(EN) Vernalization, su britannica.com, Encyclopædia Britannica Online. URL consultato il 24 gennaio 2011.
«vernalization, the artificial exposure of plants (or seeds) to low temperatures in order to stimulate flowering or to enhance seed production. By satisfying the cold requirement of many temperate-zone plants, flowering can be induced to occur earlier than normal or in warm climates lacking the requisite seasonal chilling.»