Accelerated aging as vigor test for sunn hemp seeds

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Abstract

This study aimed to determine the most appropriate method to assess the sunn hemp (Crotalaria juncea L.) seed vigor in the accelerated aging test. Five seed lots from harvest 2007/2008 were evaluated for germination, vigor and seedling emergence in the field. Accelerated aging test was performed at 41°C during 48, 72 and 96 hours, with and without sodium chloride saturated solution. Then, the promising procedure was also performed for 2008/2009 and 2009/2010 harvests. In the traditional accelerated aging test, the no-uniform water acquisition by the seeds adversely affected results. Accelerated aging test with sodium chloride saturated solution is the most appropriate method to evaluate the physiological potential of sunn hemp seeds, and the combination of 41°C and 96 hours is efficient for separating of seed lots in different vigor levels.

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da Silva, C. B., Barbosa, R. M., & Vieira, R. D. (2017). Accelerated aging as vigor test for sunn hemp seeds. Ciencia Rural, 47(1). https://doi.org/10.1590/0103-8478cr20151527

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