Potencial fisiológico e tamanho de sementes de abóbora
Ano de defesa: | 2007 |
---|---|
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/1/5176 |
Resumo: | The objective of this study was to compare vigor tests in order to evaluate the physiological potential of seed lots, classified according to their size, of four squash species: Menina Brasileira , Caserta , Caravela , and De Tronco . First, the seed lots were submitted to germination tests, as well as to first count, accelerated aging, suboptimal temperature, cold test, evaluation of seedlings under laboratory conditions, emergence at 21 days, emergence speed index, and hypocotyls length by the emergence. Afterwards, alterations were implemented with respect to the cold test, exposing the seeds to chilling conditions for different periods (three, five, seven, and nine days). The experiments followed a totally randomized design, with four replications. The averages were compared by the Tukey test, at 5% of probability, and the influence of chilling periods by polynomial regression analysis. It was concluded that the squash seed size influences significantly the vigor, and this influence depends on the extent of the differences in terms of size among the classes. From the results, the cold test was found to be the most efficient method to stratify the vigor influence over the different classes of seed size. In addition, as for test conditions, it was concluded that the temperature have to be kept at 10°C, for seven days. What is more, the results indicate that the Pearson s correlation coefficient method was not effective for the purpose of correlating the behavior of vigor tests under laboratory conditions with the emergence of plants in a greenhouse. |
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2017-05-112017-05-112007-02-27VIDAL, Maquiel Duarte. Physiological potential and size of squash seeds. 2007. 59 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Santa Maria, Santa Maria, 2007.http://repositorio.ufsm.br/handle/1/5176The objective of this study was to compare vigor tests in order to evaluate the physiological potential of seed lots, classified according to their size, of four squash species: Menina Brasileira , Caserta , Caravela , and De Tronco . First, the seed lots were submitted to germination tests, as well as to first count, accelerated aging, suboptimal temperature, cold test, evaluation of seedlings under laboratory conditions, emergence at 21 days, emergence speed index, and hypocotyls length by the emergence. Afterwards, alterations were implemented with respect to the cold test, exposing the seeds to chilling conditions for different periods (three, five, seven, and nine days). The experiments followed a totally randomized design, with four replications. The averages were compared by the Tukey test, at 5% of probability, and the influence of chilling periods by polynomial regression analysis. It was concluded that the squash seed size influences significantly the vigor, and this influence depends on the extent of the differences in terms of size among the classes. From the results, the cold test was found to be the most efficient method to stratify the vigor influence over the different classes of seed size. In addition, as for test conditions, it was concluded that the temperature have to be kept at 10°C, for seven days. What is more, the results indicate that the Pearson s correlation coefficient method was not effective for the purpose of correlating the behavior of vigor tests under laboratory conditions with the emergence of plants in a greenhouse.O objetivo do trabalho foi comparar testes de vigor para avaliação do potencial fisiológico de lotes de sementes, classificados por tamanho, de quatro variedades de abóbora: Menina Brasileira, Caserta, Caravela e De Tronco. Os lotes de sementes foram submetidos inicialmente aos testes de germinação, primeira contagem, envelhecimento acelerado, temperatura subótima, teste de frio, avaliação de plântulas em laboratório, emergência aos 21 dias, índice de velocidade de emergência e comprimento do hipocótilo na emergência; posteriormente foram realizadas modificações no teste de frio, alterando o período de exposição das sementes ao frio (três, cinco, sete e nove dias). Foram conduzidos experimentos no delineamento inteiramente casualizado, com quatro repetições. As médias foram comparadas pelo teste de Tukey, a 5% e, o efeito dos períodos de frio por análise de regressão polinomial. Concluiu-se que, há um efeito significativo do tamanho de sementes de abóbora no vigor, dependendo da magnitude das diferenças entre tamanho das classes; o teste de frio foi o mais eficiente para estratificar o efeito do vigor dentro das classes de tamanho de sementes e devem ser mantidas as condições do teste com 10°C de temperatura durante sete dias e, o coeficiente de correlação linear simples (Pearson) não se mostrou eficiente para associar o comportamento dos testes de vigor em laboratório com a emergência de plantas em casa de vegetação.Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorapplication/pdfporUniversidade Federal de Santa MariaPrograma de Pós-Graduação em AgronomiaUFSMBRAgronomiaCucurbitaQualidadeTestes de vigorCucurbitaQualityVigor testsCNPQ::CIENCIAS AGRARIAS::AGRONOMIAPotencial fisiológico e tamanho de sementes de abóboraPhysiological potential and size of squash seedsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisGarcia, Danton Camachohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4702954P8Menezes, Nilson Lemos dehttp://lattes.cnpq.br/0551755093817460Lopes, Sidinei Joséhttp://lattes.cnpq.br/7533347017859354Franzin, Simone Medianeirahttp://lattes.cnpq.br/9408955824479246http://lattes.cnpq.br/8246706207382166Vidal, Maquiel Duarte5001000000094005003003005005008fe1d006-0ca5-4011-9f61-b6ac19c5f44748fc89b1-68f2-4600-9d48-e451b08b135bc901f62d-8bb9-4dd7-968a-1bbcb67a85f8fa22361e-5f58-440d-94f2-64db55bb0d2b1ef02755-4496-43a0-a10b-d46e4cfa917einfo:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALMAQUIELVIDAL.pdfapplication/pdf240335http://repositorio.ufsm.br/bitstream/1/5176/1/MAQUIELVIDAL.pdfadcaeb8c8580e5655e0f0b6bd0429a06MD51TEXTMAQUIELVIDAL.pdf.txtMAQUIELVIDAL.pdf.txtExtracted texttext/plain104437http://repositorio.ufsm.br/bitstream/1/5176/2/MAQUIELVIDAL.pdf.txtf523c0f0b579d0856c8ad907081c1f86MD52THUMBNAILMAQUIELVIDAL.pdf.jpgMAQUIELVIDAL.pdf.jpgIM Thumbnailimage/jpeg5731http://repositorio.ufsm.br/bitstream/1/5176/3/MAQUIELVIDAL.pdf.jpge9aa62bcacfb2df129d7f62cd2bbb9f9MD531/51762023-03-07 09:49:12.488oai:repositorio.ufsm.br:1/5176Repositório Institucionalhttp://repositorio.ufsm.br/PUBhttp://repositorio.ufsm.br/oai/requestopendoar:39132023-03-07T12:49:12Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Potencial fisiológico e tamanho de sementes de abóbora |
dc.title.alternative.eng.fl_str_mv |
Physiological potential and size of squash seeds |
title |
Potencial fisiológico e tamanho de sementes de abóbora |
spellingShingle |
Potencial fisiológico e tamanho de sementes de abóbora Vidal, Maquiel Duarte Cucurbita Qualidade Testes de vigor Cucurbita Quality Vigor tests CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
title_short |
Potencial fisiológico e tamanho de sementes de abóbora |
title_full |
Potencial fisiológico e tamanho de sementes de abóbora |
title_fullStr |
Potencial fisiológico e tamanho de sementes de abóbora |
title_full_unstemmed |
Potencial fisiológico e tamanho de sementes de abóbora |
title_sort |
Potencial fisiológico e tamanho de sementes de abóbora |
author |
Vidal, Maquiel Duarte |
author_facet |
Vidal, Maquiel Duarte |
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://lattes.cnpq.br/0551755093817460 |
dc.contributor.referee2.fl_str_mv |
Lopes, Sidinei José |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/7533347017859354 |
dc.contributor.referee3.fl_str_mv |
Franzin, Simone Medianeira |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/9408955824479246 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/8246706207382166 |
dc.contributor.author.fl_str_mv |
Vidal, Maquiel Duarte |
contributor_str_mv |
Garcia, Danton Camacho Menezes, Nilson Lemos de Lopes, Sidinei José Franzin, Simone Medianeira |
dc.subject.por.fl_str_mv |
Cucurbita Qualidade Testes de vigor |
topic |
Cucurbita Qualidade Testes de vigor Cucurbita Quality Vigor tests CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
dc.subject.eng.fl_str_mv |
Cucurbita Quality Vigor tests |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
description |
The objective of this study was to compare vigor tests in order to evaluate the physiological potential of seed lots, classified according to their size, of four squash species: Menina Brasileira , Caserta , Caravela , and De Tronco . First, the seed lots were submitted to germination tests, as well as to first count, accelerated aging, suboptimal temperature, cold test, evaluation of seedlings under laboratory conditions, emergence at 21 days, emergence speed index, and hypocotyls length by the emergence. Afterwards, alterations were implemented with respect to the cold test, exposing the seeds to chilling conditions for different periods (three, five, seven, and nine days). The experiments followed a totally randomized design, with four replications. The averages were compared by the Tukey test, at 5% of probability, and the influence of chilling periods by polynomial regression analysis. It was concluded that the squash seed size influences significantly the vigor, and this influence depends on the extent of the differences in terms of size among the classes. From the results, the cold test was found to be the most efficient method to stratify the vigor influence over the different classes of seed size. In addition, as for test conditions, it was concluded that the temperature have to be kept at 10°C, for seven days. What is more, the results indicate that the Pearson s correlation coefficient method was not effective for the purpose of correlating the behavior of vigor tests under laboratory conditions with the emergence of plants in a greenhouse. |
publishDate |
2007 |
dc.date.issued.fl_str_mv |
2007-02-27 |
dc.date.accessioned.fl_str_mv |
2017-05-11 |
dc.date.available.fl_str_mv |
2017-05-11 |
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 |
VIDAL, Maquiel Duarte. Physiological potential and size of squash seeds. 2007. 59 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Santa Maria, Santa Maria, 2007. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/5176 |
identifier_str_mv |
VIDAL, Maquiel Duarte. Physiological potential and size of squash seeds. 2007. 59 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Santa Maria, Santa Maria, 2007. |
url |
http://repositorio.ufsm.br/handle/1/5176 |
dc.language.iso.fl_str_mv |
por |
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por |
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500100000009 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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Universidade Federal de Santa Maria |
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Programa de Pós-Graduação em Agronomia |
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BR |
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Agronomia |
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Universidade Federal de Santa Maria |
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