Three of the four investigated species (R. acris, L. pratensis, andV. sepium) were affected in their reproductive capacity by the her-bicide treatment. Flowering patterns of these three species weresignificantly suppressed, and in some herbicide treated plots, nofruits were formed. During the presented field experiment, theflowering intensity of R. acris was already investigated in thefirst and second experimental season (2010 and 2011) and it wasdetected that the herbicide reduced the flowering intensity by 85%compared with the control plots in 2011 (Schmitz et al., 2013). Theresults of the present study (third experimental season) showedthat also the mean 1-seed weight of R. acris was reduced in the her-bicide treated plots, which could reduce germination rates of theseseeds. However, statistical analysis did not find a significant reduc-tion in the germination rate of R. acris, which may be caused bythe reduced number of replicates (collected fruits) in the herbicidetreated plots.