The study looked at how perennial ryegrass forms stolons, which are horizontal stems that help the plant spread. They found that stolon numbers increased after being buried in soil or cut. In a grazed field, stolon lengths varied throughout the year, with the most growth in December. Stolon formation in ryegrass is triggered by being buried in winter. The plant renews itself by producing new tillers from stolons in early summer. This process is important for managing grazing areas.