Appendix 



Approximate percentages of resistant plants expected for 

 check cultivars used in standard test procedures 









Approximate resistance 



Disease 



Check cultivars 



expected (%) 



Bacterial Wilt 



R 



Vernal 



42 





S 



Narragansett 



1 





S 



Sonora 



< 1 



Anthracnose 



R 



Arc (race 1) 



75 





S 



Arc (race 2) 









R 



Saranac AR (race 1) 



65 





R 



Saranac AR (race 2) 



55 





S 



Saranac (race 1 or race 2) 







Common Leaf Spot 



R 



MSA-CW3An3 



87 





R 



Ramsey 



1 23-70 





S 



Ranger 









S 



Moapa 69 







Downy Mildew 



R 



Saranac 



2 20-50 





S 



Kanza 



0-2 



Fusarium Wilt 



R 



Agate 



54 





R 



Moapa 69 



76 





S 



Narragansett 



22 



Lepto Leaf Spot 



R 



MSA-PL-L 



15-30 





S 



Ranger 









S 



Moapa 69 







Phytophthora Root Rot 



R 



Agate 



43 





R 



CUF-101 



25 





R 



MnP-D1 



40 





S 



Saranac 



3 





S 



Sonora 



2 



Rust 



R 



MSA-CW3An3 



50 





S 



Ranger 



1 





S 



Saranac 



1 





s 



Moapa 69 



10 



Verticillium Wilt 



R 



Vertus 



30-50 





s 



Vernal 



< 7 





s 



Saranac 



<5 





s 



Sonora 



<2 



Yellow Leaf Blotch 



R 



Teton 



30-60 





S 



Ranger 



10-29 



1 High levels of resistance found in Minnesota field test, low to moderate 

 levels found in California. 



Varies with isolate of causal organism. 



37 



