Thermotherapy on physiological and health quality of stored Jatropha seeds
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/12572 |
Resumo: | Among the many species that can be used to obtain vegetable oil for energy, Jatropha is considered one of the best options. Therefore, it is necessary to have seeds with good physiological and health quality in order to have a good establishment of plants in the field. This study aimed to evaluate the efficiency of heat treatment to the control of seed-borne pathogens in stored Jatropha seeds. The experimental design was completely randomized with a factorial 5x4 (five periods of storage x four treatment temperatures). The seeds of Jatropha were collected in Dourados - MS, and were subjected to processing and sun drying, and then stored in a dry chamber in glass flaskswith a screw cap and a capacity of 500 mL, for periods of 0, 90, 180, 270, and 360 days. After each storage period, seeds were subjected to thermotherapy by immersion in hot water at temperatures of 45°C, 50°C, and 55°C for 15 minutes; the control treatment was immersed in water at room temperature (25±2°C) for 15 minutes. The parameters evaluated were: moisture content, germinations, germination speed index, electrical conductivity and health. Heat treatment at temperatures of 45°C, 50°C and 55°C don’t affect germination and the cell membrane integrity of the seed. After 180 days the use of thermotherapy contributed to the conservation of seed vigor. The fungus Penicillium sp. and Acremonium sp. are eliminated by thermotherapy at temperatures of 45°C, 50°C and 55°C, and Aspergillus sp. is controlled at a temperature of 55°C in periods of storage of 180 and 270 days. |
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Thermotherapy on physiological and health quality of stored Jatropha seedsTermoterapia e qualidade fisiológica e sanitária de sementes armazenadas de pinhão-mansoJatropha curcas LGerminationHeat treatmentHealth.Jatropha curcas LGerminaçãoTratamento térmicoSanidade.FitotecniaAmong the many species that can be used to obtain vegetable oil for energy, Jatropha is considered one of the best options. Therefore, it is necessary to have seeds with good physiological and health quality in order to have a good establishment of plants in the field. This study aimed to evaluate the efficiency of heat treatment to the control of seed-borne pathogens in stored Jatropha seeds. The experimental design was completely randomized with a factorial 5x4 (five periods of storage x four treatment temperatures). The seeds of Jatropha were collected in Dourados - MS, and were subjected to processing and sun drying, and then stored in a dry chamber in glass flaskswith a screw cap and a capacity of 500 mL, for periods of 0, 90, 180, 270, and 360 days. After each storage period, seeds were subjected to thermotherapy by immersion in hot water at temperatures of 45°C, 50°C, and 55°C for 15 minutes; the control treatment was immersed in water at room temperature (25±2°C) for 15 minutes. The parameters evaluated were: moisture content, germinations, germination speed index, electrical conductivity and health. Heat treatment at temperatures of 45°C, 50°C and 55°C don’t affect germination and the cell membrane integrity of the seed. After 180 days the use of thermotherapy contributed to the conservation of seed vigor. The fungus Penicillium sp. and Acremonium sp. are eliminated by thermotherapy at temperatures of 45°C, 50°C and 55°C, and Aspergillus sp. is controlled at a temperature of 55°C in periods of storage of 180 and 270 days.Dentre as várias espécies que podem ser utilizadas na obtenção de óleos vegetais para fins energéticos, o pinhão-manso tem sido considerado uma das melhores opções. Para isso, se faz necessário ter sementes de boa qualidade fisiológica e sanitária para um adequado estabelecimento das plantas no campo. O presente trabalho teve por objetivo avaliar a eficiência do tratamento térmico no controle de patógenos, de campo e de armazenamento, em sementes de pinhão-manso armazenadas. O delineamento experimental foi inteiramente casualizado em esquema fatorial 5x4 (cinco períodos de armazenamento x quatro temperaturas de tratamento). As sementes de pinhão-manso, coletadas no município de Dourados - MS, foram submetidas ao beneficiamento e secagem ao sol, em seguida foram armazenadas em câmara seca em embalagem de vidro com tampa de rosca e capacidade de 500 ml, pelos períodos de 0, 90, 180, 270 e 360 dias. Após cada período de armazenamento, as sementes foram submetidas à termoterapia por imersão em água nas temperaturas de 45°C, 50°C e 55°C por 15 minutos; a testemunha foi imersa em água em temperatura ambiente (25±2°C) por 15 minutos. Os parâmetros avaliados foram: grau de umidade, germinação, índice de velocidade de germinação, condutividade elétrica e sanidade. O tratamento térmico nas temperaturas de 45°C, 50°C e 55°C não foi prejudicial para a germinação e integridade das membranas celulares das sementes. Após 180 dias de armazenamento, a utilização da termoterapia contribui para a conservação do vigor das sementes. Os fungos Penicillium sp. e Acremonium sp. são controlados pela termoterapia nas temperaturas de 45°C, 50°C e 55°C; e Aspergillus sp. é controlado pela temperatura de 55°C nos períodos de armazenamento de 180 e 270 dias. UEL2015-02-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa empíricaapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/1257210.5433/1679-0359.2015v36n1p47Semina: Ciências Agrárias; Vol. 36 No. 1 (2015); 47-56Semina: Ciências Agrárias; v. 36 n. 1 (2015); 47-561679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/12572/pdf_568Copyright (c) 2015 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessSchneider, Cristina FernandaGusatto, Fabiane CristinaMalavasi, Marlene de MatosStangarlin, José RenatoMalavasi, Ubirajara Contro2023-01-13T15:04:44Zoai:ojs.pkp.sfu.ca:article/12572Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2023-01-13T15:04:44Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Thermotherapy on physiological and health quality of stored Jatropha seeds Termoterapia e qualidade fisiológica e sanitária de sementes armazenadas de pinhão-manso |
title |
Thermotherapy on physiological and health quality of stored Jatropha seeds |
spellingShingle |
Thermotherapy on physiological and health quality of stored Jatropha seeds Schneider, Cristina Fernanda Jatropha curcas L Germination Heat treatment Health. Jatropha curcas L Germinação Tratamento térmico Sanidade. Fitotecnia |
title_short |
Thermotherapy on physiological and health quality of stored Jatropha seeds |
title_full |
Thermotherapy on physiological and health quality of stored Jatropha seeds |
title_fullStr |
Thermotherapy on physiological and health quality of stored Jatropha seeds |
title_full_unstemmed |
Thermotherapy on physiological and health quality of stored Jatropha seeds |
title_sort |
Thermotherapy on physiological and health quality of stored Jatropha seeds |
author |
Schneider, Cristina Fernanda |
author_facet |
Schneider, Cristina Fernanda Gusatto, Fabiane Cristina Malavasi, Marlene de Matos Stangarlin, José Renato Malavasi, Ubirajara Contro |
author_role |
author |
author2 |
Gusatto, Fabiane Cristina Malavasi, Marlene de Matos Stangarlin, José Renato Malavasi, Ubirajara Contro |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Schneider, Cristina Fernanda Gusatto, Fabiane Cristina Malavasi, Marlene de Matos Stangarlin, José Renato Malavasi, Ubirajara Contro |
dc.subject.por.fl_str_mv |
Jatropha curcas L Germination Heat treatment Health. Jatropha curcas L Germinação Tratamento térmico Sanidade. Fitotecnia |
topic |
Jatropha curcas L Germination Heat treatment Health. Jatropha curcas L Germinação Tratamento térmico Sanidade. Fitotecnia |
description |
Among the many species that can be used to obtain vegetable oil for energy, Jatropha is considered one of the best options. Therefore, it is necessary to have seeds with good physiological and health quality in order to have a good establishment of plants in the field. This study aimed to evaluate the efficiency of heat treatment to the control of seed-borne pathogens in stored Jatropha seeds. The experimental design was completely randomized with a factorial 5x4 (five periods of storage x four treatment temperatures). The seeds of Jatropha were collected in Dourados - MS, and were subjected to processing and sun drying, and then stored in a dry chamber in glass flaskswith a screw cap and a capacity of 500 mL, for periods of 0, 90, 180, 270, and 360 days. After each storage period, seeds were subjected to thermotherapy by immersion in hot water at temperatures of 45°C, 50°C, and 55°C for 15 minutes; the control treatment was immersed in water at room temperature (25±2°C) for 15 minutes. The parameters evaluated were: moisture content, germinations, germination speed index, electrical conductivity and health. Heat treatment at temperatures of 45°C, 50°C and 55°C don’t affect germination and the cell membrane integrity of the seed. After 180 days the use of thermotherapy contributed to the conservation of seed vigor. The fungus Penicillium sp. and Acremonium sp. are eliminated by thermotherapy at temperatures of 45°C, 50°C and 55°C, and Aspergillus sp. is controlled at a temperature of 55°C in periods of storage of 180 and 270 days. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-02-26 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa empírica |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/12572 10.5433/1679-0359.2015v36n1p47 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/12572 |
identifier_str_mv |
10.5433/1679-0359.2015v36n1p47 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/12572/pdf_568 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2015 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2015 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. 36 No. 1 (2015); 47-56 Semina: Ciências Agrárias; v. 36 n. 1 (2015); 47-56 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_ |
1799306067746750464 |