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Seed Treatment Comparison on Colter Barley

Davern Riggers, Carrey Newman, Bill Flory, John Herman
with Great Western Malting Co.; Larry Smith, Nez Perce Co. Extension

Objective

Compare Vitavax 200 seed treatment versus Baytan seed treatment at four locations.

Location: Melrose, Cavendish, Winchester, and Genesee, Idaho
Annual precipitation: Range: 14 to 25 inches over locations
Rotation: Wheat/barley or wheat/barley/pea

Treatments

Vitavax 200
Baytan

Comments

Baytan's systemic activity will curtail stripe rust race 24 for six weeks after emergence. It is an inexpensive first line of defense, since we have no resistant varieties available to date. This data will be important when stripe rust race 24 becomes epidemic. The main question is whether Baytan reduces tillering and/or reduces yield. There were no significant disease or insect problems in the tests. Drought in June and July reduced yields and grain quality. One replication was placed at each location using Colter spring malting barley.

Data

Yield of Colter barley, lb/ac

Treatment Rep 1 Rep 2 Rep 3 Rep 4 Average

Vitavax 2464 4104 2376 3268 3053a

Baytan 2368 4408 1945 3420 3035a

LSD (5%) 510

CV 7.5%

Conclusion

Across the four locations there were no significant differences at the 5% confidence level for either grain yield or number of tillers. Test weight and protein were also not different.

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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