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| We got down to 23 to 24 degreed here this am.. wheat in the jointing stage can be injuried at those temperatures.
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
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Edited by JonSCKs 4/3/2020 08:21
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Nice little snow storm
