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Denomination: 'Mimi'
Botanical Name: Solanum tuberosum
Applicant/Holder: Caithness Potato Breeders Ltd.
Brigade House, Brigade Street
United Kingdom
Breeder: Jack Dunnett, Caithness, United Kingdom
Agent in Canada: Solanum International Inc.
4 Legend Trail
Stony Plain, Alberta
T7Z 0B1
Tel: 780-963-4507
Application Date: 2006-07-14
Application Number: 06-5548
Grant of Rights Date: 2012-02-22
Certificate Number: 4279
Grant of Rights Termination Date: 2030-02-22

Variety Description

Variety used for comparison: 'Norland'

Summary: The plants of 'Mimi' are shorter than the plants of 'Norland'. The stem of 'Mimi' has a high to very high extent of anthocyanin colouration while the stem of 'Norland' has a medium extent of anthocyanin. The frequency of flowering is absent or very low for 'Mimi' while it is medium for 'Norland'. The tuber of 'Mimi' has light yellow flesh while the tuber of 'Norland' has white flesh. The light sprout of 'Mimi' is small is size while the light sprout of 'Norland' is medium in size. The base of the light sprout of 'Mimi' has a medium proportion of blue in the anthocyanin while the light sprout of 'Norland' has an absent or low proportion of blue in the anthocyanin at the base.


PLANT: semi-upright growth habit, leaf type foliage structure, mid-season maturity

STEM: high to very high extent of anthocyanin colouration located along entire stem

LEAVES: small, closed silhouette, medium presence of secondary leaflets, medium to dark green, high extent of anthocyanin colouration on midrib of upper side, medium intensity of anthocyanin colouration on midrib of upper side, low frequency of coalescence of terminal and lateral leaflets
SECOND PAIR OF LATERAL LEAFLETS: large, narrower than long width in relation to length
LEAFLETS: strong waviness of margin, deep veins, medium glossiness on upper side, no pubescence on blade at apical rosette

INFLORESCENCE: absent or very low frequency of inflorescences per plant

TUBER: short oval, light yellow flesh
TUBER EYES: medium depth
TUBER SKIN: red, red at base of eye

LIGHT SPROUT: small, ovoid, low number of root tips, short lateral shoots
LIGHT SPROUT BASE: strong anthocyanin colouration, medium proportion of blue in anthocyanin colouration, sparse pubescence
LIGHT SPROUT TIP: medium in size in relation to base, closed habit, medium anthocyanin colouration, sparse pubescence.

Origin & Breeding History: The variety 'Mimi' originated from a cross between 'Celine' and 'Thurso', made at Clevnagreen, Freswick, Caithness, United Kingdom in 1995. The variety was selected from the F1 cross and a phenotypic recurrent selection technique was utilized in its development.

Tests & Trials: Trials for 'Mimi' were conducted during the summer of 2010 in Drummond, New Brunswick. Plots consisted of one row with a row length of 18.5 meters and a row spacing of 90 cm. Plants were spaced 30 cm apart within the row. There were 60 plants per variety in the trial. Measured characteristics were based on ten measurements.

Comparison table for 'Mimi' with reference variety 'Norland'

Plant height (cm)

  'Mimi' 'Norland'
mean 48 69
std. deviation 3.1 5.4

Click on image for larger view
Potato: 'Mimi' (right) with reference variety 'Norland' (left)

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