Accelerated aging parameters in the prediction of physiological and sanitary quality of birdsfoot trefoil (Lotus corniculatus L.) seeds

• Autor(a) principal: Lopes,Rodrigo Ramos
• Data de Publicação: 2017
• Outros Autores: Ávila,Mariana Rockenbach de, Gasparetto,Bruno Frosi, Souza,Cléber Henrique Lopes de, Franke,Lucia Brandão
• Tipo de documento: Relatório
• Idioma: eng
• Título da fonte: Journal of Seed Science
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372017000100075
• topic: fungi; germination; saline solution; vigor

Abstract: The objective of this study was to evaluate the accelerated aging test, with and without NaCl solution, predicting the physiological health and quality of birdsfoot trefoil (Lotus corniculatus L.) seed. The experimental design was completely randomized. Ten seed lots were submitted to three conditioning periods (24, 48 and 72 h at 41 ºC). The physiological characterization of the lots was the determination of water content (before and after accelerated aging), germination, first germination count, germination speed index, seedling emergence and seed health test. The data were submitted to variance analyze and the averages were compared by the Scott-Knott test, at 5% probability. The accelerated aging methodologies with saline solution and saturated NaCl solution, conditioned for 48 h, were correlated with seedling emergence test (0.52 and 0.69, respectively), allowing the prediction of physiological quality of birdsfoot trefoil seeds. The use of saturated solution for 48 h decreases incidence of fungi. The traditional method is not suitable because it provides water content variation between samples above the tolerable.