HARVEST TIMES WITH CHEMICAL DESICCATION AND THE EFFECTS ON THE ENZYMATIC EXPRESSION AND PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Caatinga |
Texto Completo: | https://periodicos.ufersa.edu.br/caatinga/article/view/8815 |
Resumo: | This study aimed to evaluate the effect of chemical desiccants and harvest times on the enzymatic expression and physiological quality of soybean seeds. The experiment was carried out in a randomized block design with four replications, in a factorial scheme (4 × 3 + 1) with four desiccants (paraquat - 2 L ha-1, ammonium glufosinate - 2 L ha-1, diquat - 1.5 L ha-1, and saflufenacil - 40 g ha-1). These were applied at the phenological stage R7.1 (beginning of leaf yellowing) and at three harvest times (0, 14, and 28 days after the phenological stage R8). There was also a control treatment (no desiccant, harvested at R8). The physiological quality of soybean seeds and the enzymatic expressions of malate dehydrogenase, alcohol dehydrogenase, esterase, isocitrate lyase, and superoxide dismutase were evaluated in laboratory tests. Seeds harvested at the R8 + 14 stage led to the highest losses in seed quality. However, the 50 mm rainfall also affected seed deterioration. The desiccants diquat and paraquat provided the lowest and the highest damage to the seed physiological quality, respectively. The expression of the enzymes alcohol dehydrogenase, esterase, and isocitrate lyase were efficient and had an adequate correlation with the physiological quality. Malate dehydrogenase and superoxide dismutase had no satisfactory relation with the physiological tests performed with soybean seeds. |
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HARVEST TIMES WITH CHEMICAL DESICCATION AND THE EFFECTS ON THE ENZYMATIC EXPRESSION AND PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDSEPÓCAS DE COLHEITA COM DESSECAÇÃO QUÍMICA E SUAS RELAÇÕES COM A QUALIDADE FISIOLÓGICA E EXPRESSÃO ENZIMÁTICA EM SEMENTES DE SOJAAntioxidantes. Glycine max. Maturidade fisiológica. Processos de respiração.Antioxidants. Glycine max. Physiological maturation. Respiration processes.This study aimed to evaluate the effect of chemical desiccants and harvest times on the enzymatic expression and physiological quality of soybean seeds. The experiment was carried out in a randomized block design with four replications, in a factorial scheme (4 × 3 + 1) with four desiccants (paraquat - 2 L ha-1, ammonium glufosinate - 2 L ha-1, diquat - 1.5 L ha-1, and saflufenacil - 40 g ha-1). These were applied at the phenological stage R7.1 (beginning of leaf yellowing) and at three harvest times (0, 14, and 28 days after the phenological stage R8). There was also a control treatment (no desiccant, harvested at R8). The physiological quality of soybean seeds and the enzymatic expressions of malate dehydrogenase, alcohol dehydrogenase, esterase, isocitrate lyase, and superoxide dismutase were evaluated in laboratory tests. Seeds harvested at the R8 + 14 stage led to the highest losses in seed quality. However, the 50 mm rainfall also affected seed deterioration. The desiccants diquat and paraquat provided the lowest and the highest damage to the seed physiological quality, respectively. The expression of the enzymes alcohol dehydrogenase, esterase, and isocitrate lyase were efficient and had an adequate correlation with the physiological quality. Malate dehydrogenase and superoxide dismutase had no satisfactory relation with the physiological tests performed with soybean seeds. O objetivo no trabalho foi avaliar o efeito de dessecantes químicos e épocas de colheita sobre a qualidade fisiológica e expressão enzimática em sementes de soja. O delineamento experimental foi blocos casualizados, com quatro repetições, em esquema fatorial (4 × 3 + 1): quatro dessecantes (paraquat - 2 L ha-1, glufosinato de amônio – 2 L ha-1, diquat – 1,5 L ha-1, saflufenacil 40 g ha-1) aplicado no estádio fenológico R7.1 (início do amarelecimento das folhas), com três épocas de colheita (0; 14 e 28 dias após o estádio fenológico R8) mais o controle (ausência de dessecante e colhida em R8). Foi avaliada a qualidade fisiológica das sementes de soja por meio de testes em laboratório e a expressão enzimática das enzimas malato desidrogenase, álcool desidrogenase, esterase, isocitrato liase e para a superóxido dismutase. A colheita de sementes no estádio R8+14 promove as maiores perdas na qualidade das sementes, todavia, não só tempo de atraso afeta, mas a ocorrência de precipitações é decisiva, sendo que chuva de 50 mm, já proporciona deterioração das sementes de soja. Os dessecantes diquat e paraquat foram os que promoveram os menores e maiores danos à qualidade fisiológica das sementes, respectivamente. A expressão das enzimas álcool desidrogenase, esterase e isocitrato liase são eficientes no monitoramento e com adequada correlação com a qualidade fisiológica. A malato desidrogenase e superóxido dismutase apresentam baixa correlação com os testes fisiológicos realizados nas sementes de soja. Universidade Federal Rural do Semi-Árido2020-05-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/881510.1590/1983-21252020v33n209rcREVISTA CAATINGA; Vol. 33 No. 2 (2020); 361-370Revista Caatinga; v. 33 n. 2 (2020); 361-3701983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/8815/10205Copyright (c) 2020 Revista Caatingainfo:eu-repo/semantics/openAccessZuffo, Alan MarioAguilera, Jorge GonzálezCarvalho, Everson ReisTeodoro, Paulo Eduardo2023-07-21T17:25:50Zoai:ojs.periodicos.ufersa.edu.br:article/8815Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:43.050888Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true |
dc.title.none.fl_str_mv |
HARVEST TIMES WITH CHEMICAL DESICCATION AND THE EFFECTS ON THE ENZYMATIC EXPRESSION AND PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS EPÓCAS DE COLHEITA COM DESSECAÇÃO QUÍMICA E SUAS RELAÇÕES COM A QUALIDADE FISIOLÓGICA E EXPRESSÃO ENZIMÁTICA EM SEMENTES DE SOJA |
title |
HARVEST TIMES WITH CHEMICAL DESICCATION AND THE EFFECTS ON THE ENZYMATIC EXPRESSION AND PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS |
spellingShingle |
HARVEST TIMES WITH CHEMICAL DESICCATION AND THE EFFECTS ON THE ENZYMATIC EXPRESSION AND PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS Zuffo, Alan Mario Antioxidantes. Glycine max. Maturidade fisiológica. Processos de respiração. Antioxidants. Glycine max. Physiological maturation. Respiration processes. |
title_short |
HARVEST TIMES WITH CHEMICAL DESICCATION AND THE EFFECTS ON THE ENZYMATIC EXPRESSION AND PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS |
title_full |
HARVEST TIMES WITH CHEMICAL DESICCATION AND THE EFFECTS ON THE ENZYMATIC EXPRESSION AND PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS |
title_fullStr |
HARVEST TIMES WITH CHEMICAL DESICCATION AND THE EFFECTS ON THE ENZYMATIC EXPRESSION AND PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS |
title_full_unstemmed |
HARVEST TIMES WITH CHEMICAL DESICCATION AND THE EFFECTS ON THE ENZYMATIC EXPRESSION AND PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS |
title_sort |
HARVEST TIMES WITH CHEMICAL DESICCATION AND THE EFFECTS ON THE ENZYMATIC EXPRESSION AND PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS |
author |
Zuffo, Alan Mario |
author_facet |
Zuffo, Alan Mario Aguilera, Jorge González Carvalho, Everson Reis Teodoro, Paulo Eduardo |
author_role |
author |
author2 |
Aguilera, Jorge González Carvalho, Everson Reis Teodoro, Paulo Eduardo |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Zuffo, Alan Mario Aguilera, Jorge González Carvalho, Everson Reis Teodoro, Paulo Eduardo |
dc.subject.por.fl_str_mv |
Antioxidantes. Glycine max. Maturidade fisiológica. Processos de respiração. Antioxidants. Glycine max. Physiological maturation. Respiration processes. |
topic |
Antioxidantes. Glycine max. Maturidade fisiológica. Processos de respiração. Antioxidants. Glycine max. Physiological maturation. Respiration processes. |
description |
This study aimed to evaluate the effect of chemical desiccants and harvest times on the enzymatic expression and physiological quality of soybean seeds. The experiment was carried out in a randomized block design with four replications, in a factorial scheme (4 × 3 + 1) with four desiccants (paraquat - 2 L ha-1, ammonium glufosinate - 2 L ha-1, diquat - 1.5 L ha-1, and saflufenacil - 40 g ha-1). These were applied at the phenological stage R7.1 (beginning of leaf yellowing) and at three harvest times (0, 14, and 28 days after the phenological stage R8). There was also a control treatment (no desiccant, harvested at R8). The physiological quality of soybean seeds and the enzymatic expressions of malate dehydrogenase, alcohol dehydrogenase, esterase, isocitrate lyase, and superoxide dismutase were evaluated in laboratory tests. Seeds harvested at the R8 + 14 stage led to the highest losses in seed quality. However, the 50 mm rainfall also affected seed deterioration. The desiccants diquat and paraquat provided the lowest and the highest damage to the seed physiological quality, respectively. The expression of the enzymes alcohol dehydrogenase, esterase, and isocitrate lyase were efficient and had an adequate correlation with the physiological quality. Malate dehydrogenase and superoxide dismutase had no satisfactory relation with the physiological tests performed with soybean seeds. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-05-22 |
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://periodicos.ufersa.edu.br/caatinga/article/view/8815 10.1590/1983-21252020v33n209rc |
url |
https://periodicos.ufersa.edu.br/caatinga/article/view/8815 |
identifier_str_mv |
10.1590/1983-21252020v33n209rc |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/8815/10205 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Revista Caatinga info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Revista Caatinga |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
dc.source.none.fl_str_mv |
REVISTA CAATINGA; Vol. 33 No. 2 (2020); 361-370 Revista Caatinga; v. 33 n. 2 (2020); 361-370 1983-2125 0100-316X reponame:Revista Caatinga instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
instname_str |
Universidade Federal Rural do Semi-Árido (UFERSA) |
instacron_str |
UFERSA |
institution |
UFERSA |
reponame_str |
Revista Caatinga |
collection |
Revista Caatinga |
repository.name.fl_str_mv |
Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA) |
repository.mail.fl_str_mv |
patricio@ufersa.edu.br|| caatinga@ufersa.edu.br |
_version_ |
1797674028238897152 |