The British Potato Variety Database

Lady Jo

Scottish Seed Stocks

English Seed Register

Parentage

CMK1987.203.014 x VE74-45

Breeder	Meijer Research BV
Breeder's Agent	Potato Innovations Limited
Plant Breeders Rights (expire)	2031

Lady Jo is a specialist crisping variety, with high dry matters and low reducing sugars, ideally suited for mid term production of quality crisps. It has early to medium crop maturity, and will produce moderate to high yields of round uniform tubers with low outgrades. Susceptible to Blackleg, Shows resistance to Dry Rot Fusarium coeruleum . Tests for resistance to potato cyst nematode demonstrated resistance to Globodera rostochiensis Ro1 and susceptibility to Globodera pallida Pa 2/3, 1.

Botanical description
Maturity		Maincrop
Height of plants		Medium - tall
Frequency of berries		Absent
Colour of flower		White
Colour of base of lightsprout		Blue

Resistance to Damage, Pests and Diseases	Low	.	.	.	.	.	.	.	High
Black dot ( Colletotrichum coccodes )	.	.	.	.	.	6
Dry rot ( Fusarium coeruleum )	.	.	.	.	.	.	.	8
Dry rot ( Fusarium sulphureum )	.	.	.	4
Late blight on foliage ( Phytophthora infestans )	.	.	.	4
Late blight on tubers ( Phytophthora infestans )	.	.	.	4
Powdery scab ( Spongospora subterranea )	.	.	.	.	.	.	7
Silver scurf ( Helminthosporium solani )	.	.	.	.	.	.	.	8
Skin spot ( Polyscytalum pustulans )	.	.	.	.	.	.	7
Blackleg ( Pectobacterium atrosepticum )	.	2
Common scab ( Streptomyces scabiei )	.	.	.	.	5
Potato Cyst Nematode ( Globodera pallida Pa 2/3, 1 )	.	.	3
Potato Cyst Nematode ( Globodera rostochiensis Ro1 )	.	.	.	.	.	.	.	.	9
Bruising	.	.	.	.	.	.	7
Splitting	.	.	.	.	.	.	7

Results of National List and Potato Council Independent Variety Trials