Pradit Pongtongkam, Sumol Nilratnisakorn, Surin Piyachoknakul, Amara Thongpan, Jantakarn Aranananth, Krisana Kowitwanich and Sayan Tadsri 2005. Inducing Salt Tolerance in Purple Guinea Grass (Panicum maximum TD58) via Gamma Irradiation and Tissue Culture. Agriculture and Natural Resources. 39, 4 (Dec. 2005), 681–688.