N-Dodecyloxymethylene-N-methylpiperidinium chloride (DMMP) and N-dodecyloxyme-thylene-N-methylmorpholinium chloride (DMMM) retarded germination of seeds of 9 cultivated plant species when applied at a concentration of 10-3 M. and inhibited germination at a concentration of 10-2 M. The exceptions were represented by Lepidium sativum L. and Linum usitatissimum L. https://www.ealisboa.com/top-sale-AR-10-Vert-Monoband-Indep-10m-2-Ringo-quick-deal/