Article

This study deals with the seed germination for Onopordum tauricum (Asteraceae). The cypselae were collected from two populations in the Marche and Umbria Region (Italy). The highest germination value (93.6%) was obtained after 24 hours of soaking in a 500 ppm GA3 solution and then incubated at a constant temperature of 20°C with a 12/12h light-dark photoperiod.