Main Article Content
The objective of the present study was to evaluate the methodology of the accelerated aging test to evaluate the physiological potential of onion seeds, as well as verify the possibility of using unsaturated and saturated solutions of sodium chloride (NaCl) as an option for water uptake control in seeds during the test without reducing sensitivity. Five lots of onion seeds were tested for germination, seedling emergence, emergence speed and accelerated aging (periods of 24, 48, 72, or 96 hours, with or without the use of a saturated saline solution of NaCl). The use of unsaturated and saturated solutions of NaCl reduced water absorption by onion seeds during the accelerated aging test, resulting in a less pronounced rate of deterioration, and less drastic and more uniform results. The 48 hour treatment with unsaturated and saturated NaCl solutions is an option for use because it promotes a better classification of the onion seed lots at different vigor levels.
Bhering, M.C., D.C.F.S. Dias, D.I Barros, and D. Tokuhisa. 2003. Evaluation of the vigor on watermelon seeds (Citrullus lanatus Scherad.) by the accelerated aging test. Rev. Bras. Sem. 25, 1-6.
Ferreira, D.F. 2000. SISVAR statistics analyses- Windows version 4.0. pp. 225-258. In: Anais Reunião Anual da Região Brasileira da Sociedade Internacional de Biometria. UFSCAR, São Carlos, SP, Brazil.
Hampton, J.G. and D.M. Tekrony. 1995. Handbook of vigour test methods. 3th ed. ISTA, Zurich.
Jianhua, Z. and M.B. McDonald. 1996. The saturated salt accelerated aging test for small-seeded crops. Seed Sci. Technol. 25, 123-131.
Maguire, J.D. 1962. Speed of germination-aid in selection and evaluation for seedling emergence and vigour. Crop Sci. 2, 176-177.
Marcos Filho, J. 1999a. Accelerated aging test. In: Krzyzanowski, F.C., R.D. Vieira, and J. B. França (eds.). Seed vigor. Concepts and testing. Abrates, Londrina, Brazil.
Marcos Filho, J. 1999b. Vigor tests. Importance and use. In: Krzyzanowski, F.C., R.D. Vieira, and J. B. França (eds.). Seed vigor. Concepts and testing. Abrates, Londrina, Brazil.
Marcos Filho, J. 2005. Seed physiology of cultivated plants. FEALQ, Piracicaba, SP, Brazil.
Ministry of Agriculture, Livestock and Food Supply. 2009. In: Brazilian rules for seed testing. In: http://www.agricultura.gov.br/arq_editor/file/2946_regra_analise__sementes.pdf 2009. 395p; access: December, 2010.
Nakagawa, J. 1999. Vigor tests based on seedlings performance. In: Krzyzanowski, F.C., R.D. Vieira, and J.B. França (eds.). Seed vigor. Concepts and testing. Abrates, Londrina, Brazil.
Panobianco, M. and J. Marcos Filho. 2001. Accelerated aging and controlled deterioration of tomato seeds. Sci. Agric. 58, 525-531.
Ramos, N.P., E.P.O. Flor, E.A.F. Mendonça, and K. Minami. 2004. Accelerated aging of Eruca sativa L. seeds. Rev. Bras. Sem. 26, 98-103.
Rodo, A.B. 2002. Physiological potential evaluation of onion seeds and its relation to field plant performance. Ph.D. thesis. São Paulo University, Piracicaba, Brasil.
Rodo, A. B. and J. Marcos-Filho. 2003. Onion seed vigor in relation to plant growth and yield. Hortic. Bras. 21, 220-226.
Rodo, A.B., M. Panobianco, and J. Marcos Filho. 2000. Alternative methodology for the accelerated aging test for carrot seeds. Sci. Agric. 57, 289-292.
Salisbury, F.B. and C.W. Ross. 1992. Plant physiology. 4th ed. Wadsworth Inc., Belmont, CA.
Torres, S.B. 2004. Accelerated aging test on anise seeds. Braz. J. Seeds 26, 20-24.
Torres, S.B. and J. Marcos Filho. 2003. Accelerated aging of melon seeds. Sci. Agric. 60, 77-82.
Torres, S.B. 2005. Envelhecimento acelerado em sementes de pepino com e sem solução salina saturada. Hortic. Bras. 23, 303-306.
Tunes, L.M., P.G Badinelli, F. Olivo, and A.C.S.A. Barros. 2009. Accelerated aging test in Barley seeds. Magistra 21, 111-119.
Tunes, L.M., D.C. Pedroso, P.G. Badinelli, L.C. Tavares, C.A. Rufino, A.C.S.A. Barros, and M.F.B. Muniz. 2011. Accelerated aging of ryegrass seeds submitted to saturated salt solution. Ciência Rural 41, 33-37.