Lariat is the result of a cross made in 2006 between the cultivar Red River Runner and U.S. germplasm collection PI 274193. Early generations of plant selections were made based on disease resistance, growth habit, potential yield and grade. Lariat (ARSOK-R35) was identified as having outstanding grade, yield, oil quality and disease resistance and was entered into advanced line disease, state variety trials and the national Uniform Peanut Performance Test (UPPT) in 2012.
Lariat was entered into advanced, managed peanut variety trials conducted in three Oklahoma counties (Beckham, Caddo and Custer/Blaine from 2012-2014, and Caddo, Custer and Tillman Counties in 2015). Results from those trials show no significant differences between Red River Runner and Lariat over the four year period with regards to yield and grade. However, when disease pressure is present, Lariat emerges as a clear leader. In un-managed trials, Lariat demonstrates excellent resistance to Sclerotina blight (10% incidence compared to 23% for Red River Runner), and to pod rot (0.8% compared to 3 % for Red River Runner. Fungicide application to fields of Lariat does not produce a yield boost response and thus is not necessary for disease management.
Lariat is high oleic with an average O/L ratio of 21:1. Lariat has a flavor profile similar to that of Red River Runner, with a roasted peanut score of 5.8. Total fat content of Lariat averaged 46.0 % and the sugar content averaged 5.0%, similar to other runner peanut varieties.
Lariat plants have a typical runner-type growth habit and mature at 140 DAP. Pods of Lariat are typically 2 seeded. Lariat shells at 78% and produces 47% ELKs. Seed of Lariat are tan in color with a seed weight of 68g/100. Lariat averages 555 seed/lb.
While delayed germination has been a problem documented for Red River Runner, Lariat demonstrates NO delayed germination.
The release of Lariat peanut offers producers an improved replacement for Red River Runner that retains the excellent yield and grade properties, but that demonstrates no delayed seed germination and has a greatly improved fungal disease package that requires no fungicide application. Producers of Lariat (versus those of Red River Runner) will save $150-200/A in disease management costs.
Lariat was developed with financial support from the USDA-ARS, the Oklahoma Agricultural Experiment Station and the Oklahoma Peanut Commission. Mention of trade names or commercial products in this article is solely for the purpose of providing specific information and does not imply recommendation or endorsement by the U.S. Department of Agriculture. USDA is an equal opportunity provider and employer.