Back to 2000 Annual Report
Back to 2000 Annual Report |
Sweet Corn Disease Nursery2000 Annual ReportJ.K. Pataky, P.M. Michener, N.D. Freeman, and M.C. Pate |
Table 3. Criteria for classifying hybrid reactions to diseases in the 2000 nursery
| Classification of reaction | |||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | |
| Common rust (%) | < 5 | <=10 | <=18 | <26 | <33 | <40 | <49 | >=49 | |
| NLB (%) | <10 | <=15 | <=20 | <24 | <30 | <=32 | <38 | <42 | >=42 |
| SLB | < 2 | <=2.5 | < 3 | < 4 | < 5 | < 6 | < 7 | >=7 | |
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Classification: 1 - resistant, 3 - moderately resistant, 5- moderate, 7 - moderately susceptible, 9 - susceptible. Stewart's wilt classifications based on a cluster analysis of severity ratings and incidence of natural infection. MDM classifications based on a cluster analysis of incidence in trials with predominantly MDMV-A or SCMV (MDMV-B). |
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