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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 2. Reactions of sweet corn hybrids included as standards in the 2000 disease nursery

Hybrid Common rust NLB Stewart's wilt SLB MDM
Prior 00 Rating Prior 00 Rating Prior 00 Rating % Prior 00 Rating Prior 00 MDM SCM
Bonus 0 2 8 % 5 5 26 % 1 1 1.8 5% 7 6 4.7 1 1 2 % 31%
Day Star 6 8 41 1 2 9 3 5 2.7 22 1 2 2.0 8 9 37 85
Eliminator 0 5 15 6 6 31 2 4 2.9 2 6 6 4.3 1 1 2 46
Green Giant 27 3 3 14 3 4 23 2 2 2.2 4 5 4 3.0 6 9 16 99
Jubilee 5 6 29 8 8 37 9 9 4.9 46 5 2 2.0 9 5 35 60
Miracle 2 5 20 2 5 25 1 1 1.9 5 4 2 2.3 9 9 52 82
Phenomenal 5 7 38 5 5 30 5 5 3.5 7 5 4 3.3 9 9 21 85
Prime Plus 0 3 16 2 2 11 3 3 2.1 11 6 7 5.7 9 9 36 74
Snow White 9 9 57 7 7 32 7 9 4.4 35 3 4 3.0 4 3 2 65
Sum. Sweet 7710 6 8 40 2 2 8 2 3 2.2 14 2 2 2.3 8 9 51 93
Ultimate 6 7 39 2 3 16 2 1 2 4 2 2 2.0 8 9 25 90
Prior - reaction in previous years (1984-1999).
00 - reaction in 2000: 1 - resistant, 3 - moderately resistant, 5- moderate, 7 - moderately susceptible, 9 - susceptible.
Rating - mean rating in 2000: 0 to 100% for severity of rust and NLB; 1 to 9 for Stewart's wilt (inoculated seedling)
% - natural incidence (0 to 100%) of systemic Stewart's wilt of MDM due to MDMV-A or SCMV (MDMV-B).

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