U.S. patent number PP26,676 [Application Number 13/999,978] was granted by the patent office on 2016-05-03 for rosa hybrida shrub named `austruss`.
This patent grant is currently assigned to DAVID AUSTIN ROSES LTD.. The grantee listed for this patent is David Austin Roses Ltd.. Invention is credited to David J. C. Austin.
United States Patent |
PP26,676 |
Austin |
May 3, 2016 |
Rosa hybrida shrub named `AUStruss`
Abstract
A variety of rose plant of the shrub class, named `AUStruss`.
The `AUStruss` is a variety of rose having medium blooms of a pink
blend, which are double, many-petalled and of a deep cup shape, and
having a strong fruity fragrance coupled with a long vase life
suitable for cut-flower commercial production.
Inventors: |
Austin; David J. C.
(Wolverhampton, GB) |
Applicant: |
Name |
City |
State |
Country |
Type |
David Austin Roses Ltd. |
Albrighton, Wolverhampton |
N/A |
GB |
|
|
Assignee: |
DAVID AUSTIN ROSES LTD.
(Albrighton, Wolverhampton, GB)
|
Family
ID: |
54266322 |
Appl.
No.: |
13/999,978 |
Filed: |
April 11, 2014 |
Prior Publication Data
|
|
|
|
Document
Identifier |
Publication Date |
|
US 20150296673 P1 |
Oct 15, 2015 |
|
Current U.S.
Class: |
PLT/107 |
Current CPC
Class: |
A01H
5/02 (20130101); A01H 6/749 (20180501) |
Current International
Class: |
A01H
5/00 (20060101) |
Field of
Search: |
;PLT/107 |
Other References
PLUTO Plant Variety Database Oct. 9, 2015. p 1. cited by
examiner.
|
Primary Examiner: Para; Annette
Attorney, Agent or Firm: KPPB LLP
Claims
What is claimed is:
1. A new and distinct variety of rose plant of the shrub class
suitable for cut flower production, substantially as herein shown
and described.
Description
Classification: The present invention relates to a new Rosa hybrida
shrub of the market class `English Rose`.
Variety denomination: The new plant has the varietal denomination
`AUStruss`.
ORIGIN OF INVENTION
This invention relates to a new and distinct variety of shrub rose
plant named `AUStruss`, which was originated from the
cross-pollination of the two `unnamed` and unpatented seedlings of
Rosa hybrida.
BACKGROUND OF THE INVENTION
The primary objective of this breeding was to produce an English
Rose having large blooms of a pink blend, which are double,
many-petalled and of a deep cup shape, and having a strong fruity
fragrance coupled with a long vase life suitable for cut-flower
commercial production.
SUMMARY OF THE INVENTION
Among the features which distinguish the new variety from others
presently available and commercial rose cultivars known to the
inventor is the following combination of characteristics: large
blooms having many petals, a long vase life, a strong fragrance and
a pink blend.
Asexual reproduction of the new variety by budding as performed at
Bowling Green Lane in Albrighton, Britain shows that the foregoing
and other distinguishing characteristics come true to form and are
established and transmitted through succeeding asexual
propagations. `AUStruss` may be asexually propagated by budding.
The budding successfully occurred on the plant/rootstock Rosa
`Inermis` for the observed plants.
COMPARISON WITH PARENTS
The seed and pollen parents of `AUStruss` are two unnamed
seedlings. The new rose may be distinguished from its seed parent,
by the following combination of characteristics: the seed parent is
a hybrid tea type seedling and purple color compared with the pink
blend old-fashioned type English Rose flower of `AUStruss`. The new
rose may be distinguished from its pollen parent, by the following
combination of characteristics: the parent is a pink double English
Rose type seedling with fewer petals and a lax growth compared with
the upright growth of `AUStruss`.
COMPARISON WITH THE CLOSEST COMMERCIALLY AVAILABLE CULTIVAR
The closest commercially available cultivars to the new variety are
the `AUSboxer` (U.S. Plant Pat. No. 22,947). The new rose may be
distinguished from the `AUSboxer` variety by the following
combination of characteristics: the `AUSboxer` has fewer petals
when compared with the `AUStruss`. In addition, while the petals of
both have a pink blend, the blend is different with a red-purple
shade being more prevalent in `AUStruss` while a white shade is
more prevalent in `AUSboxer`. Finally, the buds of `AUSboxer` are
more elongated than those of `AUStruss`.
BRIEF DESCRIPTION OF ILLUSTRATION
The accompanying photograph illustrates the new variety and shows
the flowering thereof from bud to full bloom depicted in color as
nearly correct as it is possible to make in a color illustration of
the character. Throughout this specification, color references
and/or values are based upon The Colour Chart of The Royal
Horticultural Society (2001) except where common terms of color
definition are employed.
DESCRIPTION OF THE NEW VARIETY
Observations of budded `AUStruss` specimens were made at the
nursery at David Austin Roses Limited in Albrighton, Wolverhampton,
United Kingdom. The following description is of 6 year-old potted
rose plants of the new variety, as shown in the attached
illustrations. The rose plants, which were observed in the month of
June, were grown indoors in a greenhouse in Albrighton, Britain in
the month of June. Phenotypic expression may vary with
environmental, cultural and climatic conditions, as well as
differences in conditions of light and soil. Flower
characteristics: Blooming habit.--Continuous. The number of blooms
per plant during the growing season is profuse, but there are too
many to count. Bud.--Size: About 2 cm long and 1.7 cm in diameter
when the petals start to unfurl. Form: The bud form is broad based.
Color: When sepals first divide, the bud color is RHS 60B
(red-purple group). When half blown, the upper sides of the petals
are RHS 60D (red-purple group) on the margin and RHS 3D (yellow
group) in the middle, and the lower sides of the petals are RHS 60D
(red-purple group) on the margin and RHS 3D (yellow group) in the
middle. Calyx: Shape: star-shaped when the bloom is open, curling
back. Length: 8.2 cm. Diameter: 8.2 cm. Sepals: Arrangement:
Regular. Color: Upper Surface: RHS 138B (green group). Lower
Surface: RHS 143C (green group). Length: 3.5 cm. Width: between
9-12 mm. Shape: Lanceolate. Surface texture: Upper Surface:
Hirsute. Lower Surface: Glandular. Number: There are 3 lightly
appendaged sepals, and 2 unappendaged sepals with hairy edges.
Receptacles: Color: RHS 144A (yellow-green group). Shape: funnel.
Size: medium, about 1 cm high.times.1.1 cm wide. Surface: Smooth.
Peduncle: Length: medium, averaging about 8 cm. Surface: Glandular.
Color: RHS 144A (yellow-green group). Strength: Strong.
Blooms.--Size: Large, average open diameter is about 9 cm. Borne:
Several together. (Note: the inflorescence when the shrub is
growing naturally may hold between 4 and 6 blooms, and then has a
rounded shape. When grown commercially for cut-flower production
the stems are disbudded to ensure the blooms are grown singly.)
Stems: Strength: Strong, average length is about 60 cm. Diameter: 6
mm. Form: When first open, bloom is cupped. Permanence of bloom:
flattens. Petalage.--Number of petals under normal conditions: 140.
Color: The upper sides of the petals are RHS 65B (red-purple group)
and RHS N155C (white group). The reverse sides of the petals are
RHS 75D (purple group) and RHS 65B (red-purple group). The base of
the petals has a yellow spot (RHS 3D, yellow group) on the inner
side, and RHS 4D (yellow group) on the outer side. Variegations:
Pink blend. Discoloration: The general tonality at the end of the
first day is RHS 65B (red-purple group), and at the end of the
third day is RHS 75D (purple group). With further aging the color
then further changes to RHS N155C (white group). Fragrance: Strong.
Character of fragrance: fruity. Petals.--Texture: Satiny. Size:
Variable: From petals taken from the same 3.sup.rd whorl, the size
varies between: Width: 15-50 mm. Length: 20-53 mm. Surface: Smooth.
Shape: Obovate. (Note: the shape is mainly obovate, but inside the
3.sup.rd outer whorl of petals, many petals are folded to varying
degrees.) Margin: Cuspidate tips with little reflexing of the
margin. Apex Shape: Rounded, with cuspidate tips. Base Shape:
Acute. Form: Incurved. Arrangement: Rosette formation. Petaloids:
Number: about 5. Color: RHS 6D (yellow group). Length: 6 mm. Width:
3 mm. Shape: Oval. Margin: Entire. Persistence: Petals drop off
cleanly before drying. Lastingness: On the plant: not tested. As a
cut flower: About 10 days. Reproductive parts.--Stamens: Number:
6-10. Length: 5 mm. Anthers: Length: 2.5 mm. Color: RHS 14C
(yellow-orange group). Arrangement: Mixed with petaloids.
Filaments: Color: RHS 4A (yellow group). Length: 3 mm. Pollen:
Color: RHS 23A (yellow-orange group). Pistils: Number: 40. Length:
14.5 mm. Styles: Color: RHS 158D (yellow-white group). Length: 14
mm. Stigmas: Color: RHS 3B (yellow group). Length: 0.5 mm. Hips:
None Observed. Plant characteristics: Plant form.--Shrub, English
Rose. Plant growth.--Medium. Age to maturity.--Two years. Mature
plant.--Height: 92 cm. Width: 75 cm. Rootstock.--Rosa `Inermis` for
the observed plants. Foliage.--Number: Leaflets on normal mid-stem
leaves is: mostly 5 and sometimes 7. Size: Medium, about 15 cm
long.times.11 cm wide. Quantity: Abundant. Number of leaves per
flowering stem is: 11. Color: New foliage: Upper side: RHS 144A
(yellow-green group) tinged with RHS 60A (red-purple group) at the
very edges. Lower side: RHS 144A (yellow-green group). Old foliage:
Upper side: RHS 147A (yellow-green group). Lower side: RHS 138A
(green group). Leaflets.--Size: About 6.5 cm long.times.4 cm wide.
Shape: Pointed oval. Base Shape: Rounded. Apex Shape: Acuminate.
Texture: Leathery. Edge: Serrated. Serrations: Single. Petiole:
Color: RHS 137A (green group). Length: 4 cm. Width: 2 mm. Surface
Texture: Prickly. Petiole Rachis: Color: RHS 143C (green group) on
underside and RHS 137C (green group) on upperside. Underside: with
prickles. Stipules: Length: 2.9 cm, glandular. Color: RHS 143C
(green group). Auricle: Shape: Lanceolate. Length: 5 mm. Width: 2
mm. Color: RHS 143A (green group). Vein Color: Same as leaf color.
Venation Pattern: Reticulate. Wood.--New Wood: Color: RHS 181B
(greyed-red group). Bark: Smooth. Old Wood: Color: RHS 144A
(yellow-green group). Bark: Smooth. Branching habit.--Number: None.
Stems.--Mature Stem: Length: 76 cm. Diameter: 8 mm. Internode
Distance: 3-5 cm. The above measurements are all variable,
depending on growing conditions in a season. Stem Pubescence
Present: No. Prickles.--Quantity: On main canes from base:
Ordinary. Number per stem length: 14 per 30 cm. Form: Deep concave.
Length: 9 mm. Color when young: RHS 181B (greyed-red group). Color
when mature: RHS 160A (greyed-yellow group). Small
prickles.--Quantity: Main stalk: None Laterals: None. Disease
resistance.--Mildew: Resistant. Blackspot: Not tested. Rust: Not
tested. Pest resistance.--Not tested. Winter hardiness.--Not
tested. Growing conditions.--Normal greenhouse conditions.
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