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Scrivjean

Rose

Denomination: 'Scrivjean'
Trade name: Oso Easy Honey Bun
Botanical Name: Rosa
Applicant/Holder: Spring Meadow Nursery, Inc.
12601 120th Avenue
Grand Haven, Michigan
49417
United States of America
Breeder: Leonard William Scrivens, Kidderminster, United Kingdom
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Canada
Tel: 519-317-7511
Application Date: 2008-09-30
Application Number: 08-6439
Grant of Rights Date: 2010-08-27
Certificate Number: 3915
Date rights surrendered: 2017-08-27

Variety Description

Variety used for comparison: 'Horcoherent' (Oso Easy Peachy Cream)

Summary: 'Scrivjean' has more petals than 'Horcoherent'. The lower part of the flower of 'Scrivjean' is flattened convex in profile whereas it is concave to flat on 'Horcoherent'. 'Scrivjean' has medium flower fragrance whereas it is absent or very weak in 'Horcoherent'. The main colour of the petals of 'Scrivjean' are light red pink whereas they are orange to orange pink on 'Horcoherent'. The secondary colour of the petals of 'Scrivjean' is light yellow distributed at the base whereas it is orange pink distributed mainly at the marginal zone on 'Horcoherent'.

Description:

PLANT: shrub rose, intermediate growth habit
YOUNG SHOOT: weak anthocyanin colouration
PRICKLES: few, predominantly reddish in colour

LEAF: medium green, anthocyanin colouration present on new leaves, strong glossiness on upper side, weak undulation of margin
TERMINAL LEAFLET: medium elliptic to ovate shape of blade, obtuse base, acuminate apex

FLOWERING: few flowering laterals per shoot, few flowers per flowering lateral
FLOWER BUD: medium ovate shape in longitudinal section
FLOWER: semi-double, yellow blend colour group, yellow at centre, medium density of petals, irregularly rounded shape, flat profile of upper part, flattened convex profile of lower part, medium fragrance, absent to very weak sepal extensions

PETAL: obovate shape, absent or very weak incisions, weak reflexing of margin, weak undulation of margin
INNER SIDE: two colours, mainly light red pink (RHS 38D) with slightly darker light red pink (RHS 38C) at margins when newly opened, light red pink (RHS 36B-C) with pink blush (RHS 38C) at margin when fully opened, light yellow (RHS 4D) at base, small light yellow basal spot (RHS 7C-D)
OUTER SIDE: mainly yellow green with light red pink (RHS 36B) at margin
OUTER STAMEN: filament predominantly orange fading to medium yellow

Origin & Breeding History: 'Scrivjean' originated as the result of a cross between 'Noatraum' as the female parent and 'Shine On' as the male parent. The cross was conducted in June 1995 in Kidderminster, England with the resulting variety selected in June 1996. Selection criteria included growth habit, attractive glossy foliage, flower colour and form, few thorns and good disease resistance. Asexual reproduction by budding and cuttings was first carried out in 1997 in Kidderminster, England.

Tests & Trials: Test and trials were conducted in the field during the summer of 2009, in St. Thomas, Ontario. The trial included 8 plants each of the candidate and reference varieties. Rooted plants were transplanted to the field in May 2007 spaced 60 cm apart, with rows 90 cm apart. All observations and measurements were taken on plants on September 23, 2009. All colour measurements were made using the 2001 Royal Horticultural Society colour chart.


Comparison tables for 'Scrivjean' with reference variety 'Horcoherent'

Plant: height during second flush (cm)

  'Scrivjean' 'Horcoherent'
mean 43.6 29.5
std. deviation 9.74 6.00

Leaf: length (cm)

  'Scrivjean' 'Horcoherent'
mean 9.2 7.5
std. deviation 0.91 0.79

Leaf: width (cm)

  'Scrivjean' 'Horcoherent'
mean 5.2 4.2
std. deviation 0.67 0.43

Flower: number of petals

  'Scrivjean' 'Horcoherent'
mean 17.7 12.6
std. deviation 1.49 1.78

Petal: colour of inner side (RHS)

  'Scrivjean' 'Horcoherent'
main-newly opened 38D with 38C at margin 29B-C with 38A at margin, fading towards base
main-fully opened 36B-C with pink blush at margin 38C blend of 29C and 27A
secondary 4D 33D
basal spot 7C-D 3B

Petal: colour of outer side (RHS)

  'Scrivjean' 'Horcoherent'
main 4C with 36B at margin 10C

Click on image for larger view
Scrivjean
Rose: 'Scrivjean' (left) with reference variety, 'Horcoherent' (right)

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