New Zealand Branch
Abstract
in the parasite ana two alleles. They are Px/Rx, Px/rx, Physiological Plant Pathology, R. Heitfuss and P. Williams, ed. (in pressl. px/Rx and px/rx. The incompatibility specified by Px/Rx has to be only great enough to be distinguishable from (2) Flor, H.H. (1946) - Genetics of pathogenicity in Melampsora llni. J. Agr. Res. 73: 335-357. Px/rx. Until recently the three genotypes for compatibility, namely, Px/rx, px/Rx and px/rx were considered to be (3) Flor, H.H. (1947) - Inheritance of...