Hussain, Syed Wajid, Kim Richardson, Marty Faville, and Derek Woodfield. “Production of Haploids and Double Haploids in Annual (Lolium Multiflorum) and Perennial (L. Perenne) Ryegrasses”. NZGA: Research and Practice Series 12 (January 1, 2006): 45–48. Accessed April 30, 2026. https://www.nzgajournal.org.nz/index.php/rps/article/view/3048.