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| Hi Don,
The term "freeze damage" in wheat has many different interpretations, thats why I asked. Here in KY region, spring "freeze damage" occurs about 1 year in every 5. KS/OK has about the same frequency, but i'm not sure about OR.
There are many tools that winter wheat growers can use to help reduce spring freeze damage, but the two best tools are 1) not seeding too early and 2) spreading varietal maturities, planting your fullest maturity varieties first and earliest maturity (and preferably most winter hardy) varieties last, preferably later. For example, here in KY the growers I work with have only planted later maturity varieties so far (October 13th) and we will start seeding earlier maturity varieties over the next week or so. I know of some growers that sowed early maturity varieties 2 weeks ago (and those fields are already up), but they are really playing with fire if we get a late spring freeze next spring.
Below is an important example to illustrate the paragraph above (from April 2007) where a late spring freeze event occurred from OK/KS all the way east to KY/TN. During the spring of 2007, the later maturities (especially the ones which were seeded later) escaped most of the damage, while the earliest maturity varieties (especially the ones seeded early) suffered the most damage.
http://talk.newagtalk.com/forums/thread-view.asp?tid=19771&mid=1342...
Phil N
http://www.needhamag.com
Visit our new wheat management discussion group at http://www.wheatworld.net
Edited by Phil N 10/14/2011 07:23
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Winter wheat tillering and phyllochron units?
