The British Potato Variety Database

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Sierra

Scottish Seed Stocks  
English Seed Register
ParentageLR3 x D42-8
BreederCygnet PB Ltd
Breeder's AgentCygnet PB Ltd
Plant Breeders Rights (expire)2021

Trials have found good resistance to potato leafroll virus. This variety has low resistance to skin spot.
Sierra
Sierra
  

Tuber characteristics
Smoothness of skin Smooth
Shape of tuber Short - oval
Depth of eyes Shallow - medium
Colour of skin White
Colour of flesh Cream
  
Botanical description
Maturity Early Maincrop
Height of plants Short - medium
Frequency of berries Medium
Colour of flower Blue violet
Colour of base of lightsprout Blue

Resistance to Damage, Pests and DiseasesLow.......High
Dry rot ( Fusarium coeruleum ) 
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6
   
Late blight on foliage ( Phytophthora infestans )  
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4
     
Late blight on tubers ( Phytophthora infestans ) 
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4
     
Skin spot ( Polyscytalum pustulans ) 
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2
       
Blackleg ( Pectobacterium atrosepticum )  
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6
   
Common scab ( Streptomyces scabiei ) 
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4
     
Potato Leafroll Virus 
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9
Potato Virus Yo  
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4
     
Bruising 
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6
   

Results of National List and Potato Council Independent Variety Trials