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Sweet Corn Disease Nursery


2000 Annual Report

J.K. Pataky, P.M. Michener, N.D. Freeman, and M.C. Pate

Table 1.   Summary statistics for common rust, NLB, SLB, Stewart's wilt, and MDM ratings

Disease n mean std. dev. Range BLSD CV (%)
Common rust -leaf area infected 244 24 % 11.6 % 2 - 57 % 6.7 % 18.9
NLB - leaf area infected 245 27 % 9.1 % 6 - 53 % 8.4 % 18.7
SLB - leaf area infected 243 3.0 1.09 1 - 8 1.38 26.4
Stewart's wilt - seedling ratings 246 3.0 0.75 1.7 - 5.4 0.94 19.4
*Stewart's wilt - incidence 244 13 % 11.3 % 0 - 56 % 10.8 % 49.5
*MDM - incidence (mostly MDMV-A) 244 30 % 18.6 % 0 - 75 % 36.9 % 65.2
*MDM - incidence (mostly SCMV-MB) 243 82% 16.8% 17 - 100% 20.8 % 16.1
* Stewart's and MDM incidence = % of naturally infected plants.

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* Department of Crop Sciences
* College of Agricultural, Consumer, and Environmental Sciences
* University of Illinois at Urbana-Champaign

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