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Winter Wheat Variety Selection (08/04/16)

Some of the first data from this year’s winter wheat variety trials are now available (see the following table for information from Prosper and Hettinger).

Winter Wheat Variety Selection

Some of the first data from this year’s winter wheat variety trials are now available (see the following table for information from Prosper and Hettinger). Selecting varieties of winter wheat is similar to the selection of spring cereals, with the exception that winter hardiness needs to be considered. This factor is one of the main reasons that we see fairly large variety by environment interactions in winter wheat relative to spring wheat and durum. For this reason, it is not uncommon to see varieties from Canada and Jerry (released by NDSU) being the top performers in a year when there has been significant winter kill and varieties developed for more southern environments doing best in years where there is little or no winter injury. The preliminary results from this year is an example of how “southern” varieties tended to be the top performers. Because of this large variety by environment interaction it is important to use data from as many environments as possible when selecting a winter wheat variety. The NDSU Winter Wheat Selection Guide from last year coupled with preliminary data from this year as it become available can help in that regard. Unfortunately, the availability of certified seed of winter wheat can be somewhat limited and this may ultimately influence variety choice. The Field Seed Directory published by the North Dakota State Seed Department currently lists sources for varieties certified last year and will soon have the list for 2016.

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Joel Ransom

Extension Agronomist for Cereal Crops

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