AU618254B2 - A rose plant - Google Patents

Description

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'a Pric 4''r Ii S -i COMMONWEALTH OF AUSTRALIA Patents Act 1952-1969 COMPLETE SPECIFICATION

(ORIGINAL)

rr 618Z54 Application Number Lodged Complete Application No.

Specification Lodged Published FOR OFFICE USE: 1 Class LODGED AT SUB~ 1 5 APR Adelai ority: ated art: LI IIII Name of Applicant: Address of Applicant: Actual Inventor: Address for Service: TO BE COMPLETED BY APPLICANT DEANE McLAREN ROSS, MAUREN ANNE ROSS and ANDRE McLAREN ROSS all of St. Andrews Street, Willunga, State of South Australia, Commonwealth of Australia Alain Meilland 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 m: us: The present invention relates to a new cultivar of shrub rose plant to be known by the international code name MEISECASO, or by the commercial name SHADY LADY.

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

MEISECASO.

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 from the rose plant obtained in any one of the abovementioned forms of the invention.

i 4 According to another form of the invention there are provided cuttings being foliage, stems and buds of the rose plant described in any one of the abovementioned forms of thn invention.

The MEISECASO rose plant has several desirable features that make it unique.

S It is:t t o Especially tolerant of shady conditions.

j Repeats flowering very quickly, with three or four weeks between flushes.

Virtually evergreen.

it Virtually sterile, therefore does not require trimming of spent blooms.

i 30 No pruning is required in order to maintain the prolific flowering pattern.

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

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The MEISECASO rose plant vwas derived by the following breeding programme. SEA FOAM as seed parent was crossed with CORAL DALYN as the pollen parent and one of the resulting progeny a then unnamed seedling and identified as MASTER was crossed as seed parent with PICASSO as pollen parent to make a further before unnamed variety and now named SEA DAWN. SEA DAWN as pollen parent was then crossed with GRUMPY as seed parent to form 10 MEISECASO.

ii The method by which the MEISECASO plant is best derived is methodology, as known to the breeders of rose plants, selecting for the i: characteristics of the MEISECASO rose plant.

.4 It is practical to repeat the invention using current state of the art 9 9 techniques to carry out the number of trials necessary to achieve the i* 9: desired result.

Selected flowers of the SEA FOAM rose plant are prepared and pollen collected from the CORAL DALYN plant is applied to them. Seeds -Atir resulting from the cross are collected and then sown. The resulting S.;c plants are screened during bloom for the characteristics of the MASTER. Selected flowers of the MASTER rose plant are prepared 44,, and pollen collected from the PICASSO plant is applied to them.

Seeds resulting from the cross are collected and then sown. The r ,,resulting plants are screened during bloom for the characteristics of the SEA DAWN. Selected flowers of the GRUMPY rose plant are prepared i and pollen collected from the SEA DAWN 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 of the I MEISECASO.

k. VS V 4 I The characteristics of the SEA FOAM are as follows: floribunda, white to cream double medium blooms in clusters, slightly fragrant, small I 5 glossy, leathery foliage. The SEA FOAM is a vigorous climber and it trailer and a recurrent bloomer. This rose was originally bred by E.W.

Schwartz in 1964.

i i CORAL DAWN, also known as CORAL DALYN was bred by Boerner in 1952. CORAL DAWN is a climbing rose with rose pink large double Scupped, fragrant blooms in cluster. CORAL DAWN has leathery foliage I and is vigorous.

t i The PICASSO also known as the MACPIC was originally bred in 1971 by S McGredy IV. The PICASSO has the following characteristics: floribunda; deep pink,petal edges lighter, white eye and reverse, semidouble petals. Small foliage.

The MASTE3 is a climbing rose with light pink petals RHS 49C. The MASTER has 30-40 petals per bloom with an average bloom width of mm. There are about 3 to 10 flowers per spray. The MASTER 'exhibits perpetual blooming, one flush follows another. The foliage is ,44 small glossy dark green.

4 The SEA DAWN is a bush rose. It blooms ar deep pink RHS 52A with a white eye, and 20-30 petals per bloom, with an average bloom width of 70 mm. There are 3 10 flowers per spray. The SEA DAWN exhibits I perpetual blooming, one flush follows another, and foliages is medium sized, glossy mid green.

K !i All parent and intermediates are available from Ross Roses in Willunga South Australia. SEA FOAM is available from Treloar Roses, Portland, Victoria and Brundett Roses, Melbourne, Victoria. The PICASSO rose is also available from Wagners Rose Nursery, McLaren Vale, South Australia.

'T 0y _C The MEISECASO rose plant has been test grown at Willunga, an area to the south of Adelaide, where normal temperatures range from 5°C. in winter to over 40°C. in summer. This region has a low humidity and often has high velocity winds.

The MEISECASO rose plant may be propagated by grafting onto a base stock such as DR. HUEY, or it may be grown on its own roots from cuttings.

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 MEISECASO as a new and *distinct cultivar.

S' Blooms: Rose madder, the basal one third of the petals is shaded ivory-white and the reverse is distinctly paler pink. Also white blotches and streaks from the base of the petals.

Golden yellow stamens which on ageing turn brown.

Short united pistils.

Size: Approximately 50 mm. in diameter and slightly cupped to flat.

Petalage: There are 15 to 20 petals per bloom, each petal being heart-shaped.

Y^ *6 Shape: Buds are elliptical with a blunt apex and are approximately mm. in diameter and approximately 15 mm. long.

The buds are ivory in colour, tinged with rose madder and yellowish towards the base.

Receptacle is small and oval.

Sepals simple.

Pedicules slender with fine hairs within the range of mm. to 30 mm. in length.

Bracts broadly lanceolate.

Inflorescence comprise 30 to 50 blooms which are closely set and within the range of 50 mm. to 200 mm. in diameter.

Wood: Light green, smooth.

a Prickles occasional.

j Foliage: Within the range of 120 mm. to 130 mm. in length; the central leaflet is within the range of 55 mm. to 65 mm. in length and the first and second pairs are within the range Sof 40 mm. to 50 mm. in length.

Stipules: Parallel with auricles forward facing.

Habit: Size height is approximately 1 m. to 1.2 m. and within the range of 700 mm. to 800 mm. wide. Generally upright and bushy. Moderately dense.

Propagation: May be grown on its own roots from cuttings or may be budded in the orthodox manner onto understocks.

,,1 tDP -2 7 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 MEISECASO cultivar with colours being as nearly true as possible with illustrations of this type.

FIG. 1 shows the front face of the leaf, shape and colour of the flowers and cluster formation.

FIG. 2 shows the reverse side of the leaf. Note the stipule and prickle formation.

FIG. 3 shows the formation of clusters. Note the flowers through all stages of development, freshly opened to fall.

20 FIG. 4 shows the reverse side of flower cluster and leaves including stipules, bracts, cymes and the reverse colour of flower.

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Claims (4)

1. A rose plant substantially as identified herein as the MEISECASO rose. I

2. A rose plant in which the plant of claim 1 is grafted to a base l 10 stock. i

3. A rose plant as in claim 2 wherein the base stock is DR. HUEY.

4. Flowers resulting from a rose plant as identified in any one of claims 1 to 3. Cuttings, being foliage, stems and buds of the rose plant as i identified in any one of claims 1 to 3. 20 Dated this 26th day of September 1991. a o tat I a a. a DEANE McLAREN ROSS, MAUREEN ANN ROSS and 'ANDREW McLAREN ROSS By their Patent Attorneys COLLISON CO. i-i i-:e i i i ii 1 I iii a '4