Efeito da luz, temperatura e estresse hídrico no potencial fisiológico de sementes de anis, funcho e endro
Ano de defesa: | 2005 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , |
Tipo de documento: | Dissertação |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Santa Maria
|
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Agronomia
|
Departamento: |
Agronomia
|
País: |
BR
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.ufsm.br/handle/1/5011 |
Resumo: | The objective of that work was to evaluate the effects of light, of temperature and of hydric stress in the germination and vitality of seeds of anise, fennel and dill. The experiment was led in two stages. In stage I, the seeds were placed to germinate to constant temperatures of 20, 25, 30 ºC and alternate temperatures of 20-30 ºC in the presence and absence of light. The assessed parameters were: germination percentage, first count, index of germination speed, length and dry mass of seedlings. In stage II, the seeds were placed in soaked substratum in polyethylene glicol (PEG 6000) in the osmotic potentials equivalent to zero; -0,05; -0,10; -0,15; - 0,20; -0,25; -0,30 MPa. Germination percentage, first count and index of germination speed were evaluated. In stage I, the procedure employed was reached by chance, with the data submitted to variance analysis and to the Tukey test to a 5% of probability, and in stage II, analysis of polinomial regression was used. According to the results, it is possible to conclude that germination of seeds anise, fennel and dill happen in presence and absence light, however the manifestation of the vigor is favored by light. The germination of dill seeds is larger in light presence. The seeds anise, fennel and dill, without dormancy, germinate better in the constant temperatures of 20 and 25 °C and temperature of 30 °C is not adapted for germination test in these species. The dill seeds are more tolerant to hydric stress than the anise and fennel seeds. The decrease of the osmotic potentials reduces the germination and vigor of seeds anise, fennel and dill, being the most affected vigor than germination. The germination is reduced drastically, starting from -0,1 MPa for fennel and -0,2 MPa for dill, when there is decrease of osmotic potentials with polyethylene glicol 6000. |
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2017-05-222017-05-222005-04-08STEFANELLO, Raquel. The effect of light, temperature and hydric stress in the physiologic potentiality of seeds of anise, fennel and dill. 2005. 57 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Santa Maria, Santa Maria, 2005.http://repositorio.ufsm.br/handle/1/5011The objective of that work was to evaluate the effects of light, of temperature and of hydric stress in the germination and vitality of seeds of anise, fennel and dill. The experiment was led in two stages. In stage I, the seeds were placed to germinate to constant temperatures of 20, 25, 30 ºC and alternate temperatures of 20-30 ºC in the presence and absence of light. The assessed parameters were: germination percentage, first count, index of germination speed, length and dry mass of seedlings. In stage II, the seeds were placed in soaked substratum in polyethylene glicol (PEG 6000) in the osmotic potentials equivalent to zero; -0,05; -0,10; -0,15; - 0,20; -0,25; -0,30 MPa. Germination percentage, first count and index of germination speed were evaluated. In stage I, the procedure employed was reached by chance, with the data submitted to variance analysis and to the Tukey test to a 5% of probability, and in stage II, analysis of polinomial regression was used. According to the results, it is possible to conclude that germination of seeds anise, fennel and dill happen in presence and absence light, however the manifestation of the vigor is favored by light. The germination of dill seeds is larger in light presence. The seeds anise, fennel and dill, without dormancy, germinate better in the constant temperatures of 20 and 25 °C and temperature of 30 °C is not adapted for germination test in these species. The dill seeds are more tolerant to hydric stress than the anise and fennel seeds. The decrease of the osmotic potentials reduces the germination and vigor of seeds anise, fennel and dill, being the most affected vigor than germination. The germination is reduced drastically, starting from -0,1 MPa for fennel and -0,2 MPa for dill, when there is decrease of osmotic potentials with polyethylene glicol 6000.O objetivo desse trabalho foi avaliar os efeitos da luz, da temperatura e do estresse hídrico na germinação e no vigor de sementes de anis, funcho e endro. O experimento foi conduzido em duas etapas. Na etapa I, as sementes foram colocadas para germinar nas temperaturas constantes de 20, 25, 30 ºC e alternada de 20-30 ºC na presença e ausência de luz. Os parâmetros avaliados foram: percentagem de germinação, primeira contagem, índice de velocidade de germinação, comprimento e massa seca das plântulas. Na etapa II, as sementes foram colocadas em substrato embebido em solução de polietileno glicol (PEG 6000) nos potenciais osmóticos correspondentes a zero; -0,05; -0,10; -0,15; -0,20; -0,25; -0,30 MPa. Avaliou-se a percentagem de germinação, primeira contagem e índice de velocidade de germinação. O delineamento utilizado foi o inteiramente casualizado com os dados submetidos à análise de variância e teste de Tukey a 5% de probabilidade, na etapa I e análise de regressão polinomial, na etapa II. Conforme os resultados pode-se concluir que a germinação das sementes de anis, funcho e endro ocorre tanto na presença quanto na ausência de luz, porém a manifestação do vigor é favorecida pela luz. A germinação das sementes de endro é maior na presença de luz. As sementes de anis, funcho e endro, sem dormência, germinam melhor nas temperaturas constantes de 20 e 25 °C e a temperatura de 30 °C não é adequada para o teste de germinação nestas espécies. As sementes de endro são mais tolerantes ao estresse hídrico que as sementes de anis e funcho. A diminuição dos potenciais osmóticos reduz a germinação e o vigor das sementes de anis, funcho e endro, sendo o vigor mais afetado que a germinação. A germinação é reduzida drasticamente, a partir de -0,1 MPa para funcho e -0,2 MPa para endro, quando há diminuição dos potenciais osmóticos com polietileno glicol 6000.application/pdfporUniversidade Federal de Santa MariaPrograma de Pós-Graduação em AgronomiaUFSMBRAgronomiaPimpinella anisumFoeniculum vulgareAnethum graveolensGerminaçãoEstresse hídricoImpinella anisumFoeniculum vulgareAnethum graveolensGerminationHydric stressCNPQ::CIENCIAS AGRARIAS::AGRONOMIAEfeito da luz, temperatura e estresse hídrico no potencial fisiológico de sementes de anis, funcho e endroThe effect of light, temperature and hydric stress in the physiologic potentiality of seeds of anise, fennel and dillinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisGarcia, Danton Camachohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4702954P8Menezes, Nilson Lemos dehttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4788277Y1Roversi, Teresinhahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4723592A4http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4771756Z3Stefanello, Raquel5001000000094005005003005008fe1d006-0ca5-4011-9f61-b6ac19c5f4475e5d9a44-e3a2-4e93-9c86-e1294b7fb761c901f62d-8bb9-4dd7-968a-1bbcb67a85f8a729aa07-4bbf-4df8-a059-d08fd0bdeacainfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALRAQUEL STEFANELLO.pdfapplication/pdf145501http://repositorio.ufsm.br/bitstream/1/5011/1/RAQUEL%20STEFANELLO.pdf77e82fb6106736cc1713a4d1ab0fe1b2MD51TEXTRAQUEL STEFANELLO.pdf.txtRAQUEL STEFANELLO.pdf.txtExtracted texttext/plain82635http://repositorio.ufsm.br/bitstream/1/5011/2/RAQUEL%20STEFANELLO.pdf.txtb4f68c8ae4870f22fb7800163b95cf6fMD52THUMBNAILRAQUEL STEFANELLO.pdf.jpgRAQUEL STEFANELLO.pdf.jpgIM Thumbnailimage/jpeg4257http://repositorio.ufsm.br/bitstream/1/5011/3/RAQUEL%20STEFANELLO.pdf.jpg2f1714369ba5350ae9e172fb1f7a0b32MD531/50112022-05-10 08:45:18.573oai:repositorio.ufsm.br:1/5011Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2022-05-10T11:45:18Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Efeito da luz, temperatura e estresse hídrico no potencial fisiológico de sementes de anis, funcho e endro |
dc.title.alternative.eng.fl_str_mv |
The effect of light, temperature and hydric stress in the physiologic potentiality of seeds of anise, fennel and dill |
title |
Efeito da luz, temperatura e estresse hídrico no potencial fisiológico de sementes de anis, funcho e endro |
spellingShingle |
Efeito da luz, temperatura e estresse hídrico no potencial fisiológico de sementes de anis, funcho e endro Stefanello, Raquel Pimpinella anisum Foeniculum vulgare Anethum graveolens Germinação Estresse hídrico Impinella anisum Foeniculum vulgare Anethum graveolens Germination Hydric stress CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
title_short |
Efeito da luz, temperatura e estresse hídrico no potencial fisiológico de sementes de anis, funcho e endro |
title_full |
Efeito da luz, temperatura e estresse hídrico no potencial fisiológico de sementes de anis, funcho e endro |
title_fullStr |
Efeito da luz, temperatura e estresse hídrico no potencial fisiológico de sementes de anis, funcho e endro |
title_full_unstemmed |
Efeito da luz, temperatura e estresse hídrico no potencial fisiológico de sementes de anis, funcho e endro |
title_sort |
Efeito da luz, temperatura e estresse hídrico no potencial fisiológico de sementes de anis, funcho e endro |
author |
Stefanello, Raquel |
author_facet |
Stefanello, Raquel |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Garcia, Danton Camacho |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4702954P8 |
dc.contributor.referee1.fl_str_mv |
Menezes, Nilson Lemos de |
dc.contributor.referee1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4788277Y1 |
dc.contributor.referee2.fl_str_mv |
Roversi, Teresinha |
dc.contributor.referee2Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4723592A4 |
dc.contributor.authorLattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4771756Z3 |
dc.contributor.author.fl_str_mv |
Stefanello, Raquel |
contributor_str_mv |
Garcia, Danton Camacho Menezes, Nilson Lemos de Roversi, Teresinha |
dc.subject.por.fl_str_mv |
Pimpinella anisum Foeniculum vulgare Anethum graveolens Germinação Estresse hídrico |
topic |
Pimpinella anisum Foeniculum vulgare Anethum graveolens Germinação Estresse hídrico Impinella anisum Foeniculum vulgare Anethum graveolens Germination Hydric stress CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
dc.subject.eng.fl_str_mv |
Impinella anisum Foeniculum vulgare Anethum graveolens Germination Hydric stress |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
description |
The objective of that work was to evaluate the effects of light, of temperature and of hydric stress in the germination and vitality of seeds of anise, fennel and dill. The experiment was led in two stages. In stage I, the seeds were placed to germinate to constant temperatures of 20, 25, 30 ºC and alternate temperatures of 20-30 ºC in the presence and absence of light. The assessed parameters were: germination percentage, first count, index of germination speed, length and dry mass of seedlings. In stage II, the seeds were placed in soaked substratum in polyethylene glicol (PEG 6000) in the osmotic potentials equivalent to zero; -0,05; -0,10; -0,15; - 0,20; -0,25; -0,30 MPa. Germination percentage, first count and index of germination speed were evaluated. In stage I, the procedure employed was reached by chance, with the data submitted to variance analysis and to the Tukey test to a 5% of probability, and in stage II, analysis of polinomial regression was used. According to the results, it is possible to conclude that germination of seeds anise, fennel and dill happen in presence and absence light, however the manifestation of the vigor is favored by light. The germination of dill seeds is larger in light presence. The seeds anise, fennel and dill, without dormancy, germinate better in the constant temperatures of 20 and 25 °C and temperature of 30 °C is not adapted for germination test in these species. The dill seeds are more tolerant to hydric stress than the anise and fennel seeds. The decrease of the osmotic potentials reduces the germination and vigor of seeds anise, fennel and dill, being the most affected vigor than germination. The germination is reduced drastically, starting from -0,1 MPa for fennel and -0,2 MPa for dill, when there is decrease of osmotic potentials with polyethylene glicol 6000. |
publishDate |
2005 |
dc.date.issued.fl_str_mv |
2005-04-08 |
dc.date.accessioned.fl_str_mv |
2017-05-22 |
dc.date.available.fl_str_mv |
2017-05-22 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
STEFANELLO, Raquel. The effect of light, temperature and hydric stress in the physiologic potentiality of seeds of anise, fennel and dill. 2005. 57 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Santa Maria, Santa Maria, 2005. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/5011 |
identifier_str_mv |
STEFANELLO, Raquel. The effect of light, temperature and hydric stress in the physiologic potentiality of seeds of anise, fennel and dill. 2005. 57 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Santa Maria, Santa Maria, 2005. |
url |
http://repositorio.ufsm.br/handle/1/5011 |
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por |
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Agronomia |
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Universidade Federal de Santa Maria |
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