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Sweet Corn Disease Nursery


1998 Annual Report

Table 3.   Criteria for classifying hybrid reactions to diseases in the 1998 nursery

Disease Classification of reaction
0 1 2 3 5 7 9
Common rust RP   < 18 < 22 < 27 < 31 > 31
NLB HtN < 10 < 20 < 26 < 40 < 45 > 45
Stewart's wilt   < 2   < 2.75 < 4.0 < 4.5 > 4.5
MDM   < 20   < 35 < 50   > 50
SLB   < 2   < 3.2 < 4.5 < 5.5 > 5.5
Southern rust Rpp     < 5 < 6 < 7 > 7
Classification: 1 - resistant, 3 - moderately resistant, 5 - moderate, 7 - moderately susceptible, 9 - susceptible.

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