Vigor of seeds and biochemical activity in rice seedlings treated with organic acids
Autor(a) principal: | |
---|---|
Data de Publicação: | 2007 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Gaúcha (Online) |
Texto Completo: | http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/256 |
Resumo: | Vegetal residues in anaerobic decomposition in irrigated farmings of rice produce organic acids, such as, acetic, propionic, butiric, formic, vanilic, which affect the establishment of seedlings. Therefore the present work had for objective to analyze the physiological quality of seeds and bioquimical activity of rice BR IRGA-409 seedlings, treated with several concen- trations (zero; 1; 2; 4; 8 and 16 ml/L) of acetic and propionic acids. In order to performer this some assay were conducted such as: tests of vigor (first count, electrical conductivity, emergency speed index and emergency), chemical composition (starch, total soluble sugars and protein contents), determinations of the activity of α-amylase and fosfatase acid, and measurements of growth (chlorophyll concentration and leaf area). The regression analysis showed that the germination, emergency speed index, the emer- gency of seedlings and the electric conductivity were significantly affected with the increase in the concentrations of acid. Starch, total soluble sugars and protein contents were reduced on higher concentrations (≥8 ml/L) for both acids. The total activity of α-amylase was more enhanced by acetic acid than propionic acid, while the activity of phosfatase-acid was not modified. The chlorophyll contents and leaf area decreased with increment on concentrations of acetic and propionic acids. |
id |
SEAPDR_ad5f751360beb7287e8639414bf18974 |
---|---|
oai_identifier_str |
oai:ojs.revistapag.agricultura.rs.gov.br:article/256 |
network_acronym_str |
SEAPDR |
network_name_str |
Pesquisa Agropecuária Gaúcha (Online) |
repository_id_str |
|
spelling |
Vigor of seeds and biochemical activity in rice seedlings treated with organic acids Vigor de sementes e atividade bioquímica em plântulas de arroz submetidas a ácidos orgânicosacetic acid, propionic acid, germination, α-amylase, fosfatase acid, chlorophyll concentration, leaf area.ácido acético, ácido propiônico, germinação, α-amilase, fosfatase ácida, clorofila, área foliar.Vegetal residues in anaerobic decomposition in irrigated farmings of rice produce organic acids, such as, acetic, propionic, butiric, formic, vanilic, which affect the establishment of seedlings. Therefore the present work had for objective to analyze the physiological quality of seeds and bioquimical activity of rice BR IRGA-409 seedlings, treated with several concen- trations (zero; 1; 2; 4; 8 and 16 ml/L) of acetic and propionic acids. In order to performer this some assay were conducted such as: tests of vigor (first count, electrical conductivity, emergency speed index and emergency), chemical composition (starch, total soluble sugars and protein contents), determinations of the activity of α-amylase and fosfatase acid, and measurements of growth (chlorophyll concentration and leaf area). The regression analysis showed that the germination, emergency speed index, the emer- gency of seedlings and the electric conductivity were significantly affected with the increase in the concentrations of acid. Starch, total soluble sugars and protein contents were reduced on higher concentrations (≥8 ml/L) for both acids. The total activity of α-amylase was more enhanced by acetic acid than propionic acid, while the activity of phosfatase-acid was not modified. The chlorophyll contents and leaf area decreased with increment on concentrations of acetic and propionic acids. Resíduos vegetais em decomposição anaeróbica em lavouras irrigadas de arroz produzem ácidos orgânicos, tais como acético, propiônico, butírico, fórmico, vanílico, que afetam o estabelecimento das plântulas. Portanto, o presente trabalho teve por objetivo analisar a qualidade fisiológica de sementes e a atividade bioquímica em plântulas de arroz BR IRGA-409 submetidas a concentrações zero, 1; 2; 4; 8 e 16 ml/L de ácido acético e propiônico. Para isso, utilizam-se testes de vigor (primeira contagem, CE, IVE e emergência, composição química (amido, açúcares solúveis totais e proteína totais), atividade das enzimas α-amilase e fosfatase ácida e medidas de crescimento (teor de clorofila total e área foliar). A análise de regressão mostrou que a germinação, o índice de velocidade de emergência de plântulas, a emergência de plântulas e a condutividade elétrica foram significativamente afetados com o aumento nas concentrações dos ácidos. O conteúdo de amido, açúcares solúveis totais e proteína foi reduzido a partir da concentração de 8 ml/L, por ambos os ácidos. A atividade total da α-amilase foi mais estimulada pelo ácido acético do que pelo propiônico, enquanto que a fosfatase ácida não foi alterada. Os teores de clorofila e a área foliar foram reduzidos com o incremento na concentração de ambos os ácidos. Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural2007-12-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/256Pesquisa Agropecuária Gaúcha; Vol 13 No 1/2 (2007): PESQ. AGROP. GAÚCHA; 79-88Pesquisa Agropecuária Gaúcha; v. 13 n. 1/2 (2007): PESQ. AGROP. GAÚCHA; 79-882595-76860104-9070reponame:Pesquisa Agropecuária Gaúcha (Online)instname:Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sulinstacron:SEAPDRporhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/256/222Neves, Luiz Augusto SallesMoraes, Dario MuntLopes, Nei Fernandes Abreu, Claudete Miranda info:eu-repo/semantics/openAccess2024-04-22T12:36:26Zoai:ojs.revistapag.agricultura.rs.gov.br:article/256Revistahttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapagPUBhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/oaipag@agricultura.rs.gov.br||2595-76860104-9070opendoar:2024-04-22T12:36:26Pesquisa Agropecuária Gaúcha (Online) - Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sulfalse |
dc.title.none.fl_str_mv |
Vigor of seeds and biochemical activity in rice seedlings treated with organic acids Vigor de sementes e atividade bioquímica em plântulas de arroz submetidas a ácidos orgânicos |
title |
Vigor of seeds and biochemical activity in rice seedlings treated with organic acids |
spellingShingle |
Vigor of seeds and biochemical activity in rice seedlings treated with organic acids Neves, Luiz Augusto Salles acetic acid, propionic acid, germination, α-amylase, fosfatase acid, chlorophyll concentration, leaf area. ácido acético, ácido propiônico, germinação, α-amilase, fosfatase ácida, clorofila, área foliar. |
title_short |
Vigor of seeds and biochemical activity in rice seedlings treated with organic acids |
title_full |
Vigor of seeds and biochemical activity in rice seedlings treated with organic acids |
title_fullStr |
Vigor of seeds and biochemical activity in rice seedlings treated with organic acids |
title_full_unstemmed |
Vigor of seeds and biochemical activity in rice seedlings treated with organic acids |
title_sort |
Vigor of seeds and biochemical activity in rice seedlings treated with organic acids |
author |
Neves, Luiz Augusto Salles |
author_facet |
Neves, Luiz Augusto Salles Moraes, Dario Munt Lopes, Nei Fernandes Abreu, Claudete Miranda |
author_role |
author |
author2 |
Moraes, Dario Munt Lopes, Nei Fernandes Abreu, Claudete Miranda |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Neves, Luiz Augusto Salles Moraes, Dario Munt Lopes, Nei Fernandes Abreu, Claudete Miranda |
dc.subject.por.fl_str_mv |
acetic acid, propionic acid, germination, α-amylase, fosfatase acid, chlorophyll concentration, leaf area. ácido acético, ácido propiônico, germinação, α-amilase, fosfatase ácida, clorofila, área foliar. |
topic |
acetic acid, propionic acid, germination, α-amylase, fosfatase acid, chlorophyll concentration, leaf area. ácido acético, ácido propiônico, germinação, α-amilase, fosfatase ácida, clorofila, área foliar. |
description |
Vegetal residues in anaerobic decomposition in irrigated farmings of rice produce organic acids, such as, acetic, propionic, butiric, formic, vanilic, which affect the establishment of seedlings. Therefore the present work had for objective to analyze the physiological quality of seeds and bioquimical activity of rice BR IRGA-409 seedlings, treated with several concen- trations (zero; 1; 2; 4; 8 and 16 ml/L) of acetic and propionic acids. In order to performer this some assay were conducted such as: tests of vigor (first count, electrical conductivity, emergency speed index and emergency), chemical composition (starch, total soluble sugars and protein contents), determinations of the activity of α-amylase and fosfatase acid, and measurements of growth (chlorophyll concentration and leaf area). The regression analysis showed that the germination, emergency speed index, the emer- gency of seedlings and the electric conductivity were significantly affected with the increase in the concentrations of acid. Starch, total soluble sugars and protein contents were reduced on higher concentrations (≥8 ml/L) for both acids. The total activity of α-amylase was more enhanced by acetic acid than propionic acid, while the activity of phosfatase-acid was not modified. The chlorophyll contents and leaf area decreased with increment on concentrations of acetic and propionic acids. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-12-20 |
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 |
http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/256 |
url |
http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/256 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/256/222 |
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 |
Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural |
publisher.none.fl_str_mv |
Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural |
dc.source.none.fl_str_mv |
Pesquisa Agropecuária Gaúcha; Vol 13 No 1/2 (2007): PESQ. AGROP. GAÚCHA; 79-88 Pesquisa Agropecuária Gaúcha; v. 13 n. 1/2 (2007): PESQ. AGROP. GAÚCHA; 79-88 2595-7686 0104-9070 reponame:Pesquisa Agropecuária Gaúcha (Online) instname:Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul instacron:SEAPDR |
instname_str |
Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul |
instacron_str |
SEAPDR |
institution |
SEAPDR |
reponame_str |
Pesquisa Agropecuária Gaúcha (Online) |
collection |
Pesquisa Agropecuária Gaúcha (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Gaúcha (Online) - Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul |
repository.mail.fl_str_mv |
pag@agricultura.rs.gov.br|| |
_version_ |
1797068772195958784 |