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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Qualidade de sementes de soja avaliadas pelo teste de tetrazólio: estudo de caso na empresa Dimicron / Soybean seed quality valued by test tetrazolium: a case study in the company Dimicron

Uhde, Shirlei 17 November 2014 (has links)
Submitted by Maria Beatriz Vieira (mbeatriz.vieira@gmail.com) on 2017-03-03T15:30:24Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) dissertacao_shirlei_uhde.pdf: 798758 bytes, checksum: 087cc2c455112b068e7753167b47f0d8 (MD5) / Approved for entry into archive by Aline Batista (alinehb.ufpel@gmail.com) on 2017-03-09T17:59:02Z (GMT) No. of bitstreams: 2 dissertacao_shirlei_uhde.pdf: 798758 bytes, checksum: 087cc2c455112b068e7753167b47f0d8 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Aline Batista (alinehb.ufpel@gmail.com) on 2017-03-09T18:00:44Z (GMT) No. of bitstreams: 2 dissertacao_shirlei_uhde.pdf: 798758 bytes, checksum: 087cc2c455112b068e7753167b47f0d8 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2017-03-09T18:00:51Z (GMT). No. of bitstreams: 2 dissertacao_shirlei_uhde.pdf: 798758 bytes, checksum: 087cc2c455112b068e7753167b47f0d8 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2014-11-17 / Sem bolsa / O presente trabalho teve como objetivo fazer um levantamento da qualidade fisiológica de sementes de soja, das categorias S1 e S2, analisadas no Laboratório de Analises de Sementes da Dimicron Química do Brasil Ltda., usando o teste de tetrazolio, para caracterizar as características fisiológicas: viabilidade, vigor, danos mecânicos, danos por umidade, danos por percevejos, causas da perda da viabilidade, classificação do vigor, relacionar nível de sementes de mais alto vigor Para o trabalho, foram coletados os dados das analises das safras 2008/2009, 2009/2010, 2010/2011 e 2011/2012, referente às informações obtidas dos testes de tetrazólio aplicados nas amostras de lotes de sementes das categorias S1 e S2 que foram analisadas. Foram examinados os resultados de 481 lotes analisados, sendo 309 lotes da categoria S1 e 172 lotes da categoria S2. Os parâmetros empregados para avaliar a qualidade fisiológica das sementes foram: viabilidade (TZ 1-5), vigor (TZ 1-3), danos mecanicos (TZ 1-8), danos por umidade (TZ 1-8), danos por percevejo (TZ 1-8). Os resultados obtidos permitem concluir que: As maiores percentagens de lotes de alto vigor foram obtidas nas safras de 2008/2009 e 2009/2010, para ambas classes de sementes. Os danos mecânicos e de umidade são os mais freqüentes em sementes de soja. / This study aimed to survey the physiological quality of soybean seeds, S1 and S2 categories analyzed in LABORATORY analysis of seeds of Dimicron Chemistry of Brazil Ltda., Using the tetrazolium test to characterize the features physiological: feasibility, force, mechanical damage, moisture damage, bedbugs for damages, loss of viability of the causes of force classification, relate highest level of seed vigor for work, we collected data from the analysis of crops 2008/2009, 2009/2010, 2010/2011 and 2011/2012, referring to the information obtained from tetrazolium tests applied in samples of seed lots of S1 and S2 categories that were analyzed. We examined the results of 481 lots, with 309 lots category S1 and S2 172 lots category. The parameters used to evaluate the physiological quality of seeds were: viability (TZ 1-5), vigor (TZ 1-3), mechanical damage (TZ 1-8), moisture damage (TZ 1-8), damages for bug (TZ 1-8). The results showed that: The highest percentages of lots of high vigor were obtained for crop years 2008/2009 and 2009/2010, for both seed classes. Mechanical damage and humidity are the most frequent in soybean seeds.

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