A second, previously unpublished ozone-exposure experiment, using the same experimental set up and treatments, was conducted in year 2013 on clover/ryegrass pasture mesocosms using T. repens cv.
Crusader and Lolium perenne cv. Abermagic. L. perenne cv. Aber- Magic was sown at a rate of 0.28 g per pot directly into 10 L pots (27.5 cm diameter 22 cm height) filled with compost (John Innes No. 2; J. Arthur Bowers, Lincoln, UK).