Umatilla Russet

Umatilla Russet (/ˌjuːməˈtɪlə/, YOO-mə-TIL-ə) is a moderately late maturing variety of potato especially suitable for frozen french fries processing.^[1] It was jointly released by the Agricultural Experiment Station of Oregon, Idaho, and Washington and the U.S. Department of Agriculture in 1998.^[2] 'Umatilla Russet' has been equal to or better than Russet Burbank in fry color in Oregon and regional trials.^[3][4] The potato was named by the state of Oregon^[5] after the Umatilla tribe, from which the city of Umatilla also takes its name.

Potato 'Umatilla Russet'
Genus	Solanum
Species	Solanum tuberosum
Cultivar	'Umatilla Russet'

Characteristics

Botanical

• Tuber skin is tan color and russety-like^[2]
• Tubers are long with a tendency for tapered apical ends^[2]
• Flesh is slightly creamy^[2]
• Leaves are dark green, medium pubescence^[2]
• Few (up to 7) flowers per plant^[2]
• Flowers are light purple with a yellow-orange center cone^[2]

Agricultural

• Less susceptible to Verticillium wilt
• Less susceptible to net necrosis
• Resistant to Potato virus X (PVX)
• Expresses foliar symptoms of Potato virus Y (PVY)
• Less susceptible to tuber infection and decay caused by Phytophthora infestans
• More susceptible to blackspot and shutter bruise
• Less susceptible to hollow heart, brown center, growth cracks and sugar ends

References

1. "Umatilla Russet Potatoes | Idaho Potato Commission". Idaho® Potato Commission. Retrieved 2024-03-03.
2. Mosley, A.R.; James, S. R.; Hane, D. C.; Rykbost, K. A.; Shock, C. C.; Charlton, B. A.; Pavek, J. J.; Love, S. L.; Corsini, D. L.; Thornton, R. E. (March 2000). "Umatilla Russet: A full season long Russet for processing and fresh market use". American Journal of Potato Research. 77 (2): 83–87. doi:10.1007/BF02853734. ISSN 1874-9380. S2CID 42043147.
3. Eldredge, Eric P.; Shock, Clinton C.; Ishida, Joey. "Umatilla Russet Potatoes Compared with Russet Burbank and Shepody, 1997". Oregon State University. Retrieved 4 January 2017.
4. "Umatilla Russet / AO82611-7". Potato Variety Management Institute. Archived from the original on November 28, 2018. Retrieved November 28, 2018.
5. Brandt, Tina L.; Kleinkopf, Gale; Olsen, Nora; Love, Stephen (2003). "Storage Management for Umatilla Russet" (PDF). University of Idaho. Archived (PDF) from the original on November 28, 2018. Retrieved November 28, 2018.