Use of different conditioning agents and quality evaluation of two lots of annatto
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/50094 |
Resumo: | Due to the low germination of annatto seeds (Bixa orellana L.), it is necessary to test different techniques that facilitate and enable its production, such as the use of the physiological conditioning method. Here, we aimed to characterize the germination of two annatto seed lots under physiological conditioning. For this, two lots of seeds (newly-collected and stored) were submitted to physiological conditioning using an aerated solution of 1) deionized water; 2) cathodic water; 3) potassium nitrate 0.3%; 4) sodium nitroprusside 100 µM; for 24h and 48h, and an additional treatment (control) without conditioning. After the germination test, ungerminated seeds were submitted to a tetrazolium test at 0.075% at 30 °C, in the dark for 24 h. We used a completely randomized factorial design (4 x 2 + 1) with four replications of 25 seeds per treatment. Despite the low germination already mentioned in the literature for this species, we obtained high germination without any type of dormancy-break pretreatment, even in lots stored for over 10 years with a water content of 8%, characterizing this species as non-dormant. The germination and viability of Bixa orellana were influenced by seed water content decrease. The conditioning agents were not efficient to increase annatto seed germination. Further studies are needed to classify these seeds according to their storability. |
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Use of different conditioning agents and quality evaluation of two lots of annattoUso de diferentes condicionantes e avaliação da qualidade de dois lotes de sementes urucum (Bixa orellana)Cathodic waterPotassium nitrateSodium nitroprussideForest seedÁgua catódicaNitrato de potássioNitroprussiato de sódioSemente florestalDue to the low germination of annatto seeds (Bixa orellana L.), it is necessary to test different techniques that facilitate and enable its production, such as the use of the physiological conditioning method. Here, we aimed to characterize the germination of two annatto seed lots under physiological conditioning. For this, two lots of seeds (newly-collected and stored) were submitted to physiological conditioning using an aerated solution of 1) deionized water; 2) cathodic water; 3) potassium nitrate 0.3%; 4) sodium nitroprusside 100 µM; for 24h and 48h, and an additional treatment (control) without conditioning. After the germination test, ungerminated seeds were submitted to a tetrazolium test at 0.075% at 30 °C, in the dark for 24 h. We used a completely randomized factorial design (4 x 2 + 1) with four replications of 25 seeds per treatment. Despite the low germination already mentioned in the literature for this species, we obtained high germination without any type of dormancy-break pretreatment, even in lots stored for over 10 years with a water content of 8%, characterizing this species as non-dormant. The germination and viability of Bixa orellana were influenced by seed water content decrease. The conditioning agents were not efficient to increase annatto seed germination. Further studies are needed to classify these seeds according to their storability.Devido à baixa germinação de sementes de Bixa orellana L., há a necessidade de se testar diferentes técnicas que viabilizem sua reprodução, como o condicionamento fisiológico. O objetivo do presente trabalho foi caracterizar a germinação de dois lotes de sementes de urucum sob efeito do condicionamento fisiológico. Para isso, sementes de dois lotes (recém-colhido e armazenado) foram submetidas ao condicionamento fisiológico em solução aerada de: 1) água deionizada; 2) água catódica; 3) nitrato de potássio a 0,3%; 4) nitroprussiato de sódio a 100 µM; por 24 e 48h, e um tratamento adicional (controle) sem condicionamento. Após o teste de germinação, as sementes que não germinaram foram submetidas ao teste de tetrazólio a 0,075% a 30 °C, no escuro, durante 24 h. O delineamento experimental utilizado foi o inteiramente casualizado, em esquema fatorial (4 x 2 + 1) com quatro repetições de 25 sementes por tratamento. Apesar da baixa germinação já relatada para a espécie, foi possível obter germinação sem nenhum tipo de pré-tratamento como quebra de dormência, mesmo em lote armazenado por 10 anos e com teor de água de 8%. Os agentes condicionantes não foram eficientes no aumento da germinação de sementes de urucum. São necessários novos trabalhos para classificação da espécie quanto ao seu armazenamento.Universidade Federal de Santa Maria2022-06-01T22:02:38Z2022-06-01T22:02:38Z2021-06info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfFERNANDES, A. C. et al. Use of different conditioning agents and quality evaluation of two lots of annatto (Bixa orellana) seeds. Ciência Florestal, Santa Maria, v. 31, n. 2, p. 808-829, Apr./June 2021. DOI: https://doi.org/10.5902/1980509844156.http://repositorio.ufla.br/jspui/handle/1/50094Ciência Florestalreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessFernandes, Alana ChocorosquiFaria, Julio Cezar TannureFaria, José Marcio RochaPires, Raquel Maria de OliveiraCarvalho, Everson ReisSantos, Heloisa Oliveira doseng2023-05-26T18:58:20Zoai:localhost:1/50094Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-26T18:58:20Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Use of different conditioning agents and quality evaluation of two lots of annatto Uso de diferentes condicionantes e avaliação da qualidade de dois lotes de sementes urucum (Bixa orellana) |
title |
Use of different conditioning agents and quality evaluation of two lots of annatto |
spellingShingle |
Use of different conditioning agents and quality evaluation of two lots of annatto Fernandes, Alana Chocorosqui Cathodic water Potassium nitrate Sodium nitroprusside Forest seed Água catódica Nitrato de potássio Nitroprussiato de sódio Semente florestal |
title_short |
Use of different conditioning agents and quality evaluation of two lots of annatto |
title_full |
Use of different conditioning agents and quality evaluation of two lots of annatto |
title_fullStr |
Use of different conditioning agents and quality evaluation of two lots of annatto |
title_full_unstemmed |
Use of different conditioning agents and quality evaluation of two lots of annatto |
title_sort |
Use of different conditioning agents and quality evaluation of two lots of annatto |
author |
Fernandes, Alana Chocorosqui |
author_facet |
Fernandes, Alana Chocorosqui Faria, Julio Cezar Tannure Faria, José Marcio Rocha Pires, Raquel Maria de Oliveira Carvalho, Everson Reis Santos, Heloisa Oliveira dos |
author_role |
author |
author2 |
Faria, Julio Cezar Tannure Faria, José Marcio Rocha Pires, Raquel Maria de Oliveira Carvalho, Everson Reis Santos, Heloisa Oliveira dos |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Fernandes, Alana Chocorosqui Faria, Julio Cezar Tannure Faria, José Marcio Rocha Pires, Raquel Maria de Oliveira Carvalho, Everson Reis Santos, Heloisa Oliveira dos |
dc.subject.por.fl_str_mv |
Cathodic water Potassium nitrate Sodium nitroprusside Forest seed Água catódica Nitrato de potássio Nitroprussiato de sódio Semente florestal |
topic |
Cathodic water Potassium nitrate Sodium nitroprusside Forest seed Água catódica Nitrato de potássio Nitroprussiato de sódio Semente florestal |
description |
Due to the low germination of annatto seeds (Bixa orellana L.), it is necessary to test different techniques that facilitate and enable its production, such as the use of the physiological conditioning method. Here, we aimed to characterize the germination of two annatto seed lots under physiological conditioning. For this, two lots of seeds (newly-collected and stored) were submitted to physiological conditioning using an aerated solution of 1) deionized water; 2) cathodic water; 3) potassium nitrate 0.3%; 4) sodium nitroprusside 100 µM; for 24h and 48h, and an additional treatment (control) without conditioning. After the germination test, ungerminated seeds were submitted to a tetrazolium test at 0.075% at 30 °C, in the dark for 24 h. We used a completely randomized factorial design (4 x 2 + 1) with four replications of 25 seeds per treatment. Despite the low germination already mentioned in the literature for this species, we obtained high germination without any type of dormancy-break pretreatment, even in lots stored for over 10 years with a water content of 8%, characterizing this species as non-dormant. The germination and viability of Bixa orellana were influenced by seed water content decrease. The conditioning agents were not efficient to increase annatto seed germination. Further studies are needed to classify these seeds according to their storability. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06 2022-06-01T22:02:38Z 2022-06-01T22:02:38Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
FERNANDES, A. C. et al. Use of different conditioning agents and quality evaluation of two lots of annatto (Bixa orellana) seeds. Ciência Florestal, Santa Maria, v. 31, n. 2, p. 808-829, Apr./June 2021. DOI: https://doi.org/10.5902/1980509844156. http://repositorio.ufla.br/jspui/handle/1/50094 |
identifier_str_mv |
FERNANDES, A. C. et al. Use of different conditioning agents and quality evaluation of two lots of annatto (Bixa orellana) seeds. Ciência Florestal, Santa Maria, v. 31, n. 2, p. 808-829, Apr./June 2021. DOI: https://doi.org/10.5902/1980509844156. |
url |
http://repositorio.ufla.br/jspui/handle/1/50094 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by-nc/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
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 |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Florestal reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
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1815439163581792256 |