Eurostat, Luxembourg. 12092590 (01/1994-..) Perennial ryegrass `Lolium perenne L.`, seed for sowing: CN 12092590 /Exports /Unit = Prices (Euro/ton) /Partner: Swaziland /Reporter: Eur27 /12092590:Perennial Ryegrass `lolium Perenne L.`, Seed for Sowing.