Mississippi County
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| Growth Stage | Injurious Temp (2 hours) | Primary Symptoms | Yield Effect |
| Tillering | 12 F | Leaf chlorosis: leaf tip burning: silage odor: blue cast to field | Slight to moderate |
| Jointing | 24 F | Death to growing point: leaf yellowing and burning: lesions, splitting, or bending of lower stem: odor | Moderate to severe |
| Boot | 28 F | Floret sterility: spike trapped in boot: lower stem damage: leaf discoloration | Moderate to severe |
| Heading | 30 F | Floret sterility: white awns or spikes: lower stem damage: leaf discoloration | Severe |
| Flowering | 30 F | Floret sterility: white awns or spikes: lower stem damage: leaf discoloration | Severe |
| Milk | 28 F | White awns or spikes: lower stem damage: leaf discoloration: shrunken, roughened, or discolored kernels | Moderate to severe |
| Dough | 28 F | Shriveled, discolored kernels: poor germination | Slight to moderate |
Table taken from Spring Freeze Injury to Kansas Wheat and Wheat Management in Kentucky: Section 3
Kansas State University Wheat Freeze Guide
University of Nebraska Wheat Freeze Damage Guide
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University of Missouri Extension Mississippi County mississippico@missouri.edu Updated 05/24/04 |
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