2022-10-24T14:09:17Zoai:ojs.pkp.sfu.ca:article/25787Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-24T14:09:17Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Ecophysiological responses of dual-purpose wheat originating from different cutting management systems Respostas ecofisiológicas de trigo duplo propósito originado de diferentes manejos de corte |
title |
Ecophysiological responses of dual-purpose wheat originating from different cutting management systems |
spellingShingle |
Ecophysiological responses of dual-purpose wheat originating from different cutting management systems Koch, Felipe Growth analysis Liquid assimilation rate Triticum aestivum (L.) Seed vigor. Análise de crescimento Taxa assimilatória líquida Triticum aestivum (L.) Vigor de sementes. |
title_short |
Ecophysiological responses of dual-purpose wheat originating from different cutting management systems |
title_full |
Ecophysiological responses of dual-purpose wheat originating from different cutting management systems |
title_fullStr |
Ecophysiological responses of dual-purpose wheat originating from different cutting management systems |
title_full_unstemmed |
Ecophysiological responses of dual-purpose wheat originating from different cutting management systems |
title_sort |
Ecophysiological responses of dual-purpose wheat originating from different cutting management systems |
author |
Koch, Felipe |
author_facet |
Koch, Felipe Carvalho, Ivan Ricardo Szareski, Vinícius Jardel Demari, Gustavo Henrique Monteiro, Manoela Andrade Pimentel, João Roberto Nardino, Maicon Pedó, Tiago Souza, Velci Queiróz de Aumonde, Tiago Zanatta |
author_role |
author |
author2 |
Carvalho, Ivan Ricardo Szareski, Vinícius Jardel Demari, Gustavo Henrique Monteiro, Manoela Andrade Pimentel, João Roberto Nardino, Maicon Pedó, Tiago Souza, Velci Queiróz de Aumonde, Tiago Zanatta |
author2_role |
author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Koch, Felipe Carvalho, Ivan Ricardo Szareski, Vinícius Jardel Demari, Gustavo Henrique Monteiro, Manoela Andrade Pimentel, João Roberto Nardino, Maicon Pedó, Tiago Souza, Velci Queiróz de Aumonde, Tiago Zanatta |
dc.subject.por.fl_str_mv |
Growth analysis Liquid assimilation rate Triticum aestivum (L.) Seed vigor. Análise de crescimento Taxa assimilatória líquida Triticum aestivum (L.) Vigor de sementes. |
topic |
Growth analysis Liquid assimilation rate Triticum aestivum (L.) Seed vigor. Análise de crescimento Taxa assimilatória líquida Triticum aestivum (L.) Vigor de sementes. |
description |
Wheat is one of the most cultivated cereals worldwide. Some wheat genotypes may be used for dual purposes that is, in the production of animal fodder and grains. The objective of this study was to compare the growth, partitioning of assimilates, and seed vigor expression of dual-purpose wheat cultivars originating from seeds produced by plants subjected to different cutting management systems. Dual-purpose wheat seeds in the vegetative period were used for this study; these were obtained from the cultivar BRS Umbu produced by plants subjected to different cutting management systems. The experimental design was completely randomized in a factorial scheme, with four replications. The treatments comprised a combination of four seed production systems (one, two, and three cuts) and eight planting seasons (10, 20, 30, 40, 50, 60, 70, and 80 days after emergence [DAE]). Total dry-mass, dry-mass production rate, relative growth rate, net assimilation rate, leaf area index, solar energy conversion efficiency, dry-mass partitioning, seedling emergence in the field, and emergence speed index were evaluated. Data regarding seedling emergence and emergence speed index were adjusted by orthogonal polynomials. Primary growth data were evaluated from the simple logistic equation. From 60 DAE, an inversion of the values of total dry-mass was observed, and the maximum values were observed in plants from seeds produced without cutting management. The highest dry-mass production rates were noted for plants produced by seeds of plants not subjected to cutting management. The highest relative growth rates were noted among plants originating from seeds produced by plants subjected to three- and two-cut treatments. The net assimilation rate was higher in plants originating from seeds produced from plants subjected to cutting management systems. The highest values of emergence were observed for seeds obtained from the three-cut treatment. Similarly, an increase in the values of emergence speed index was observed in seeds from plants subjected to one-cut treatment. Dual-purpose wheat cultivars originating from seeds produced in the absence of cutting management presented higher total dry-mass, dry-mass production rate, and relative growth rate. The net assimilation rate was higher in plants from seeds produced with cutting management systems. Plants produced from seeds subjected to the three-cut production management resulted in more vigorous seeds. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-06-13 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Avaliado por pares |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/25787 10.5433/1679-0359.2017v38n3p1641 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/25787 |
identifier_str_mv |
10.5433/1679-0359.2017v38n3p1641 |
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/25787/21082 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2017 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2017 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. 38 No. 3 (2017); 1641-1650 Semina: Ciências Agrárias; v. 38 n. 3 (2017); 1641-1650 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_ |
1799306075857485824 |