Biagioli, Carolina, Raúl Ríos, Alicia Basso, Pascual Franzone, and Alberto Prina. 2006. “In Vitro Culture Response of Barley (Hordeum Vulgare) Ethylene Synthesis Mutant MC 169”. Electronic Journal of Biotechnology 9 (3). Valparaíso, Chile:0-0. https://www.ejbiotechnology.info/index.php/ejbiotechnology/article/view/v9n3-7.