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Cerata KWS

Potato

Denomination: 'Cerata KWS'
Botanical Name: Solanum tuberosum
Applicant/Holder: STET Holland B.V.
P.O. Box 83
Emmeloord
8300 AB
Netherlands
Breeder: KWS Potato B.V., Emmeloord, Netherlands
Agent in Canada: Solanum International Inc.
4 Legend Trail
Stony Plain, Alberta
T7Z 0B1
Canada
Tel: 780-963-4507
Application Date: 2019-04-29
Application Number: 19-9812

Variety Description

Varieties used for comparison: 'Rosi' and 'Mozart'

Summary: The lightsprout of 'Cerata KWS' is small whereas that of 'Rosi' is medium sized. The base of the lightsprout of 'Cerata KWS' has a medium to strong intensity of anthocyanin colouration whereas that of 'Rosi' has a strong to very strong intensity of anthocyanin colouration. The base of the lightsprout for 'Cerata KWS' has dense pubescence whereas the base of the lightsprout of 'Rosi' has sparse pubescence and that of 'Mozart' has a medium density of pubescence. The plants of 'Cerata KWS' have an absent or very low frequency of coalescence of the terminal and lateral leaflets whereas the plants of 'Rosi' have a low frequency of coalescence of the terminal and lateral leaflets. The plants of 'Cerata KWS' are taller than the plants of the reference varieties. The shape of the tuber of 'Cerata KWS' is round whereas it is short oval to oval for 'Rosi' and short oval for 'Mozart'. The tuber of 'Cerata KWS' has white flesh whereas the tuber of 'Rosi' has cream coloured flesh and that of 'Mozart' has medium yellow flesh.

Description:

LIGHTSPROUT: small, ovoid, medium to many root tips, short lateral shoots
LIGHTSPROUT BASE: medium to strong intensity of anthocyanin colouration, absent or low proportion of blue in anthocyanin colouration, dense pubescence
LIGHTSPROUT TIP: small to medium sized in relation to base, closed habit, weak to medium intensity of anthocyanin colouration, sparse pubescence

PLANT: foliage structure is intermediate to leaf type where foliage is half open to closed and stems are partly visible to hardly or not visible, semi-upright growth habit, matures late in the season

STEM: high extent of anthocyanin colouration along entire stem

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

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

TUBER: round, white flesh
TUBER EYE: shallow, yellow at base
TUBER SKIN: red

Origin & Breeding History: 'Cerata KWS' (experimental designation KWS 06-125) originated from a cross between 'Aladine', as the female parent, and 'Mozart', as the male parent, conducted in 2006 at the KWS Potato B.V. breeding station in Noord Oost Polder, Netherlands. In 2006, the seed resulting from the cross was sown in the greenhouse. The resulting tubers were harvested and planted in the field in 2006 in Noord Oost Polder, Netherlands. 'Cerata KWS' was selected in 2006 based on negative mass selection for agronomic characteristics and disease resistance.

Tests & Trials: The comparative trial for 'Cerata KWS' was conducted by Global Agri Services Inc. during the 2019 growing season in Drummond, New Brunswick. The trial consisted of a single, 21 metre long row per variety. Each row contained 70 plants spaced 0.3 metres apart with an inter-row spacing of 0.9 metres. Measurements were taken from 10 plants, or 10 parts of plants, of each variety. The mean differences were significant at the 5% probability level based on a paired Student's t-test.


Comparison table for 'Cerata KWS' with reference varieties 'Rosi' and 'Mozart'

Plant height (cm)

  'Cerata KWS' 'Rosi' 'Mozart'
mean 57.9 36.5 33.0
standard deviation 1.9 3.1 3.1

Click on image for larger view
Cerata KWS
Potato: 'Cerata KWS' (left) with reference varieties 'Mozart' (centre) and 'Rosi' (right)

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