The following table combines stripe rust disease readings from the Oregon Statewide Elite Variety trials and yields of those same varieties at the Pendleton/Ruggs and Hermiston sites. I am highlighting only the most commonly planted winter wheat varieties. The complete results of disease notes and yields from the trials are available online at www.cerealcentral.com. It is interesting to note the different levels of infection at the two different sites.
I have included the 2 and 3 year averages when available – realizing that yields were impacted in 2010 and 2011 by stripe rust. 2009 was a year with low stripe rust levels and it is beneficial to include those yields in the average when available.
While weather conditions may return to drier patterns, researchers in Oregon and Washington have noted that stripe rust races have changed and so long-term we will need to respond also. Fortunately, two years have given our wheat breeders an opportunity to do some serious selections for stripe rust resistance but it will take a few years to reap the benefits and bring those selections into our production system.
My CerealCentral website and August Newsletter provide more in depth information for your planning purposes. Enjoy!!
|Winter Wheat Stripe Rust Infection vs. Yield Comparison, 2011|