Potencial alelopático de diferentes espécies de plantas sobre a qualidade fisiológica de sementes de arroz e aquênios de alface e crescimento de plântulas de arroz e alface
Ano de defesa: | 2006 |
---|---|
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 Pelotas
|
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Fisiologia Vegetal
|
Departamento: |
Biologia
|
País: |
BR
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.ufpel.edu.br/handle/ri/2017 |
Resumo: | The objective of this work was to analyze and to describe the influence of aqueous extracts of Echinochloa cruzgalli L., Cyperus sp. and Sagittaria montevidensis about the physiological quality of the seeds and growth of seedlings of rice Atalanta . The extracts were acquired from species collected on rice planting areas and in the campus of UFPel. The essays were accomplished at laboratory with different concentrations (zero, 25, 50, 75 and 100%) of aqueous extracts of leaves (vegetal fresh material, w/v). The rice Atalanta seeds were put to soak for 60 minutes in the different aqueous extracts and concentrations, and then conducted to germination, first counting of germination, germination speed rate, aerial part and root length, and electric conductivity tests. It could be observed that the extracts did not have influence about the germination and first germination counting, but there was influence in the germination speed rate and in the leaching of reserve compounds. It could be concluded the occurrence of negative differential plant toxicity. The objective of this work was to analyze and to describe the influence of aqueous extracts of Schinus terebinthifolius Raadi over achenes and the growth of seedlings of lettuce Branca de Boston . The extract was acquired from species collected in the campus of UFPel. The essays were accomplished at laboratory, and the concentrations were (zero, 50 and 100%) of aqueous extracts of leaves (vegetal fresh material, w/v). Achenes of lettuce Branca de Boston were put to soak for 60 minutes in the different extracts concentrations and than conducted to the tests: germination, first counting of germination, germination speed rate, length of the seedlings, fresh and dry mass and electrical conductivity. It could be concluded that the extract exerts negative fitotoxic effect over the achenes and over the growth of lettuce seedlings, in both concentrations used, being more expressive according to the increase of the extract concentration. |
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2014-08-20T13:59:09Z2008-09-252014-08-20T13:59:09Z2006-11-17COMIOTTO, Andressa. Allelopathic potential of different species of plants on the physiologic quality of rice seeds and lettuce achenes and growth of seedlings of rice and lettuce. 2006. 42 f. Dissertação (Mestrado em Biologia) - Universidade Federal de Pelotas, Pelotas, 2006.http://repositorio.ufpel.edu.br/handle/ri/2017The objective of this work was to analyze and to describe the influence of aqueous extracts of Echinochloa cruzgalli L., Cyperus sp. and Sagittaria montevidensis about the physiological quality of the seeds and growth of seedlings of rice Atalanta . The extracts were acquired from species collected on rice planting areas and in the campus of UFPel. The essays were accomplished at laboratory with different concentrations (zero, 25, 50, 75 and 100%) of aqueous extracts of leaves (vegetal fresh material, w/v). The rice Atalanta seeds were put to soak for 60 minutes in the different aqueous extracts and concentrations, and then conducted to germination, first counting of germination, germination speed rate, aerial part and root length, and electric conductivity tests. It could be observed that the extracts did not have influence about the germination and first germination counting, but there was influence in the germination speed rate and in the leaching of reserve compounds. It could be concluded the occurrence of negative differential plant toxicity. The objective of this work was to analyze and to describe the influence of aqueous extracts of Schinus terebinthifolius Raadi over achenes and the growth of seedlings of lettuce Branca de Boston . The extract was acquired from species collected in the campus of UFPel. The essays were accomplished at laboratory, and the concentrations were (zero, 50 and 100%) of aqueous extracts of leaves (vegetal fresh material, w/v). Achenes of lettuce Branca de Boston were put to soak for 60 minutes in the different extracts concentrations and than conducted to the tests: germination, first counting of germination, germination speed rate, length of the seedlings, fresh and dry mass and electrical conductivity. It could be concluded that the extract exerts negative fitotoxic effect over the achenes and over the growth of lettuce seedlings, in both concentrations used, being more expressive according to the increase of the extract concentration.v O objetivo deste trabalho foi analisar e descrever a influência de extratos aquosos de Echinochloa cruzgalli L., Cyperus sp. e Sagittaria montevidensis sobre a qualidade fisiológica das sementes e crescimento de plântulas de arroz cv. Atalanta. Os extratos foram obtidos a partir de espécies coletadas em área de plantio de arroz e no campus da UFPel. Os ensaios foram realizados em laboratório com diferentes concentrações (zero, 25, 50, 75 e 100%) de extratos aquosos de folhas (material vegetal fresco, p/v). As sementes de arroz cv. Atalanta foram colocadas para embeber por 60 minutos nos diferentes extratos aquosos e concentrações, para logo a seguir serem conduzidos os testes de germinação, primeira contagem de germinação, índice de velocidade de germinação, comprimento da parte aérea e raízes das plântulas e condutividade elétrica. Observou-se que os extratos não tiveram interferência sobre a germinação e primeira contagem de germinação, mas houve influência na velocidade de germinação e na lixiviação de compostos de reserva. Podendo-se concluir a ocorrência de fitotoxicidade diferencial negativa. O objetivo deste trabalho foi analisar e descrever a influência de extratos aquosos de Schinus terebinthifolius Raadi sobre aquênios e no crescimento de plântulas de alface cv. Branca de Boston. O extrato foi obtido a partir de espécies coletadas no campus da UFPel. Os ensaios foram realizados em laboratório e as concentrações utilizadas foram (zero, 50 e 100%) de extratos aquosos de folhas (material vegetal fresco, p/v). Aquênios de alface cv. Branca de Boston foram colocadas para embeber por 60 minutos nas diferentes concentrações do extrato e após, conduzidos os testes: germinação, primeira contagem de germinação, índice de velocidade de germinação, comprimento das plântulas, massa fresca e seca e condutividade elétrica. Concluiu-se que o extrato exerce efeitos fitotóxicos negativos sobre os aquênios e no crescimento das plântulas de alface, nas duas concentrações do extrato utilizadas.application/pdfporUniversidade Federal de PelotasPrograma de Pós-Graduação em Fisiologia VegetalUFPelBRBiologiaFisiologia vegetalArrozAlfaceAlelopatiaOryza sativaLactuca sativaRiceLettuceAllelopathyOryza sativaLactuca sativaCNPQ::CIENCIAS BIOLOGICAS::BOTANICA::FISIOLOGIA VEGETALPotencial alelopático de diferentes espécies de plantas sobre a qualidade fisiológica de sementes de arroz e aquênios de alface e crescimento de plântulas de arroz e alfaceAllelopathic potential of different species of plants on the physiologic quality of rice seeds and lettuce achenes and growth of seedlings of rice and lettuceinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesishttp://lattes.cnpq.br/2380999850841857http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787491U0Lopes, Nei Fernandeshttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4788217T1Luz, Carlos Alberto Silveira dahttp://lattes.cnpq.br/2256403703106245Peres, Wolmer Brodhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4775247D6Bobrowski, Vera Luciahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4784294D6Moraes, Dario Munt deComiotto, Andressainfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFPel - Guaiacainstname:Universidade Federal de Pelotas (UFPEL)instacron:UFPELORIGINALdissertacao_andressa_comiotto.pdfapplication/pdf194503http://guaiaca.ufpel.edu.br/xmlui/bitstream/123456789/2017/1/dissertacao_andressa_comiotto.pdf90f5b071b9aa9c6dca4a57201467871cMD51open accessTEXTdissertacao_andressa_comiotto.pdf.txtdissertacao_andressa_comiotto.pdf.txtExtracted Texttext/plain67854http://guaiaca.ufpel.edu.br/xmlui/bitstream/123456789/2017/2/dissertacao_andressa_comiotto.pdf.txteb9b97c11e030beca78da3d588abdfc9MD52open accessTHUMBNAILdissertacao_andressa_comiotto.pdf.jpgdissertacao_andressa_comiotto.pdf.jpgGenerated Thumbnailimage/jpeg1484http://guaiaca.ufpel.edu.br/xmlui/bitstream/123456789/2017/3/dissertacao_andressa_comiotto.pdf.jpgbafa4842060dd4741cc8321a72a14eb9MD53open access123456789/20172019-09-25 11:51:38.906open accessoai:guaiaca.ufpel.edu.br:123456789/2017Repositório InstitucionalPUBhttp://repositorio.ufpel.edu.br/oai/requestrippel@ufpel.edu.br || repositorio@ufpel.edu.br || aline.batista@ufpel.edu.bropendoar:2019-09-25T14:51:38Repositório Institucional da UFPel - Guaiaca - Universidade Federal de Pelotas (UFPEL)false |
dc.title.por.fl_str_mv |
Potencial alelopático de diferentes espécies de plantas sobre a qualidade fisiológica de sementes de arroz e aquênios de alface e crescimento de plântulas de arroz e alface |
dc.title.alternative.eng.fl_str_mv |
Allelopathic potential of different species of plants on the physiologic quality of rice seeds and lettuce achenes and growth of seedlings of rice and lettuce |
title |
Potencial alelopático de diferentes espécies de plantas sobre a qualidade fisiológica de sementes de arroz e aquênios de alface e crescimento de plântulas de arroz e alface |
spellingShingle |
Potencial alelopático de diferentes espécies de plantas sobre a qualidade fisiológica de sementes de arroz e aquênios de alface e crescimento de plântulas de arroz e alface Comiotto, Andressa Fisiologia vegetal Arroz Alface Alelopatia Oryza sativa Lactuca sativa Rice Lettuce Allelopathy Oryza sativa Lactuca sativa CNPQ::CIENCIAS BIOLOGICAS::BOTANICA::FISIOLOGIA VEGETAL |
title_short |
Potencial alelopático de diferentes espécies de plantas sobre a qualidade fisiológica de sementes de arroz e aquênios de alface e crescimento de plântulas de arroz e alface |
title_full |
Potencial alelopático de diferentes espécies de plantas sobre a qualidade fisiológica de sementes de arroz e aquênios de alface e crescimento de plântulas de arroz e alface |
title_fullStr |
Potencial alelopático de diferentes espécies de plantas sobre a qualidade fisiológica de sementes de arroz e aquênios de alface e crescimento de plântulas de arroz e alface |
title_full_unstemmed |
Potencial alelopático de diferentes espécies de plantas sobre a qualidade fisiológica de sementes de arroz e aquênios de alface e crescimento de plântulas de arroz e alface |
title_sort |
Potencial alelopático de diferentes espécies de plantas sobre a qualidade fisiológica de sementes de arroz e aquênios de alface e crescimento de plântulas de arroz e alface |
author |
Comiotto, Andressa |
author_facet |
Comiotto, Andressa |
author_role |
author |
dc.contributor.authorLattes.por.fl_str_mv |
http://lattes.cnpq.br/2380999850841857 |
dc.contributor.advisorLattes.por.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787491U0 |
dc.contributor.referees1.pt_BR.fl_str_mv |
Luz, Carlos Alberto Silveira da |
dc.contributor.referees1ID.por.fl_str_mv |
|
dc.contributor.referees1Lattes.por.fl_str_mv |
http://lattes.cnpq.br/2256403703106245 |
dc.contributor.referees2.pt_BR.fl_str_mv |
Peres, Wolmer Brod |
dc.contributor.referees2ID.por.fl_str_mv |
|
dc.contributor.referees2Lattes.por.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4775247D6 |
dc.contributor.referees3.pt_BR.fl_str_mv |
Bobrowski, Vera Lucia |
dc.contributor.referees3ID.por.fl_str_mv |
|
dc.contributor.referees3Lattes.por.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4784294D6 |
dc.contributor.advisor-co1.fl_str_mv |
Lopes, Nei Fernandes |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4788217T1 |
dc.contributor.advisor1.fl_str_mv |
Moraes, Dario Munt de |
dc.contributor.author.fl_str_mv |
Comiotto, Andressa |
contributor_str_mv |
Lopes, Nei Fernandes Moraes, Dario Munt de |
dc.subject.por.fl_str_mv |
Fisiologia vegetal Arroz Alface Alelopatia Oryza sativa Lactuca sativa |
topic |
Fisiologia vegetal Arroz Alface Alelopatia Oryza sativa Lactuca sativa Rice Lettuce Allelopathy Oryza sativa Lactuca sativa CNPQ::CIENCIAS BIOLOGICAS::BOTANICA::FISIOLOGIA VEGETAL |
dc.subject.eng.fl_str_mv |
Rice Lettuce Allelopathy Oryza sativa Lactuca sativa |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS BIOLOGICAS::BOTANICA::FISIOLOGIA VEGETAL |
description |
The objective of this work was to analyze and to describe the influence of aqueous extracts of Echinochloa cruzgalli L., Cyperus sp. and Sagittaria montevidensis about the physiological quality of the seeds and growth of seedlings of rice Atalanta . The extracts were acquired from species collected on rice planting areas and in the campus of UFPel. The essays were accomplished at laboratory with different concentrations (zero, 25, 50, 75 and 100%) of aqueous extracts of leaves (vegetal fresh material, w/v). The rice Atalanta seeds were put to soak for 60 minutes in the different aqueous extracts and concentrations, and then conducted to germination, first counting of germination, germination speed rate, aerial part and root length, and electric conductivity tests. It could be observed that the extracts did not have influence about the germination and first germination counting, but there was influence in the germination speed rate and in the leaching of reserve compounds. It could be concluded the occurrence of negative differential plant toxicity. The objective of this work was to analyze and to describe the influence of aqueous extracts of Schinus terebinthifolius Raadi over achenes and the growth of seedlings of lettuce Branca de Boston . The extract was acquired from species collected in the campus of UFPel. The essays were accomplished at laboratory, and the concentrations were (zero, 50 and 100%) of aqueous extracts of leaves (vegetal fresh material, w/v). Achenes of lettuce Branca de Boston were put to soak for 60 minutes in the different extracts concentrations and than conducted to the tests: germination, first counting of germination, germination speed rate, length of the seedlings, fresh and dry mass and electrical conductivity. It could be concluded that the extract exerts negative fitotoxic effect over the achenes and over the growth of lettuce seedlings, in both concentrations used, being more expressive according to the increase of the extract concentration. |
publishDate |
2006 |
dc.date.issued.fl_str_mv |
2006-11-17 |
dc.date.available.fl_str_mv |
2008-09-25 2014-08-20T13:59:09Z |
dc.date.accessioned.fl_str_mv |
2014-08-20T13:59:09Z |
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 |
COMIOTTO, Andressa. Allelopathic potential of different species of plants on the physiologic quality of rice seeds and lettuce achenes and growth of seedlings of rice and lettuce. 2006. 42 f. Dissertação (Mestrado em Biologia) - Universidade Federal de Pelotas, Pelotas, 2006. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufpel.edu.br/handle/ri/2017 |
identifier_str_mv |
COMIOTTO, Andressa. Allelopathic potential of different species of plants on the physiologic quality of rice seeds and lettuce achenes and growth of seedlings of rice and lettuce. 2006. 42 f. Dissertação (Mestrado em Biologia) - Universidade Federal de Pelotas, Pelotas, 2006. |
url |
http://repositorio.ufpel.edu.br/handle/ri/2017 |
dc.language.iso.fl_str_mv |
por |
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por |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Pelotas |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Fisiologia Vegetal |
dc.publisher.initials.fl_str_mv |
UFPel |
dc.publisher.country.fl_str_mv |
BR |
dc.publisher.department.fl_str_mv |
Biologia |
publisher.none.fl_str_mv |
Universidade Federal de Pelotas |
dc.source.none.fl_str_mv |
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