Freeze injury update – worse than we thought

Great insight from Jeff Edwards, Small Grains Extension Specialist at Oklahoma State University, on the impact of freezing temperatures on that state’s wheat crop.

World of Wheat

On April 4th I toured southwest Oklahoma and surveyed freeze injury to wheat. In my experience, most freeze events are overhyped; however, this one was the real deal Holyfield.  I traveled a route from Faxon to Chattanooga to Altus to Blair and ended up at Apache. Damage was similar at all sites, with injury ranging from 50 to 80%.

The best looking wheat was the hardest hit. Particularly troubling are some fields in the Altus area that easily had 80 bushel potential prior to the freeze. In most of these fields we are too far past the tillering stage to have yield compensation from secondary tillers. Late-emerging fields that were jointing or smaller escaped the freeze with little injury. Fields that had been heavily grazed and/or under-fertilized also escaped with relatively minor injury.  Conditions improved slightly when I checked wheat in the Chickasha area and injury was more in the 10 – 30%…

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