Johnson, T. Hybridization between Puccinia graminis tritici and Puccinia graminis avenae Sobretiro de: World's Grain Exhibition and Conf. Proc. 2a. 1933. 219-223 p. LCCN: 17319 Subjects--Topical Terms: Hibridación vegetal.Puccinia graminis avenae.Puccinia graminis tritici.