A Parkland seed potato variety with excellent virus resistance

Rokok Lenz Family


The Roko is a mid to late maturing fresh market variety with good yields.

Roko tubers are uniform, oval round shaped and have shallow eyes. The skin is smooth, deep red in colour and the flesh colour is white. Cooking type is rather floury and the dry matter content is moderate. Roko has excellent virus resistance.

  • Market outlets: pre-pack, fresh market
  • Maturity: mid to late
  • Average yield: very good
  • Crossing: Alwara x MA81-0536
Roko Parkland 2022
Canada Roko


  • Tuber shape: oval round
  • Uniform of shape: uniform
  • Eye depth: shallow
  • Skin color: red
  • Flesh color: white
  • Dry matter test: moderate
  • Dry matter percent: 22.7


  • Dormancy: long
  • Tuber number: average
  • Resistance to damage: good resistance
  • Resistance to bruising: good resistance
  • Secondary growth: not susceptible
  • Flower colour: purple
  • Fusarium (Dry Rot): good resistance

Disease resistance

  • Late blight (foliage blight): somewhat resistant
  • Common scab: somewhat susceptible
  • Virus PVV: excellent resistance
  • Tuber blight: moderate resistance
  • PCN - Ro1 & Ro4: resistant
  • Blackleg: moderate resistance
  • Virus Yntn: good resistance


Excellent resistance to some viruses.

Rokok Lenz Family
Foto Adam Los

Would you like to know more about Roko?

Parkland Potato Varieties goes beyond just supplying high-quality seed potatoes like Roko. We are involved with our customers and provide comprehensive advice in several areas. We have innovative varieties, extensive quality assurance, and are committed to fast and reliable delivery in Northern America.

If you have a specific question or would like to know what Parkland Potato Varieties can do for you, please feel free to contact us.

Adam Nelubowich

Sales and Marketing