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N.C. Porto Rico 198

Porto Rico was the dominant variety in the US in the 1930’s – 1950’s. This release is an improved hill selection with higher beta carotene and a more uniform orange flesh than what was commonly available. It was well liked for the combination of a moist and creamy texture, sweetness and a complex flavor. It has been replaced with higher yielding, shorter season, more disease resistant varieties. 

Skin color: Light orange skin

Flesh color: Light orange flesh

Disease resistance

  • Fusarium wilt: Susceptible
  • Streptomyces soil rot: Susceptible
  • Southern root knot nematode: Susceptible
  • Guava root knot nematode: Resistant

NC State University selection released in 1966

Reference: Pope, Daniel T., and M. W. Hoover. N.C. Porto Rico 198: An Improved Strain of the Porto Rico Sweet Potato Variety. Raleigh, N.C.: Agricultural Experiment Station, North Carolina State University at Raleigh, 1966.

US Plant Patent: Not patented

How to get N.C. Porto Rico 198

Craig Yencho

William Neal Reynolds Distinguished Professor