Results In From 2012 WCSIA Variety Trials


BISMARCK, N.D. – This year’s winter wheat variety trials show that early summer heat may have done more good than harm for this year’s crop in North Dakota and South Dakota. According to Ducks Unlimited Agronomist Steve Dvorak, abnormally warm temperatures in June and July did suppress some winter wheat yield in the 2012 Winter Cereals: Sustainability in Action test plots, but yields were still well above average.

“The results suggest the early heat stress did more to help with protein deposition than it did to limit yields,” Dvorak said. “The combination of high yields and protein also suggests that more nitrogen was mineralized from soil organic matter than is typical.”

Dvorak explained that the increased nitrogen availability was likely due to a combination of the relatively warm soil temperatures through the winter months, the early breaking of spring and the continued above-normal temperatures extending throughout the summer.

“With the heat, early varieties generally out-performed later varieties in all areas, except the extreme northeastern part of North Dakota,” he said.

The winter wheat plots also had very little disease pressure this year from tan spot or head scab. “Varieties with good ‘disease packages’ were not as dominant as they have been the last few years,” Dvorak said. “However some varieties, such as CDC Falcon, that normally have not been as competitive because of susceptibility to disease, had resurgence in performance this year.”

More test plot information available at

About Winter Cereals: Sustainability in Action
With a shared vision of sustaining cereals agriculture, Winter Cereals: Sustainability in Action is a unique collaboration between Ducks Unlimited, Bayer CropScience, regional universities and Winfield Solutions. It embraces ongoing improvement of agriculture productivity through research and development in the Prairie Pothole Region, while improving the habitat important to North America’s waterfowl and other wildlife.

For more information on WCSIA, visit

About Ducks Unlimited
Ducks Unlimited is the world’s largest nonprofit organization dedicated to conserving North America’s continually disappearing waterfowl habitats. Established in 1937, DU is celebrating its 75th anniversary this year, with special events, projects and promotions across the continent. Ducks Unlimited has conserved more than 12 million acres thanks to contributions from more than a million supporters across the continent. Guided by science and dedicated to program efficiency, DU works toward the vision of wetlands sufficient to fill the skies with waterfowl today, tomorrow and forever. For more information on our work, Connect with us on our Facebook page at, follow our tweets at and watch DU videos