Umatilla Russet Explained

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

Umatilla Russet 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.

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

Notes and References

1. Web site: Umatilla Russet Potatoes Idaho Potato Commission . 2024-03-03 . Idaho® Potato Commission . en.
2. American Journal of Potato Research. 77. March 2000. 2. 83–87. Umatilla Russet: A full season long Russet for processing and fresh market use. 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.. 1874-9380. 10.1007/BF02853734. 42043147.
3. Web site: Eric P. . Eldredge . Clinton C. . Shock . Joey . Ishida . Umatilla Russet Potatoes Compared with Russet Burbank and Shepody, 1997 . Oregon State University. 4 January 2017.
4. Web site: Umatilla Russet / AO82611-7. Potato Variety Management Institute. https://archive.today/20181128192345/http://www.pvmi.org/varieties/Type/Umatilla%20Russet.htm. November 28, 2018. November 28, 2018. live.
5. Web site: Storage Management for Umatilla Russet. University of Idaho. Brandt, Tina L.. Kleinkopf, Gale. Olsen, Nora. Love, Stephen. https://archive.today/20181128192901/https://www.cals.uidaho.edu/edcomm/pdf/BUL/BUL0839.pdf. November 28, 2018. 2003. November 28, 2018. live.