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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 />

SEPAL: EXTENSIONS<br />

weak to weak weak<br />

medium<br />

____________________________________________________<br />

PETAL: SIZE<br />

large medium large<br />

____________________________________________________<br />

PETAL COLOUR (RHS, 1986)<br />

midzone outside 23D 10D 25D<br />

midzone inside 23C 27A 24C<br />

margin outside 27A 29D 27A<br />

margin inside 26D 29D 24B<br />

____________________________________________________<br />

PETAL: SIZE OF SPOT AT BASE OF INNER SIDE<br />

small to medium small<br />

medium<br />

____________________________________________________<br />

PETAL: SIZE OF SPOT AT BASE OF OUTER SIDE<br />

small medium small<br />

____________________________________________________<br />

COLOUR OF SPOT AT BASE (RHS, 1986)<br />

outside <strong>13</strong>B <strong>13</strong>C 14B<br />

inside 14B 12A 14B<br />

____________________________________________________<br />

PETAL: REFLEXING OF MARGIN<br />

weak to weak weak<br />

medium<br />

____________________________________________________<br />

SEED VESSEL: SIZE<br />

large medium large<br />

____________________________________________________<br />

H<strong>IP</strong>: SHAPE OF LONGITUDINAL SECTION<br />

pitcher funnel pitcher<br />

____________________________________________________<br />

TIME OF BEGINNING OF FLOWERING<br />

medium medium late<br />

____________________________________________________<br />

‘Interlene’<br />

Application No: 1998/263 Accepted: 29 Jan 1999.<br />

Applicant: Interplant B.V., Ne Leersum, The Netherlands.<br />

Agent: Grandiflora Nurseries Pty Ltd, Cranbourne, VIC.<br />

Characteristics (Table 37, Figure 12) Plant: habit narrow<br />

bushy, width medium. Young vegetative shoot: anthocyanin<br />

colouration very strong, purple. Stem thorns: present, lower<br />

surface concave. Leaves: size small, medium green,<br />

glossiness of upper side medium. Terminal leaflet: size<br />

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

absent, leaf base rounded. Flower pedicel: medium prickles.<br />

Flower bud: profile ovate. Flower: size small, double, flat<br />

upper and lower profile, sepal extensions medium,<br />

fragrance weak. Petals: size small, colour inner and outer<br />

side white (RHS 155D), basal spot absent on both sides,<br />

margin reflexing strong, undulation weak, stamen filament<br />

white. Seed vessel: small, pitcher shaped. Flowering:<br />

remontant cut flower rose. (Note: all RHS colour chart<br />

numbers refer to 1986 edition.)<br />

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

‘unnamed seedling’ x pollen parent ‘unnamed seedling’ in a<br />

planned breeding program at the applicant’s nursery in<br />

Leersum, The Netherlands, in 1992. Both parents are<br />

proprietary breeding stock plants within breeder’s private<br />

collection. Selection criteria: selected on the basis of<br />

vigorous growth, high production, pure white colour.<br />

Propagation: by vegetative methods through many<br />

generations. Breeder: Mr. G. P Ilsink, Interplant B.V.,<br />

Leersum, The Netherlands.<br />

Choice of Comparator ‘Tineke’ was initially considered as<br />

a comparator, however it was not finally included in the trial<br />

as it significantly differs from the candidate in stamen<br />

filament colour, which is yellow-green in ‘Tineke’ but white<br />

in ‘Interlene’. ‘Prebian’ A syn Bianca A was finally chosen<br />

as the sole comparator as it is in the opinion of the qualified<br />

person the most similar cut flower variety of common<br />

knowledge on the basis of flower colour.<br />

Comparative Trial Comparator: ‘Prebian’ A syn Bianca A .<br />

Location: Cranbourne, VIC, Jul – Dec 1999. Conditions:<br />

plants grown in the soil within environmentally controlled<br />

glasshouse. Measurements: 20 random samples of each<br />

variety collected over a five month period.<br />

Prior Applications and Sales<br />

Country Year Current Status Name Applied<br />

The Netherlands 1996 Granted ‘Interlene’<br />

Zimbabwe 1996 Applied ‘Interlene’<br />

First sold in The Netherlands Jan 1997.<br />

Description: Phil Elliott, Grandiflora Nurseries Pty Ltd, Cranbourne, VIC.<br />

Table 37 Rosa varieties<br />

‘Interlene’ *‘Prebian’ A<br />

syn Bianca A<br />

____________________________________________________<br />

PLANT HEIGHT<br />

narrow bushy narrow bushy<br />

____________________________________________________<br />

YOUNG SHOOT: ANTHOCYANIN COLOURATION<br />

very strong weak<br />

____________________________________________________<br />

YOUNG SHOOT: HUE OF ANTHOCYANIN COLOURATION<br />

purple<br />

bronze<br />

____________________________________________________<br />

THORN LENGTH (mm)<br />

mean 9.0 8.0<br />

std deviation 1.23 1.01<br />

LSD/sig 0.86 P≤0.01<br />

____________________________________________________<br />

LEAF SIZE<br />

medium medium<br />

____________________________________________________<br />

LEAF COLOUR<br />

medium medium<br />

____________________________________________________<br />

TERMINAL LEAFLET LENGTH (mm)<br />

mean 69.5 68.0<br />

std deviation 7.07 10.69<br />

LSD/sig 6.95 ns<br />

____________________________________________________<br />

TERMINAL LEAFLET WIDTH (mm)<br />

mean 43.0 43.0<br />

std deviation 5.87 5.03<br />

LSD/sig 4.19 ns<br />

____________________________________________________<br />

57

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