2008
DOI: 10.1590/s0101-31222008000200004
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Adequação do teste de raios X para avaliação da qualidade de sementes de Embaúba (Cecropia pachystachya Trec.)

Abstract: RESUMO -O trabalho foi realizado com o objetivo de adequar o teste de raios X para a avaliação na germinação. As sementes foram expostas à radiação por tempos e intensidades variados, com estruturas internas da semente de embaúba e a exposição por 360 segundos na intensidade de 10kV é adequada para a visualização. Há relação entre o nível de formação das sementes e os resultados do teste de germinação. USING X-RAY TEST TO EVALUATE THE QUALITY OF EMBAÚBA SEEDS (Cecropia pachystachya Trec.)ABSTRACT -The x-ray te… Show more

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Cited by 32 publications
(27 citation statements)
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“…Thus, this technique has been used in genetic plant breeding studies, enabling detection of abnormalities in embryos and determination of their stage of development, as well as in isolation of mutant embryos of Arabidopsis haliana . It also allowed seed morphology to be related to germination or morphology of seedlings of diverse agricultural and forest species (Burg et al, 1994;Battisti et al, 2000;Machado and Cicero, 2003;Oliveira et al, 2003;Mondo and Cicero, 2005;Pupim et al, 2008;Pinto et al, 2009a;Carvalho et al, 2010;Gagliardi and Marcos-Filho, 2011;Kobori et al, 2012;Silva, P.P. et al, 2014;Gomes et al, 2014;Silva, V.N.…”
Section: Introductionmentioning
confidence: 99%
“…Thus, this technique has been used in genetic plant breeding studies, enabling detection of abnormalities in embryos and determination of their stage of development, as well as in isolation of mutant embryos of Arabidopsis haliana . It also allowed seed morphology to be related to germination or morphology of seedlings of diverse agricultural and forest species (Burg et al, 1994;Battisti et al, 2000;Machado and Cicero, 2003;Oliveira et al, 2003;Mondo and Cicero, 2005;Pupim et al, 2008;Pinto et al, 2009a;Carvalho et al, 2010;Gagliardi and Marcos-Filho, 2011;Kobori et al, 2012;Silva, P.P. et al, 2014;Gomes et al, 2014;Silva, V.N.…”
Section: Introductionmentioning
confidence: 99%
“…Várias pesquisas têm demonstrado que a análise de imagens de raios X possibilita a identificação de danos que afetam a qualidade de sementes de espécies florestais, como Ginkgo biloba (SALINAS et al, 2012), Tabebuia heptaphylla (AMARAL et al, 2011), Xylopia aromatica (SOCOLOWSKI et al, 2011), Tecoma stans (SOCOLOWSKI et al, 2008), Eremanthus erythropappus (FEITOSA et al, 2009), Cedrela fissilis (MASSETO et al, 2008), Platypodium elegans (SOUZA et al, 2008), Cecropia pachystachya (PUPIM et al, 2008), Eugenia pleurantha (MASSETO et al, 2007) Germoplasma da Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri), os quais estavam armazenados em sacos de papel em câmara fria (15-18°C/45-50%UR). As sementes foram analisadas pelo teste de raios X e, posteriormente, foram conduzidas ao teste de germinação, doze meses após a colheita dos frutos e a extração das sementes.…”
Section: Introductionunclassified
“…Among the principal information originating from research on this topic is the lower germination of Lithraea molleoides (aroeira-branca) seeds with an embryonic area of less than 100% of the internal seed cavity area (Machado and Cicero, 2003), abnormal seedlings and ungerminated seeds from partially formed Cecropia pachystachya (embaúba) seeds (Pupim et al, 2008), low germination of castor bean seeds with less than 50% of the internal cavity area occupied by the embryo (Carvalho et al, 2010) and decreases in the percentage of normal seedlings from bell pepper seeds with free areas (empty spaces) between the embryo and endosperm greater than 2.7% (Dell'Aquila, 2007) and with between 50 and 75% occupation of the internal cavity by the embryo and endosperm (Gagliardi and Marcos-Filho, 2011).…”
Section: Introductionmentioning
confidence: 99%