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Sweet Corn Disease NurseryStewart's Bacterial Wilt, Erwinia stewartii |
Table 1. Sweet corn hybrids, hybrid reactions from disease nurseries,
Stewart's wilt ratings, incidence (%)
of systemically infected plants, harvest date, yield (ear weight) and percent
yield.
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| Hybrid | Stewart's wilt | Systemicc infection (%) |
Harvest Date |
Weight (tons/acre) | Percentd yield | ||
| reactiona | ratingb | non-inoculated | inoculated | ||||
| Bonus | 1 | 2.0 | 5 | 8/4 | 6.9 | 7.4 | 107 |
| GG Code 59 | 1 | 2.2 | 1 | 7/27 | 7.8 | 7.4 | 96 |
| Seneca Nation | 1 | 2.3 | 0 | 7/26 | 6.4 | 6.4 | 102 |
| Ambrosia | 1 | 4.0 | 6 | 7/25 | 6.4 | 6.1 | 96 |
| Eliminator | 2 | 2.1 | 1 | 7/27 | 9.0 | 8.9 | 104 |
| Terminator | 2 | 2.7 | 3 | 7/31 | 6.5 | 6.7 | 104 |
| Trigger | 2 | 2.7 | 5 | 8/4 | 5.9 | 5.5 | 95 |
| GH 2628 | 2 | 3.1 | 16 | 8/7 | 7.5 | 6.4 | 85 |
| HMX 5371 | 3 | 2.0 | 1 | 7/27 | 7.9 | 7.6 | 96 |
| GG Code 62 | 3 | 2.3 | 1 | 8/1 | 8.5 | 8.2 | 98 |
| GG Code 37 | 3 | 2.5 | 3 | 8/1 | 7.2 | 7.7 | 107 |
| GG Code 6 | 3 | 3.0 | 3 | 8/4 | 6.7 | 5.5 | 82 |
| SS 7631 | 3 | 3.1 | 2 | 8/4 | 4.8 | 4.6 | 95 |
| GG Code 17 | 3 | 3.1 | 2 | 7/27 | 5.7 | 6.4 | 110 |
| GSS 4606 | 3 | 3.2 | 9 | 8/3 | 3.9 | 3.4 | 91 |
| SS 781 Ultra | 3 | 3.4 | 2 | 8/3 | 3.2 | 3.6 | 114 |
| Topacio | 3 | 3.5 | 6 | 8/2 | 7.9 | 6.5 | 83 |
| Crisp n Sweet 710 | 3 | 4.2 | 12 | 7/27 | 5.3 | 4.1 | 85 |
| Commander | 3 | 4.4 | 27 | 8/7 | 5.0 | 3.5 | 74 |
| GH 2690 | 3 | 5.4 | 51 | 8/7 | 7.3 | 3.9 | 53 |
| Vanguard | 4 | 3.5 | 18 | 7/27 | 6.2 | 5.2 | 84 |
| Challenger | 4 | 3.8 | 13 | 7/27 | 4.1 | 2.8 | 72 |
| Cornucopia | 4 | 4.5 | 30 | 8/3 | 7.7 | 6.1 | 80 |
| Bonanza | 4 | 5.2 | 39 | 8/2 | 4.8 | 4.1 | 89 |
| WHT 2801 | 5 | 3.2 | 6 | 8/2 | 7.1 | 6.3 | 90 |
| Excellency | 5 | 3.9 | 16 | 7/28 | 8.2 | 7.4 | 91 |
| GG Code 1 | 5 | 3.9 | 5 | 7/26 | 5.4 | 5.6 | 105 |
| GG Code 49 | 5 | 3.9 | 3 | 7/28 | 6.3 | 6.6 | 107 |
| HM 701 | 5 | 4.1 | 6 | 7/26 | 4.8 | 3.8 | 79 |
| Chieftan | 5 e | 4.3 | 13 | 7/31 | 4.3 | 4.6 | 108 |
| Early Cogent | 5 | 4.4 | 16 | 8/7 | 5.5 | 5.0 | 92 |
| GSS 7831 | 5 e | 4.4 | 11 | 7/28 | 6.7 | 5.2 | 76 |
| Elite | 5 | 4.5 | 32 | 8/3 | 6.8 | 5.7 | 87 |
| Excalibur | 5 | 4.6 | 32 | 7/28 | 8.0 | 6.5 | 80 |
| Sure Gold | 6 | 3.2 | 9 | 8/1 | 6.9 | 6.5 | 94 |
| Esquire | 6 | 4.0 | 23 | 8/3 | 6.4 | 6.5 | 102 |
| Champ | 6 | 4.4 | 9 | 7/25 | 6.3 | 5.8 | 94 |
| GG Code 58 | 6 | 4.6 | 14 | 7/25 | 8.5 | 6.8 | 81 |
| Temptation | 6 | 4.7 | 20 | 7/25 | 5.3 | 4.5 | 85 |
| ACX 500 | 6 | 4.9 | 35 | 8/1 | 3.6 | 3.1 | 86 |
| Rival | 6 | 4.9 | 20 | 7/28 | 5.8 | 4.1 | 69 |
| GSS 9299 | 6 | 5.4 | 33 | 7/28 | 6.3 | 5.9 | 77 |
| Reveille | 6 | 5.6 | 24 | 7/26 | 5.0 | 3.4 | 68 |
| Empire | 6 | 6.0 | 61 | 7/31 | 7.3 | 3.7 | 51 |
| GG Code 23 | 7 | 4.3 | 26 | 8/7 | 7.2 | 5.8 | 81 |
| Chase | 7 | 4.4 | 21 | 7/28 | 6.0 | 5.1 | 84 |
| XSC 1040 | 7 | 4.6 | 46 | 8/1 | 5.5 | 4.5 | 84 |
| Tracer | 7 | 5.1 | 40 | 8/2 | 6.4 | 4.4 | 70 |
| FMX 413 WS | 7 | 5.2 | 30 | 7/28 | 6.4 | 5.1 | 79 |
| Royal Sweet | 7 | 5.3 | 45 | 8/1 | 5.5 | 1.9 | 34 |
| ACX 502 | 7 e | 5.4 | 37 | 7/31 | 4.6 | 3.6 | 82 |
| HMX 3392 S | 8 | 4.7 | 43 | 8/4 | 7.6 | 5.8 | 76 |
| Lumina | 8 | 6.2 | 64 | 7/31 | 7.2 | 4.2 | 55 |
| Beretta | 8 | 7.3 | 69 | 7/25 | 6.8 | 2.3 | 31 |
| GG Code 11 | 9 | 6.3 | 63 | 8/3 | 4.8 | 1.8 | 37 |
| DMC 20-38 | 9 | 6.5 | 36 | 8/2 | 8.3 | 3.7 | 47 |
| Sprint | 9 | 6.7 | 74 | 7/31 | 5.2 | 1.8 | 35 |
| ACX 610 | 9 e | 6.8 | 79 | 8/2 | 6.4 | 1.6 | 26 |
| Jubilee | 9 | 7.0 | 80 | 7/28 | 50 | 1.5 | 28 |
| Heritage | 9 | 7.2 | 86 | 7/27 | 6.5 | 2.0 | 30 |
| a Stewart's
wilt reaction from previous disease nurseries (2). b Stewart's wilt rating (1 to 9 scale) in inoculated sub-plots. c Percent systemic infection = (systemically infected plants / total plants) x 100. d Percent yield = (ear weight from inoculated sub-plots / ear weight from non-inoculated sub-plots) x 100. e Hybrids not previously evaluated in disease nurseries. Reactions estimated from similar hybrids. |
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