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| 18 to 24 degrees or thereabouts
https://cropwatch.unl.edu/assessing-freeze-injury-wheat
Table 1. Temperatures that cause injury to wheat at spring growth stages and symptoms and yield effect of spring freeze injury.
Growth Stage Approximate injurious temperature (Two hours) Primary symptoms Yield effect
Tillering 12 F
Leaf chlorosis; burning of leaf tips; silage odor; blue cast to fields
Slight to moderate
Jointing 24 F
Death of growing point; leaf yellowing or burning; lesions, splitting, or bending of lower stem; odor
Moderate to severe
Boot 28 F
Floret sterility; head trapped in boot; damage to lower stem; leaf discoloration; odor
Moderate to severe
Heading 30 F
Floret sterility; white awns or white heads; damage to lower stem; leaf discoloration
Severe
Flowering 30 F
Floret sterility; wheat awns or white heads; damage to lower stem; leaf discoloration
Severe
Milk 28 F White awns or white heads; damage to lower stems; leaf discoloration; shrunken, roughened, or discolored kernels Moderate to severe
Dough 28 F Shriveled, discolored kernels; poor germination Slight to moderate
We’re just starting to joint so this link from Nebraska damage.. you need to adjust the timeline for the growth stage to the date.. their timeline would be different than ours since we mature earlier.. etc..
Fwiw.
Usually this is a scare.. although some years it’s legit.
Don’t know how bad it’ll be for us this year.. yet. Pros and Cons.. just depends.
Edited by JonSCKs 4/3/2020 08:20
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Wheat market doesn't seem to be concerned about Temperatures.
