AU618255B2 - A rose plant - Google Patents

Description

PATENT OFFICE 6 1 8 OMMONWEALTH OF AUSTRALIA Patents Act 1952-1969 COMPLETE

SPECIFICATION

(ORIGINAL)

FOR OFFICE USE: Class It, ass Application Number 1 Lodged l Complete Application No.

Specification Lodged h Published /I Priority: O Related art: idel i TO BE COMPLETED BY APPLICANT TENs Name of Applicant: DEANE MCLAREN ROSS, MAUREiN 7,NNE ROSS and ANDREW McLAREN ROSSI Address of Applicant: all of St. Andrews Street, Willunga, State of South Australia, Commonwealth of Australia Actual Inventor: Alain Meilland ddress for Service: COLLISON CO., Patent Attorneys, 117 King William Street, Adelaide, South Australia, 5000 Complete Specification for the invention entitled: "A ROSE PLANT" The following statement is a full description of this invention, including the best method of performing it known to us: The present invention relates to a new cultivar of shrub rose plant to be known by the international code name MEICOUBLAN or by the commercial name WHITE MEIDILAND (Meidiland is a Registered Trade Mark).

The invention resides in a rose plant substantially as identified herein as the MEICOUBLAN rose.

In another form of the invention the rose plant is grafted onto a base stock.

According to another form of the invention the base stock onto which the rose plant is grafted is DR. HUEY.

According to a further form of the invention there are provided flowers resulting i from the rose plant obtained in any one of the abovementioned forms of the :',invention.

According to another form of the invention there are provided cuttings being 20 foliage, stems and buds of the rose plant described in any one of the abovementioned forms of the invention.

The MEICOUBLAN rose plant has several desirable features. It is moderately vigorous ground cover with dense, disease resistant foliage, it has remontant flowering and does not require pruning. All these features in combination make it suitable for minimum maintenance and cultivation in inaccessible locations.

I The MEICOUBLAN rose plant was bred at Cannet-des-Maures, a highland region in the south of France, where the temperature ranges between occasional snow in winter to 400C. in summer. This region frequently has fogs and a high average humidity.

The MEICOUBLAN rose plant was derived by crossing a TEMPLE BELLS rose with a MEIGURAMI rose.

*SJ ~YU\ iThe method by which the MEICOUBLAN rose plant is best derived is methodology, as known to the breeders of rose plants, selecting for the characteristics of the M4DIE+' rose plant.

It is practical to repeat the invention using current state of the art techniques to carry out the number of trials necessary to achieve the desired result.

Selected flowers of the TEMPLE BELLS rose plant are prepared and pollen collected from the MEIGURAMI plant is applied to them. Seeds resulting from the cross are collected and then sown. The resulting plants are screened during bloom for the characteristics herein defined as the MEICOUBLAN.

The TEMPLE BELLS rose plant was bred by Morey and McGredy in 1971. It is characterised as follows. It is floribunda, with white, single small flowers that are slightly fragrant. Its foliage is small and glossy.

The MEIGURAMI (also known as Coppelia or Coppellia 76 (Meigurami)) was bred by Meilland. The MEIGURAMI has rich pink blooms, which are semi-double. The plant is tall and has very glossy foliage.

Both parents are available in Australia and are available from Ross Roses in Willunga, South Australia.

The MEICOUBLAN rose plant has been test grown at Willunga, an area to the south of Adelaide, where temperatures range from 50C. in winter to cover 400C. in summer. This region has a low humidity and often has high velocity winds.

The MEICOUBLAN rose plant may be propagated by grafting onto a base stock such as DR. HUEY. However, it has been discovered that the plant roots readily from cuttings and is best grown without grafting.

,a/v I I- 4 Horticultural examination of this plant at Cannet-des-Maures in France, and at Willunga in South Australia, has clearly demonstrated that the combination of characteristics as herein disclosed are all firmly fixed and stable.

The following traits have been repeatedly observed and are determined to be basic characteristics of MEICOUBLAN as a new and distinct cultivar.

Blooms: Petalage: White, occasionally pale pink.

Size is within the range of 40 mm. to 50 mm. in diameter.

20 to 25 petals per bloom with some central petaloids, each petal being wedge shaped, the apex of each petal being marginate. Shape commences cupped, through flat, to finish mildly reflexed. Sometimes a "button" centre of petaloids is present.

Buds are blunt, pointed and sometimes margined pink.

Receptacle is vase shaped.

S 20 Sepals: Are simple.

Pedicules are short and stout within the range of 20 mm. to mm. in length.

Inflorescences: compound cymes with up to 15 blooms.

Bracts: Are variable, from simple lanceolate to misformed leaves to full leaves; hairy.

Gives the effect of foliage nestled close around the blooms.

1 rt Ut S 51 bJ~8iT- 0

I

i I^ Fragrance: Is slight.

Infertile (does not set hips).

Period: commences late (second week November in Adelaide) then one flush of flowers closely following the previous until June.

Foliage: Deep green and glossy.

Leaves are within the range of 110 mm. to 120 mm. in length.

Top leaflet is about 50 mm. long and about 40 mm. wide.

First and second leaflets are about 40 mm. and about mm. wide.

Pointed apex with small regular serrations.

Leaflets have a characteristic wave along their length.

Stipules are parallel, enlarged centrally, upward facing auricles with fine hairs along the margins.

S 20 Wood: Light green.

Juvenile growth is bronze.

Slightly angular at the nodes.

Prickles: Three or four per internode, large, red and slightly hooked.

Habit: Long arching canes up to 800 mm. in length, terminating with a cyme of flowers.

New growth initiates behind the cymes.

Mature size: Height is up to 0.5 metres and spread is up to 1.5 metres wide.

SResistance to frost is good.

Propagation: Roots readily from cuttings.

4 6 All colours are referred to by the standard nomenclature of the Royal Horticultural Society.

The accompanying photographic drawings show typical inflorescence and foliage characteristics of the MEICOUBLAN cultivar with colours being as nearly true as possible with illustrations of this type.

FIG. 1 shows amid distance view of spring flowering.

FIG. 2 shows a closer view of spring flowering.

SFIG. 3 shows a close up front view of an open bloom.

FIG. 4 shows a reverse of flower cluster. Note the bracts, clustering formation, reverse of foliage and compactness of flower heads.

FIG. 5 shows a juvenile cluster. Note the characteristic wave of the i 20 leaves, high gloss of foliage, prickle formation and bud and flower detail.

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Claims (5)

1. A rose plant substantially as identified herein as the MEICOUBLAN rose.

2. A rose plant in which the plant of claim 1 is grafted to a base stock.

3. A rose plant as in claim 2 wherein the base stock is DR. HUEY. S4. Flowers resulting from a rose plant as identified in any one of claims 1 to 3.

5. Cuttings, being foliage, stems and buds of the rose plant as identified in any one of claims 1 to 3. S 20 Dated this 8th day of October 1991. DEANE McLAREN ROSS, MAUREEN ANNE ROSS and 25 ANDREW McLAREN ROSS By their Patent Attorneys COLLISON CO. -fa

192. (7ru/v,