The British Potato Variety Database

Tresdale

Scottish Seed Stocks

English Seed Register

Parentage

Harmony x 6RE98

Breeder

Dr J Dunnett, Caithness Varieties Ltd

Tresdale is an early maincrop variety. This variety is suitable for both salads / punnets and table use. Tubers have good resistance to bruising and splitting. Trials have found good resistance to blackleg and potato leafroll virus.. This variety has low resistance to dry rot (Fusarium sulphureum) . Tests for resistance to potato cyst nematode demonstrated partial resistance to Globodera rostochiensis Ro1 and susceptibility to Globodera pallida Pa 2/3, 1.

Tuber characteristics
Shape of tuber		Oval
Depth of eyes		Very shallow - shallow
Colour of skin		White
Colour of flesh		Cream

Botanical description
Maturity		Early Maincrop
Height of plants		Medium
Frequency of berries		Absent
Colour of flower		Red violet
Colour of base of lightsprout		Pink

Resistance to Damage, Pests and Diseases	Low	.	.	.	.	.	.	.	High
Black dot ( Colletotrichum coccodes )	.	.	.	.	.	.	7
Dry rot ( Fusarium coeruleum )	.	.	.	.	.	6
Dry rot ( Fusarium sulphureum )	1
Late blight on foliage ( Phytophthora infestans )	.	.	.	4
Late blight on tubers ( Phytophthora infestans )	.	.	.	.	5
Powdery scab ( Spongospora subterranea )	.	.	.	4
Silver scurf ( Helminthosporium solani )	.	.	.	.	.	.	.	8
Skin spot ( Polyscytalum pustulans )	.	.	.	.	.	.	.	8
Blackleg ( Pectobacterium atrosepticum )	.	.	.	.	.	.	7
Common scab ( Streptomyces scabiei )	.	.	3
Potato Cyst Nematode ( Globodera pallida Pa 2/3, 1 )	.	2
Potato Cyst Nematode ( Globodera rostochiensis Ro1 )	.	.	.	4
Potato Leafroll Virus	.	.	.	.	.	.	7
Potato Virus Yo	.	.	.	4
Bruising	.	.	.	.	.	6
Splitting	.	.	.	.	.	.	7

Results of National List and Potato Council Independent Variety Trials