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Clairette

Potato

Denomination: 'Clairette'
Botanical Name: Solanum tuberosum
Applicant/Holder: Germicopa Breeding
Allée Loeiz Herrieu, 1
29334 Cedex
Quimper
France
Breeder: Murielle Brient, Germicopa Breeding, Quimper, France
Agent in Canada: Lavery, De Billy, S.E.N.C.R.L. - LLP
1, Place Ville Marie, Bureau 4000
Montreal, Quebec
H3B 4M4
Canada
Tel: 514 397-5138
Application Date: 2017-11-17
Application Number: 17-9331
Grant of Rights Date: 2020-03-11
Certificate Number: 6166
Grant of Rights Termination Date: 2040-03-11

Variety Description

Variety used for comparison: 'Bintje'

Summary: The lightsprout of 'Clairette' is ovoid in shape while that of 'Bintje' is spherical. The base of the lightsprout for 'Clairette' has sparse pubescence while that of 'Bintje' has a medium density of pubescence. In relation to the base, the lightsprout tip is small for 'Clairette' while it is medium in size for 'Bintje'. The lightsprout tip for 'Clairette' has an intermediate habit with sparse to medium pubescence while that of 'Bintje' has a closed habit with dense pubescence. The anthocyanin colouration of the stem is of a low extent for 'Clairette' while it is of a medium extent for 'Bintje'. The midrib on the upper side of the leaf for 'Clairette' has anthocyanin colouration of an absent or very low extent with absent or very weak intensity while that of 'Bintje' is of a low extent with weak intensity. The plants of 'Clairette' are shorter than those of 'Bintje'. The plants of 'Clairette' have a low frequency of inflorescences per plant while those of 'Bintje' have a medium to high frequency. The anthocyanin colouration on the inner side of the corolla for 'Clairette' is of a medium to high extent with medium intensity while that of 'Bintje' is of an absent or very low extent with absent or very weak intensity.

Description:

LIGHTSPROUT: medium, ovoid, few root tips, short lateral shoots
LIGHTSPROUT BASE: very strong intensity of anthocyanin colouration, high proportion of blue in anthocyanin colouration, sparse pubescence
LIGHTSPROUT TIP: small in relation to base, intermediate between closed and open habit, strong intensity of anthocyanin colouration, sparse to medium density of pubescence

PLANT: foliage structure is intermediate type where foliage is half-open and stems are partly visible, semi-upright growth habit, matures late to very late

STEM: low extent of anthocyanin colouration halfway up stem

LEAF: medium size outline, intermediate openness, weak to medium presence of secondary leaflets, medium green upper side, absent or very low extent and absent or very weak intensity of anthocyanin colouration of upper side of midrib, absent or very low frequency of coalescence of terminal and lateral leaflets
SECOND PAIR OF LATERAL LEAFLETS: medium size, leaflet is slightly narrower than long
LEAFLET: absent or very weak waviness of margin, shallow to medium depth of veins, medium glossiness on upper side, glabrous blade at apical rosette

PEDUNCLE: absent or very low extent of anthocyanin colouration
INFLORESCENCE: low frequency per plant, small
FLOWER BUD: low extent of anthocyanin colouration
COROLLA: medium size
COROLLA (INNER SIDE): medium to high extent of anthocyanin colouration, medium intensity of anthocyanin colouration, absent or low proportion of blue in anthocyanin colouration

TUBER: short oval, light yellow flesh
TUBER EYE: shallow depth, yellow at base
TUBER SKIN: yellow, develops weak intensity of anthocyanin colouration in reaction to light

Origin & Breeding History: 'Clairette' (experimental designation G03TT007006) originated from the cross between 'Glenna' and 'Emeraude' conducted at Chateauneuf-du-Faou, France in 2002. The resulting seed was grown in a greenhouse. Tubers resulting from the subsequent 3 generations were placed in cold storage and visually assessed before being field planted for seed production. G03TT007006 was identified in 2007 as having passed initial selection criteria and was further assessed for pest resistance, yield, cooking and frying quality, dry matter content, storability and visual impression in France, Italy, United Kingdom, Spain and Germany from 2007 to 2010. In 2011 and 2012, the variety was further assessed as 'Clairette' for yield, agronomic traits, cooking quality and storability.

Tests & Trials: The comparative trial for 'Clairette' was conducted by Global Agri Services Inc. during the 2018 growing season in Drummond, New Brunswick. The trial consisted of a single, 21 metre long row containing 70 plants spaced 0.3 metres apart for each variety. The distance between rows within the trial was 0.9 metres. Observations and measurements were taken from 10 plants, or 10 parts of plants, of each variety. The mean difference was significant at the 5% probability level based on a paired Student's t-test.


Comparison table for 'Clairette' with reference variety 'Bintje'

Plant height (cm)

  'Clairette' 'Bintje'
mean 48.7 52.3
std. deviation 3.0 4.3

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

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