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On-farm Winter Wheat Variety Trials In Oregon

Bruce and Helle Ruddenklau, Bob Barnes, Bill Guthrie, Mike Bernards, Alan Klages,
Mark Hales, Mary Ann Hill, Bill Miller, Steve Johnson, Van and Tom Rietmann,
Dean Nichols, Mike Weimer, M&M Ranch, and Jim Bird
in cooperation with Susan Aldrich-Markham, Mylen Bohle, Gordon Cook, Gale Gingrich, Sandy Macnab,
Phil Nesse, Roland Schirman, and Mike Stoltz
with coordination by Russ Karow

Objective

To test performance of newer winter wheat varieties across Oregon using farm scale plots and field equipment

Growers, Location and Conditions:

Growers City County Irrigation

Bruce and Helle Ruddenklau Amity Yamhill No

Bob Barnes Salem Marion No

Bill Guthrie Powell Butte Crook Yes

Mike Bernards McMinnville Yamhill No

Alan Klages Joseph Wallowa Yes

Mark Hales Pendleton Umatilla No

Mary Ann Hill Pendleton Umatilla No

Bill Miller Dufur Wasco No

Steve Johnson The Dalles Wasco No

Van and Tom Rietmann Condon Gilliam No

Dean Nichols Dayton, WA Columbia, WA No

Mike Weimer Arlington Gilliam No

M&M Ranch Wasco Sherman No

Jim Bird Grass Valley Sherman No

Cooperating County Agents:

Susan Aldrich-Markham Yamhill

Mylen Bohle Crook

Gordon Cook Wallowa

Gale Gingrich Marion

Sandy Macnab Wasco/Sherman

Phil Nesse Gilliam

Roland Shirman Columbia, WA

Mike Stoltz Umatilla

Growers were provided with 50-80 pounds of seed of each of six varieties - Gene, MacVicar, Madsen, Rod, Rohde and Stephens. Additional varieties of local interest were added to the trial at some sites. Seeding was done by growers, in many cases with county agent assistance. Plots ranged in size from 8-20 feet wide by 300-1500 feet long. Single replications were planted at each site. Plots were harvested by growers with grain weighed in weigh wagons, on truck scales or on farm scales. Grain samples were submitted to the OSU Extension Cereals Project for test weight and protein analysis.

Seed donations for 1994 trials were made by Eric and Marne Anderson, Ione, OR, and Pendleton Grain Growers, Pendleton, OR. Their support made this testing effort possible and is greatly appreciated.

Comments:

Trial results show that no one variety is superior to others over all locations. Performance varies significantly. Based on an over-sites analysis, Rod is the only variety that showed statistically significant superior performance. Results are in general agreement with small plot test data. Trials at many locations were used for field tours.

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Hans Kok, WSU/UI Extension Conservation Tillage Specialist, UI Ag Science 231, PO Box 442339, Moscow, ID 83844 USA Redesigned by Leila Styer, CAHE Computer Resource Unit; Maintained by Debbie Marsh, Dept. of Crop & Soil Sciences, WSU