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Using X rays to evaluate fissures in rice seeds dried artificially; Utilização de raios X na avaliação de fissuras em sementes de arroz submetidas à secagem artificial

Menezes, Nilson Lemos De; Cicero, Silvio Moure; Villela, Francisco Amaral; Bortolotto, Rafael Pivotto Universidade De São Paulo

Rev. bras. sementes, v.34, n.1, p.70-77, 2012

Associação Brasileira de Tecnologia de Sementes 2012

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  • Título:
    Using X rays to evaluate fissures in rice seeds dried artificially; Utilização de raios X na avaliação de fissuras em sementes de arroz submetidas à secagem artificial
  • Autor: Menezes, Nilson Lemos De; Cicero, Silvio Moure; Villela, Francisco Amaral; Bortolotto, Rafael Pivotto
  • Universidade De São Paulo
  • Assuntos: Oryza Sativa L; Image Analysis; Seed Quality; X-Ray Images; Germination; Oryza Sativa L; Análise De Imagens; Qualidade De Sementes; Imagens De Raios-X; Germinação
  • É parte de: Rev. bras. sementes, v.34, n.1, p.70-77, 2012
  • Descrição: The objective of the present study was to evaluate the efficiency of X-rays in identifying fissures in artificially dried rice seeds and the relationship between damage and seed performance in the germination test. Irrigated rice seeds of the IRGA 417 and IRGA 420 cultivars were harvested with 23.3 and 24.5% water content respectively and submitted to stationary drying treatments at 32, 38, 44 and 50 °C. X-rays were taken of subsamples of 100 seeds for each treatment, using an MX-20 X-ray equipment. The X-rayed seeds were classified from 1 to 3, where 1 corresponded to seeds without fissures, 2 to seeds with non-severe fissures and 3 to seeds with severe fissures. The same X-rayed seeds were planted and on the seventh day the seedlings (normal or abnormal) and dead seeds were photographed and evaluated to verify any relationship between the fissures and physiological potential. Higher drying temperature increased the percentage of fissures in the two cultivars, which can adversely affect their germination. Seeds with fissures can be identified using X-rays.
  • DOI: 10.1590/S0101-31222012000100009
  • Títulos relacionados: Revista Brasileira de Sementes
  • Editor: Associação Brasileira de Tecnologia de Sementes
  • Data de publicação: 2012
  • Idioma: Inglês

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