PLANT VARIETIES JOURNAL 2001 VOL <strong>14</strong> NO. 2 number medium, texture smooth. Disc: diameter mediumlarge, distribution of disc florets type 4. Disc floret: length long, type tubular, colour RHS 150C. Receptacle: diameter medium, shape domed. Natural season of flowering: early. (Note: all RHS colour chart numbers refer to 1986 edition.) Origin and Breeding Controlled pollination: the variety originated in a controlled hybridisation program. The pollen parent is a purple coloured breeding line designated as 90- 287-16. The seed parent is a red, semi-double, prostrate breeding line designated 90-<strong>14</strong>7-10. The resulting seeds were germinated and one of the flowering progeny designated UoM92-333-2 was selected. Selection criteria: large, reddish coloured, semi double type flowers, spreading and prolific growth habit with short response time to flowering. Propagation: propagated asexually using terminal cuttings through many generations. Breeders: Neil Owen Anderson and Peter David Ascher, University of Minnesota, St. Paul, Minnesota, USA. Choice of Comparators The variety ‘Empire Salsa’ (Yoder, USA) was originally chosen in the USA as the closest variety in terms of flower colour. However, it was not chosen as a comparator in <strong>Australia</strong> because of its much shorter plant height. The next closest variety was identified as ‘Helen’ (Yoder, USA). Another comparator, ‘Acrobat’ was selected from the Cleangro, U.K. “Showmaker” series. ‘Acrobat’ is described as a mid to late burgundy single. The commercial varieties ‘Big Wheel’ is a medium to tall, red, decorative and ‘Gala’, ‘Bravo’ and ‘Cheery Emily’ were of comparable red colour but were also of decorative type and not chosen. Comparative Trial Location: conducted at F&I Baguley Flower and Plant Growers, Clayton South, VIC between Jan and May 2001. Conditions: plants raised on their own roots from cuttings planted into 200mm pots in commercial pine bark potting mix on raised glasshouse benches. Pots were watered and fed using a drip system (one dripper /pot). The glasshouse had blackout facilities for flower regulation and the glasshouse walls and roof were sprayed with whitewash. All plants were subjected to the same spray chemical treatments to maintain health. Trial design: 20 plants of each variety arranged in 5 rows of 4 pots. The trial design allowed comparison of form, growth habit and flower colour. Measurements: from all trial plants. Prior Applications and Sales Country Year Current Status Name Applied USA 2000 Applied ‘92-333-2’ Canada 2000 Applied ‘92-333-2’ Prior sales nil. Description: Graeme Guy, Clayton South, VIC. Table 7 Chrysanthemum varieties ‘UoM92- *‘Helen’ *‘Acrobat’ 333-2’ ____________________________________________________ LEAF SIZE small- medium- small medium small ____________________________________________________ 32 LEAF INCISIONS OF MARGIN strong medium medium ____________________________________________________ LEAF COLOUR medium light dark ____________________________________________________ PLANT DENSITY medium sparse dense ____________________________________________________ FLOWER COLOUR CHANGE present absent absent ____________________________________________________ FLOWER COLOUR Stage 8 RHS 184C RHS 53A RHS 78B Stage 10 RHS 186B RHS 53A RHS 78B ____________________________________________________ FLOWER TYPE semi double double single ____________________________________________________ FLOWER DIAMETER large small- medium medium ____________________________________________________ ‘UoM95-157-6’ Application No: 2000/339 Accepted: 1 Mar 2001. Applicant: Regents of the University of Minnesota, Minneapolis, USA. Agent: Anthony Tesselaar Plants Pty Ltd, Silvan, VIC. Characteristics (Table 8, Figure 18) Plant: height medium. Stem: internode length short diameter medium, colour green (RHS 138B) anthocyanin colouration absent, strength medium. Lateral shoot: attachment to the stem medium, angle between lateral shoot and stem medium. Peduncle: thickness medium, length of terminal flower head short. Stipule: size small. Leaf: length small-medium, width medium to narrow, length to width ratio medium, thickness medium, texture leathery, dissection strong-medium, colour upper side green (RHS <strong>14</strong>7A), length of lower lobe medium, shape of base of sinus between lateral lobes round, claw in base of sinus between lateral lobes absent, margins of sinus between lateral lobes diverging, shape of base obtuse, shape of apex cuspidate. Inflorescence: corymbiform. Flower head: diameter large, height from involucral bracts to top of flower head medium, type semidouble, number of involucral bracts 5 or less, involucral bracts among ray florets absent. Ray Floret: longitudinal axis of majority of florets very slightly twisted, length of corolla tube short, cross section of ray concave, keel present, length of outer florets long, width of outer florets medium, ratio length to width, high, shape of tip dentate, colour of outer side of majority of ray florets white (at stage 9), colour of inner side of majority of ray florets white, colour of inner side of inner florets RHS 150D (at stage 8), number medium, texture smooth. Disc: diameter medium, distribution of disc florets type 4. Disc floret: length short, type tubular, colour RHS <strong>14</strong>9C. Receptacle: diameter medium, shape domed. Natural season of flowering: early. (Note: all RHS colour chart numbers refer to 1986 edition.) Origin and Breeding Controlled pollination: the variety originated in a controlled hybridisation program. The pollen parent is a breeding line designated as 92-279-2 and the seed parent is ‘Baby Tears’. The seed parent is characterised Continued on Page 33
Fig 1 Rose – flowers and plant parts of ‘Tanedaj’. Fig 2 Rose – flowers and plant parts of ‘Tanaran’. Fig 3 Rose – flowers and plant parts of ‘Hansug’ syn Sugar Plum Fairy. PLANT VARIETIES JOURNAL 2001 VOL <strong>14</strong> NO. 2 Fig 4 Rose – ‘Grandbeta’ (left) and ‘Sundel’ (right), showing differences in flower colour, reflexing of petal, and flower shape from above.
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