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53. Volume 13- Number 1 - IP Australia

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DESCR<strong>IP</strong>TIONS<br />

PLANT VARIETIES JOURNAL 2000 VOL <strong>13</strong> NO. 1<br />

TERMINAL LEAFLET WIDTH (mm)<br />

mean 16.33 22.16<br />

std deviation 1.96 1.47<br />

LSD/sig 3.17 P≤0.01<br />

____________________________________________________<br />

FLOWER DIAMETER (mm)<br />

mean 44.03 39.66<br />

std deviation 1.48 2.75<br />

LSD/sig 4.04 P≤0.01<br />

____________________________________________________<br />

PETAL COLOUR (RHS, 1995)<br />

midzone inside 63B 64B<br />

margin inside 64B 64A<br />

midzone outside 63B 63B<br />

margin outside 64B 63B<br />

____________________________________________________<br />

BASAL SPOT SIZE<br />

medium to very large<br />

large<br />

____________________________________________________<br />

BASAL SPOT COLOUR (RHS, 1995)<br />

inner side 155D 155D<br />

outer side 155B 155D<br />

____________________________________________________<br />

PETAL: REFLEXING OF MARGIN<br />

weak weak to medium<br />

____________________________________________________<br />

‘JACirst’ syn Artistry<br />

Application No: 1998/074 Accepted: 3 Sept 1998.<br />

Applicant: Bear Creek Gardens Inc., Somis, California,<br />

USA.<br />

Agent: Swane Bros. Pty Ltd, Narromine, NSW.<br />

Characteristics (Table 39, Figure 9) Plant: growth habit<br />

bushy, upright, vigorous, hybrid tea. Young shoot:<br />

anthocyanin colouration strong, colour reddish brown.<br />

Thorns: present, shape of lower side flat, many long<br />

prickles, medium short prickles. Leaf size: large, colour<br />

dark green, upper surface medium gloss. Terminal leaflet:<br />

cross section slight concave, margin undulation medium,<br />

rounded base. Flower bud: shape broad ovate. Flower:<br />

double, many petals, flower diameter large, view from<br />

above irregularly round, side profile flattened convex,<br />

fragrance very weak. Septal extensions: absent or very<br />

weak. Petal: size large, middle zone inner side RHS<br />

48B/39B, margin inside RHS 48A/39A, middle zone outer<br />

side RHS 48D/49A, margin outer side RHS 51/50B, basal<br />

spot present, size large, colour RHS 2B, petal margin<br />

undulation medium, reflexing of margin weak. Stamen<br />

filament: colour pink. Flowering habit: remontant. (Note:<br />

all RHS chart numbers refer to 1995 edition.)<br />

Origin and Breeding Controlled pollination: seed parent<br />

‘JACbor’ (US Plant Patent 6,668) x pollen parent ‘JACyo’<br />

(US Plant Patent 6,443) in a planned breeding program. The<br />

seed parent bears large red flowers (RHS 42B-C) and dark<br />

green foliage. The pollen parent has orange-red flower<br />

colour (RHS 32D) with a pale yellow and orange reverse<br />

colour with long flowering stems and has vigorous, upright<br />

growth habit. Selection criteria: seedlings from the cross<br />

were grown and selection was made on the basis of flower<br />

colour, plant growth habit. Propagation: vegetatively<br />

through many generations. Breeder: Keith W. Zary, Somis,<br />

California. USA.<br />

Choice of Comparator Initially ‘Fragrant Cloud’, ‘Lady<br />

Rose’ and ‘Fascination’ considered as comparators. Later<br />

‘Lady Rose’ and ‘Fascination’ was excluded on the basis of<br />

flower colour and shape as well as bush size and foliage<br />

colour and texture. Finally ‘Fragrant Cloud’ was chosen to<br />

be the closest comparator for its similarity in flower colour.<br />

The parents were not considered because of different flower<br />

colour as stated above.<br />

Comparative Trial Comparator ‘Fragrant Cloud’.<br />

Location: Swane’s Nursery, Narromine, NSW in Nov 1999.<br />

Conditions: plant were budded on root stocks and raised in<br />

open beds. Trial Design: completely randomised.<br />

Measurements: from 10 plants taken at random.<br />

Prior Applications and Sales<br />

Country Year Current Status Name Applied<br />

South Africa 1995 Refused ‘JACirst’<br />

USA 1996 Granted ‘JACirst’<br />

First sold in USA in 1996.<br />

Description: Geoffrey Swane, Swane Bros. Pty Ltd, Narromine, NSW.<br />

Table 39 Rosa varieties<br />

‘JACirst’ *‘Fragrant Cloud’<br />

____________________________________________________<br />

PLANT GROWTH HABIT<br />

bushy<br />

bushy<br />

____________________________________________________<br />

PLANT HEIGHT<br />

medium short to medium<br />

____________________________________________________<br />

YOUNG SHOOT: HUE OF ANTHOCYANIN<br />

reddish brown bronze to<br />

reddish brown<br />

____________________________________________________<br />

PRICKLE SHAPE<br />

flat<br />

concave<br />

____________________________________________________<br />

SHORT PRICKLES: NUMBER<br />

medium absent<br />

____________________________________________________<br />

LONG PRICKLES: NUMBER<br />

many<br />

medium<br />

____________________________________________________<br />

LEAFLET CROSS SECTION<br />

slight concave concave<br />

____________________________________________________<br />

LEAFLET UNDULATION OF MARGIN<br />

medium strong<br />

____________________________________________________<br />

TERMINAL LEAFLET LENGTH (mm)<br />

mean 77.00 105.50<br />

std deviation 3.46 7.17<br />

LSD/sig 10.31 P≤0.01<br />

____________________________________________________<br />

TERMINAL LEAFLET WIDTH (mm)<br />

mean 56.00 56.66<br />

std deviation 2.68 5.50<br />

LSD/sig 7.91 ns<br />

____________________________________________________<br />

59

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