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Canola (Brassica napus L.) seed germination influenced by cinnamic and benzoic acids and derivatives: effects on peroxidase

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Canola (Brassica napus L. cv. Hyola 420) seed germination was analyzed under the action of cinnamic acid (CIN), benzoic acid (BEN) and their derivatives caffeic (CAF), p-coumaric (p-CA), ferulic (FA), p-hydroxybenzoic (p-HB), protocatechuic (PRO), gallic (GAL), vanillic (VA) and salicylic (SA) acids. After 120 hr, CIN, CAF, p-CA, BEN, p-HB and PRO reduced seedling fresh weight (FW), seedling length (SL) and root length (RL) but did not affect germination percentage (G). FA, GAL, VA and SA reduced all variables, and the most effective were FA and SA. Results of the effects of these two allelochemicals on peroxidase (POD) activity showed that FA increased root POD but did not alter cotyledon POD while SA increased both cotyledon and root POD. The physiological effects of allelochemicals on seed germination, root growth and POD activity are discussed.
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Document Type: Research Article

Publication date: April 1, 2003

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  • Seed Science and Technology (SST) is one of the leading international journals featuring original papers and review articles on seed quality and physiology as related to seed production, harvest, processing, sampling, storage, distribution and testing. This widely recognised journal is designed to meet the needs of researchers, advisers and all those involved in the improvement and technical control of seed quality.
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