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Denomination: 'Ladorée'
Botanical Name: Solanum tuberosum
Applicant/Holder: Ferme Gilles-Pierre Côté
399 Ch. 1er Rang
Drummond, New Brunswick
E3Y 2S8
Breeder: Gilles-Pierre Côté, Ferme Gilles-Pierre Côté, Drummond, New Brunswick
Application Date: 2007-02-19
Application Number: 07-5735
Grant of Rights Date: 2009-05-04
Certificate Number: 3479
Date rights revoked: 2020-05-04

Variety Description

Variety used for comparison: 'Brigus'

Summary: 'Ladorée' has a semi-upright growth habit while it is upright for 'Brigus'. 'Ladorée' has a shorter plant height and a smaller leaf than 'Brigus'. The flowering profusion is absent or very low for 'Ladorée' while it is high for 'Brigus'. 'Ladorée' has a strong anthocyanin colouration of the flower bud while it is weak for 'Brigus'. The anthocyanin colouration of the peduncle is absent or very weak for 'Ladorée' while it is strong for 'Brigus'. 'Ladorée' has ovoid light sprouts while they are narrow cylindrical for 'Brigus'.


PLANT: semi-upright growth habit, intermediate type foliage structure
STEM: medium anthocyanin colouration distributed on the bottom 2/3, medium thickness, nodes with absent or very low swelling

LEAVES: light to medium green, closed to intermediate silhouette, medium anthocyanin colouration on upper side of rachis and petiole, shallow veins, absent or very weak waviness of margin, medium glossiness on upper side, pubescence present on leaves of apical rosette, medium presence of secondary leaflets
TERMINAL LEAFLET: medium ovate shape, acute to acuminate tip, cordate base, absent or very low frequency of coalescence with lateral leaflets
LATERAL LEAFLET: large, narrow ovate shape, acute tip, cordate base

INFLORESCENCE: absent or very low flowering profusion, small, flower buds drop readily, strong anthocyanin colouration of flower bud
COROLLA: red-violet, medium size, prominant star, strong anthocyanin colouration of inner side and absent or very weak anthocyanin colouration on peduncle

TUBER: round
TUBER SKIN: blue parti-coloured, blue at base of eye, rough and flaky texture
TUBER EYES: shallow, even distribution, slight prominence of eyebrows
TUBER FLESH: medium yellow, no secondary colour

LIGHT SPROUT: large, ovoid shape, medium number of root tips, short lateral shoots
BASE: strong anthocyanin colouration, medium proportion of blue in anthocyanin colouration, dense pubescence
TIP: smaller than base in size, intermediate habit, medium anthocyanin colouration, dense pubescence

Origin & Breeding History: 'Ladorée' originated from a single plant discovered in a field of 'Kennebec' in Drummond, New Brunswick, on October 6, 1989.

Tests & Trials: Trials for 'Ladorée' were conducted in Drummond, New Brunswick in 2007. All entries were planted in single-row plots. Plots consisted of rows 22 metres long with 30 cm in row spacing between plants and spacing between rows of 91 cm. Measured characteristics were based on 10 measurements. Colour determinations were made using the 1986 RHS colour chart.

Comparison tables for 'Ladorée' with reference variety 'Brigus'

Plant height (cm)

  'Ladorée' 'Brigus'
mean 54.5 69.7
std. deviation 3.7 3.0

Leaf length (including petiole) (cm)

  'Ladorée' 'Brigus'
mean 27.1 34.9
std. deviation 8.7 2.1

Leaf width (cm)

  'Ladorée' 'Brigus'
mean 15.9 22.7
std. deviation 5.1 1.7

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

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