Submitted to: American Peanut Research and Education Society Proceedings
Publication Type: Abstract Only
Publication Acceptance Date: 5/23/2016
Publication Date: 12/1/2016
Citation: Chamberlin, K.D., Bennett, R.S., Damicone, J.P. 2016. Release of Lariat Peanut [abstract]. In: Proceedings of the American Peanut Research and Education Society, July 12-14, 2016, Clearwater, FL. 48:158.
Technical Abstract: Lariat is a high-oleic runner-type peanut (Arachis hypogaea L. subsp. hypogaea var. hypogaea) that has enhanced Sclerotinia blight and pod rot tolerance when compared to the cultivar Red River Runner. Lariat (experimental designation ARSOK-R35) is the result of a cross between cultivar Red River Runner X PI 274193 of the USDA germplasm collection. Advanced line disease trials indicated that Lariat averaged only 10% incidence of Sclerotinia blight where Red River Runner averaged 22% and the susceptible runner-type check averaged 51%. Furthermore, Lariat does not exhibit a yield boost or significant reduction in disease incidence upon fungicide application, as does Red River Runner. Thus, Lariat is greatly enhanced in resistance to Sclerotinia blight when compared to Red River Runner and will not require fungicide application to increase yields. These tests also indicate Lariat is enhanced in pod rot resistance. Results from Oklahoma state variety tests demonstrate that Lariat is indistinguishable from Red River Runner with regards to yield and grade, thus maintaining those highly desirable traits. Production of Lariat in fields where Sclerotinia blight is present will increase profits for the grower by $150-$200/A. The purpose for releasing Lariat is to provide peanut producers with a high-oleic runner cultivar that not only has excellent grade and yield, but also offers an outstanding fungal resistance package that will reduce fungicide application and therefore increase producers' profits.