Initial growth and sodium content in rice plants under salinity
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Revista de Ciências Agrárias (Belém. Online) |
Texto Completo: | https://ajaes.ufra.edu.br/index.php/ajaes/article/view/2764 |
Resumo: | Growth analysis is an affordable, cheap, and accurate method to evaluate plant growth against different environmental and management conditions. In this sense, this study aimed to evaluate the effect of salinity on the initial growth and sodium accumulation in the plant tissue of two rice cultivars. The experimental model used was a completely randomized design, constituting a 2 x 2 factorial (BRS Bojuru and IRGA 417 cultivars; with and without salt stress) with five replications. One level of salinity (2.0 dS m-1) was used by the addition of sodium chloride solution, except for the control, which received only tap water. Plant height, the leaf area, shoot dry matter, and sodium content were assessed at 10, 20, 30, 40 and 50 days after emergence (DAE). For calculation of the growth rates [net assimilation rate (NAR), relative growth rate (RGR) and crop growth rate (CGR)] the periods of 10, 30 and 50 DAE were considered. Based on the results obtained, it is concluded that the salinity reduces plant height, leaf area, shoot dry matter, and increases the sodium content in the cultivars’ tissues. At the early growth, the BRS Bojuru cultivar in salt stress condition shows better response than IRGA 417 cultivar. The BRS Bojuru cultivar presents better RGR at 30-50 DAE in salinity condition. The NAR is not influenced by the salinity in the period of 30-50 DAE in both cultivars. |
id |
UFRA_4c403742f119b2fa5226a25ff6753649 |
---|---|
oai_identifier_str |
oai:ojs.www.periodicos.ufra.edu.br:article/2764 |
network_acronym_str |
UFRA |
network_name_str |
Revista de Ciências Agrárias (Belém. Online) |
repository_id_str |
|
spelling |
Initial growth and sodium content in rice plants under salinityCrescimento inicial e acúmulo de sódio em plantas de arroz submetidas à salinidadeOryza sativa L.Abiotic stressGrowth analysisToleranceOryza sativa L.Estresse abióticoAnálise de crescimentoTolerânciaGrowth analysis is an affordable, cheap, and accurate method to evaluate plant growth against different environmental and management conditions. In this sense, this study aimed to evaluate the effect of salinity on the initial growth and sodium accumulation in the plant tissue of two rice cultivars. The experimental model used was a completely randomized design, constituting a 2 x 2 factorial (BRS Bojuru and IRGA 417 cultivars; with and without salt stress) with five replications. One level of salinity (2.0 dS m-1) was used by the addition of sodium chloride solution, except for the control, which received only tap water. Plant height, the leaf area, shoot dry matter, and sodium content were assessed at 10, 20, 30, 40 and 50 days after emergence (DAE). For calculation of the growth rates [net assimilation rate (NAR), relative growth rate (RGR) and crop growth rate (CGR)] the periods of 10, 30 and 50 DAE were considered. Based on the results obtained, it is concluded that the salinity reduces plant height, leaf area, shoot dry matter, and increases the sodium content in the cultivars’ tissues. At the early growth, the BRS Bojuru cultivar in salt stress condition shows better response than IRGA 417 cultivar. The BRS Bojuru cultivar presents better RGR at 30-50 DAE in salinity condition. The NAR is not influenced by the salinity in the period of 30-50 DAE in both cultivars.A análise de crescimento é um método acessível, de baixo custo e bastante preciso, utilizado para avaliar o crescimento vegetal em diferentes condições de ambiente de cultivo e manejo. Diante disso, objetivou-se avaliar o efeito da salinidade sobre o crescimento inicial e acúmulo de sódio no tecido vegetal de duas cultivares de arroz com diferentes níveis de tolerância à salinidade. O delineamento experimental foi inteiramente casualizado, em esquema fatorial 2 x 2 (cultivares BRS Bojuru e IRGA 417, com e sem estresse salino) com cinco repetições. Para simular o estresse salino foi utilizada água com condutividade elétrica de 2 Ds m−1. As avaliações foram realizadas aos 10, 20, 30, 40 e 50 dias após a emergência (DAE), sendo avaliados os parâmetros: altura de planta, área foliar, matéria seca de parte aérea e teor de sódio. Para o cálculo das taxas assimilatórias líquidas (TAL), de crescimento relativo (TCR) e de crescimento da cultura (TCC), contemplaram-se os períodos de 10, 30 e 50 DAE. A salinidade reduz a altura da planta, área foliar e massa de matéria seca das plantas, enquanto aumenta o teor de sódio nos tecidos das cultivares. A cv. BRS Bojuru, submetida à salinidade, tem melhor resposta no início do crescimento que a cv. IRGA 417, e apresenta melhor taxa de crescimento relativo aos 30-50 DAE. A taxa assimilatória líquida não é influenciada pela salinidade no período de 30-50 DAE em ambas as cultivares.Universidade Federal Rural da Amazônia/UFRA2018-10-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ajaes.ufra.edu.br/index.php/ajaes/article/view/2764Amazonian Journal of Agricultural Sciences Journal of Agricultural and Environmental Sciences; Vol 61 (2018): RCARevista de Ciências Agrárias Amazonian Journal of Agricultural and Environmental Sciences; v. 61 (2018): RCA2177-87601517-591Xreponame:Revista de Ciências Agrárias (Belém. Online)instname:Universidade Federal Rural da Amazônia (UFRA)instacron:UFRAporhttps://ajaes.ufra.edu.br/index.php/ajaes/article/view/2764/1520Copyright (c) 2018 Revista de Ciências Agrárias/Amazonian Journal of Agricultural and Environmental Sciencesinfo:eu-repo/semantics/openAccessLemes, Elisa SouzaOliveira, Sandro deNeves, Edinilson Henrique dasRitter, RonanMendonça, André Oliveira deMeneghello, Geri Eduardo2020-01-20T14:15:08Zoai:ojs.www.periodicos.ufra.edu.br:article/2764Revistahttps://ajaes.ufra.edu.br/index.php/ajaes/PUBhttps://ajaes.ufra.edu.br/index.php/ajaes/oaiallan.lobato@ufra.edu.br || ajaes.suporte@gmail.com2177-87601517-591Xopendoar:2020-01-20T14:15:08Revista de Ciências Agrárias (Belém. Online) - Universidade Federal Rural da Amazônia (UFRA)false |
dc.title.none.fl_str_mv |
Initial growth and sodium content in rice plants under salinity Crescimento inicial e acúmulo de sódio em plantas de arroz submetidas à salinidade |
title |
Initial growth and sodium content in rice plants under salinity |
spellingShingle |
Initial growth and sodium content in rice plants under salinity Lemes, Elisa Souza Oryza sativa L. Abiotic stress Growth analysis Tolerance Oryza sativa L. Estresse abiótico Análise de crescimento Tolerância |
title_short |
Initial growth and sodium content in rice plants under salinity |
title_full |
Initial growth and sodium content in rice plants under salinity |
title_fullStr |
Initial growth and sodium content in rice plants under salinity |
title_full_unstemmed |
Initial growth and sodium content in rice plants under salinity |
title_sort |
Initial growth and sodium content in rice plants under salinity |
author |
Lemes, Elisa Souza |
author_facet |
Lemes, Elisa Souza Oliveira, Sandro de Neves, Edinilson Henrique das Ritter, Ronan Mendonça, André Oliveira de Meneghello, Geri Eduardo |
author_role |
author |
author2 |
Oliveira, Sandro de Neves, Edinilson Henrique das Ritter, Ronan Mendonça, André Oliveira de Meneghello, Geri Eduardo |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Lemes, Elisa Souza Oliveira, Sandro de Neves, Edinilson Henrique das Ritter, Ronan Mendonça, André Oliveira de Meneghello, Geri Eduardo |
dc.subject.por.fl_str_mv |
Oryza sativa L. Abiotic stress Growth analysis Tolerance Oryza sativa L. Estresse abiótico Análise de crescimento Tolerância |
topic |
Oryza sativa L. Abiotic stress Growth analysis Tolerance Oryza sativa L. Estresse abiótico Análise de crescimento Tolerância |
description |
Growth analysis is an affordable, cheap, and accurate method to evaluate plant growth against different environmental and management conditions. In this sense, this study aimed to evaluate the effect of salinity on the initial growth and sodium accumulation in the plant tissue of two rice cultivars. The experimental model used was a completely randomized design, constituting a 2 x 2 factorial (BRS Bojuru and IRGA 417 cultivars; with and without salt stress) with five replications. One level of salinity (2.0 dS m-1) was used by the addition of sodium chloride solution, except for the control, which received only tap water. Plant height, the leaf area, shoot dry matter, and sodium content were assessed at 10, 20, 30, 40 and 50 days after emergence (DAE). For calculation of the growth rates [net assimilation rate (NAR), relative growth rate (RGR) and crop growth rate (CGR)] the periods of 10, 30 and 50 DAE were considered. Based on the results obtained, it is concluded that the salinity reduces plant height, leaf area, shoot dry matter, and increases the sodium content in the cultivars’ tissues. At the early growth, the BRS Bojuru cultivar in salt stress condition shows better response than IRGA 417 cultivar. The BRS Bojuru cultivar presents better RGR at 30-50 DAE in salinity condition. The NAR is not influenced by the salinity in the period of 30-50 DAE in both cultivars. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-10-09 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/2764 |
url |
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/2764 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/2764/1520 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural da Amazônia/UFRA |
publisher.none.fl_str_mv |
Universidade Federal Rural da Amazônia/UFRA |
dc.source.none.fl_str_mv |
Amazonian Journal of Agricultural Sciences Journal of Agricultural and Environmental Sciences; Vol 61 (2018): RCA Revista de Ciências Agrárias Amazonian Journal of Agricultural and Environmental Sciences; v. 61 (2018): RCA 2177-8760 1517-591X reponame:Revista de Ciências Agrárias (Belém. Online) instname:Universidade Federal Rural da Amazônia (UFRA) instacron:UFRA |
instname_str |
Universidade Federal Rural da Amazônia (UFRA) |
instacron_str |
UFRA |
institution |
UFRA |
reponame_str |
Revista de Ciências Agrárias (Belém. Online) |
collection |
Revista de Ciências Agrárias (Belém. Online) |
repository.name.fl_str_mv |
Revista de Ciências Agrárias (Belém. Online) - Universidade Federal Rural da Amazônia (UFRA) |
repository.mail.fl_str_mv |
allan.lobato@ufra.edu.br || ajaes.suporte@gmail.com |
_version_ |
1797231629816561664 |