CULTIVAR 31 JOURNAL OF PLANT REGISTRATIONS Registration of ‘TUFRunner ‘297’ ’ Peanut B. L. Tillman* Copyright © Crop Science Society of America. All rights reserved. Journal of Plant Registrations 12:31–35 (2018). doi:10.3198/jpr2017.02.0007crc Received 3 Feb. 2017. Accepted 4 Apr. 2017. Registration by CSSA. 5585 Guilford Rd., Madison, WI 53711 USA *Corresponding author (btillman@uf.edu). Abstract ‘TUFRunner ‘297’ ’ (Reg. No. CV-135, PI 674183) is a large-seeded, high-oleic, runner market-type peanut (Arachis hypogaea L. subsp. hypogaea var. hypogaea) cultivar developed by the University of Florida, Florida Agricultural Experiment Station, North Florida Research and Education Center near Marianna, FL. It was tested under the experimental designation UF12303 and was approved for release in 2014. TUFRunner ‘297’ has a semiprostrate growth habit, with a tall and prominent center stem and medium green leaves. The testa of TUFRunner ‘297’ seed are tan in color, and the seeds are slightly larger than those of ‘Georgia-06G’, the dominant cultivar in the southeastern United States (83.7 vs. 76.7 g 100 seed −1 , P < 0.0001). TUFRunner ‘297’ was released for its pod yield potential, grading potential, disease resistance, and high-oleic oil chemistry. Over the 6-yr period from 2010 to 2015, in three Florida locations, TUFRunner ‘297’ had higher pod yield (7270 vs. 6890 kg ha −1 , P = 0.004) than Georgia-06G. The total sound mature kernels grade of TUFRunner ‘297’ was slightly less than that of Georgia-06G (77.9 vs. 79.4%, P < 0.0001). TUFRunner ‘297’ also has the beneft of high oleic oil chemistry, in which its oil is 76.6% oleic fatty acid compared with 60.8% for Georgia-06G (P < 0.001). TUFRunner ‘297’ combines excellent agronomic, grade, disease, and oil chemistry traits and should be benefcial to farmers and manufacturers of peanut foods. Dep. of Agronomy, North Florida Research and Education Center, Institute of Food and Agricultural Sciences, Univ. of Florida, 3925 Highway 71, Marianna, FL 32446. T he high-oleic trait was frst reported in the peanut (Ara- chis hypogaea L. subsp. hypogaea var. hypogaea ) breeding line F435 by Norden et al. (1987). It results in a sig- nifcant reduction in the proportion of linoleic fatty acid, from ~20% in normal peanuts to <3% in high-oleic types. Concomi- tantly, the proportion of oleic fatty acid increases from ~60% in normal oleic types to ~80% in high-oleic types. Although the high-oleic peanut trait was discovered over three decades ago, cultivars carrying the trait have yet to become commonplace in the market. Te confectionery food industry, which uses pea- nuts in candy bars and other peanut-based snacks, would ben- eft from the high-oleic trait because of the extended shelf life it afords. Studies have shown that the high-oleic trait reduces the rate of oxidation of peanuts by up to tenfold compared with normal oleic peanuts and therefore extends the product shelf life (Braddock et al., 1995; Mozingo et al., 2004). Similarly, high- oleic peanut oil showed superior oxidative stability to normal peanut oil. O’Keefe et al. (1993) found that peroxide values of high-oleic peanut oil remained below 10 mmol kg −1 for 550 h of heating to 80 C compared to normal oleic oil, which reached a peroxide value of 10 mmol kg −1 afer only ~25 h of heating. Te peanut industry, largely driven by the manufacturers of peanut candies and whole peanuts, has been transitioning to high-oleic peanuts, thus driving the need for agronomically competitive cultivars with high-oleic oil chemistry. Approximately 90% of the peanuts produced in the southeastern United States are large seeded (>70 g 100 seed −1 ) and have normal oleic chemistry. ‘TUFRunner ‘297’ ’ (Reg. No. CV-135, PI 674183) peanut cultivar was released to help meet the need for high-oleic culti- vars. It was developed at the North Florida Research and Educa- tion Center (NFREC) near Marianna, FL, and released by the University of Florida, Florida Agricultural Experiment Station. It was tested under the experimental designation UF12303 and was approved for release in 2014. Methods TUFRunner ‘297’ was developed from a cross between the cultivar ‘Florida-07’ and a high-oleic University of Florida Abbreviations: NFREC, North Florida Research and Education Center; PSREU, Plant Science Research and Education Unit; PVP, Plant Variety Protection; TSMK, total sound mature kernels; UPPT, Uniform Peanut Performance Tests; WFREC, West Florida Research and Education Center. Published online January 18, 2018