Abstract
Twenty-five avirulent/virulent combinations (races) of leaf rust (P. recondita) were identified on 12 near-isogenic Lr differential lines from 334 isolates in 1982 and on 19 races from 144 isolates in 1983 collected in a leaf rust survey conducted in Minnesota. Lines with genes Lr16 and Lr19 were resistant to all isolates; W lines with Lr9 and Lr24 were resistant to most isolates.

This publication has 0 references indexed in Scilit: