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Meijocos

Rose

Denomination: 'Meijocos'
Trade name: Pink Drift
Botanical Name: Rosa
Applicant/Holder: CP Delaware, Inc.
103 Foulk Road, Suite 202
Wilmington, Delaware
19390-0904
United States of America
Breeder: Alain Meilland, Meilland International, Le Luc en Provence, France
Agent in Canada: Variety Rights Management
475 County Road 18
R.R. #2
Oxford Station, Ontario
K0G 1T0
Canada
Tel: 613-258-9015
Application Date: 2010-05-20
Application Number: 10-6991
Grant of Rights Date: 2014-09-17
Certificate Number: 4874
Grant of Rights Termination Date: 2032-09-17

Variety Description

Variety used for comparison: 'Chewground' (Oso Easy Fragrant Spreader)

Summary: The plants of 'Meijocos' are taller than those of 'Chewground'. The leaf of 'Meijocos' is medium sized while that of 'Chewground' is small. The flowering shoot of 'Meijocos' has medium to many flowering laterals with few to a medium number of flowers per lateral whereas that of 'Chewground' has few flowering laterals with very few to few flowers per lateral. The flower of 'Meijocos’ is a semi-double type with a greater number of petals per flower than that of 'Chewground’ which is a single type. The petal of 'Meijocos' is longer than that of 'Chewground'. The inner side of the petal of 'Meijocos' is purple red to dark pink red with no secondary colour whereas that of 'Chewground' is purple red to blue pink with a white secondary colour.

Description:

PLANT: shrub, upright to semi-upright growth habit
YOUNG SHOOT: weak intensity of anthocyanin colouration
STEM: few prickles, reddish

LEAF: medium sized, medium intensity of green on upper side, no anthocyanin colouration, strong glossiness of upper side, very weak to weak undulation of margin
TERMINAL LEAFLET: medium elliptic, rounded base, acute apex

FLOWERING SHOOT: medium to many flowering laterals, few to medium number of flowers per lateral
FLOWER BUD: medium ovate in longitudinal section
FLOWER: semi-double, pink colour group, loose density of petals, round, profile of upper and lower part is flattened convex, absent or weak fragrance
SEPAL: weak extensions
PETALS: no reflexing one-by-one, obovate and obcordate, absent or very weak incision at apex, weak reflexing of margin, weak undulation of margin, small to medium sized, intensity of colour is even, inner side is purple red (RHS N57A) to dark pink red (RHS 52A)
BASAL SPOT ON INNER SIDE: small, white
FILAMENT: medium yellow
SEED VESSEL: very small at petal fall
HIP: pitcher-shaped in longitudinal section

Origin & Breeding History: 'Meijocos' originated from hybridization work conducted by the breeder at Le Luc en Provence, France in June 1997 between the female parent 'Korimro' and the male parent, a proprietary unnamed seedling. In September 2005, 'Meijocos' was selected based on its improved attractive flower colours, spreading ground cover growth habit and attractive foliage.

Tests & Trials: Trials for 'Meijocos' were conducted in an outdoor container trial and then moved indoors during the summer of 2013 at Variety Rights Management, Oxford Station, Ontario. The trial consisted of a total of 10 plants each of the candidate and reference variety. All plants were grown from bare-rooted plants and transplanted into 22 cm pots, spaced 45 cm apart. Observations and measurements were taken from 10 plants of each variety in June 2013. All colour determinations were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.


Comparison tables for 'Meijocos' with reference variety 'Chewground'

Plant height during second flush (cm)

  'Meijocos' 'Chewground'
mean 22.9 18.1
std. deviation 2.96 3.84

Number of petals per flower

  'Meijocos' 'Chewground'
mean 10.0 5.4
std. deviation 1.73 0.79

Petal length (cm)

  'Meijocos' 'Chewground'
mean 2.72 2.38
std. deviation 0.24 0.22

Colour of inner side of petal (RHS)

  'Meijocos' 'Chewground'
main N57A to 52A N66B-C to N66D
secondary N/A N155B

Click on image for larger view
Meijocos
Rose: 'Meijocos'

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Meijocos
Rose: 'Meijocos' (left) with reference variety 'Chewground' (right)

Click on image for larger view
Meijocos
Rose: 'Meijocos' (left) with reference variety 'Chewground' (right)

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