Plant Variety Journal - IP Australia

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Plant Varieties Journal Vol. 23 Number 4 Details of Application Application Number 2009/237 Variety Name ‘PHOS4’ Genus Species Phormium tenax Common Name New Zealand Flax Synonym Nil Accepted Date 22 Dec 2009 Applicant Ozbreed Pty Ltd, Clarendon, NSW Agent Nil Qualified Person Ian Paananen Details of Comparative Trial Location Clarendon, NSW Descriptor Phormium (Phormium tenax) PBR PHOR Period Spring 2010 Conditions Trial conducted in open beds, plants propagated from cuttings, planted into 140mm pots filled with soilless potting mix, nutrition maintained with slow release and liquid fertilisers, irrigation by overhead watering, pest and disease treatments not required. Trial Design Fifteen pots of each variety arranged in a completely randomised design. Measurements From ten plants at random. RHS Chart - edition 2007 Origin and Breeding Spontaneous mutation: ‘PHOS2’ in 2007. The seed parent is characterised by a brown leaf colour and weak secondary colour expression. In 2007 a single whole plant mutation was identified within a production batch of ‘PHOS2’. It was isolated and subsequently asexually reproduced and found to be uniform and stable. This selection was later named ‘PHOS4’. Selection took place in Carabooda, WA. Selection criteria: presence of prominent leaf blade variegation. Propagation: vegetative, micropropagation is found to be uniform and stable. Breeder: Gavin James, Carabooda, WA. Choice of Comparators Characteristics used for grouping varieties to identify the most similar Variety of Common Knowledge Organ/Plant Part Context State of Expression in Group of Varieties Leaf blade presence of secondary colour present Leaf blade main colour of middle zone of brown upper side Most Similar Varieties of Common Knowledge identified (VCK) Name Comments ‘PHOS2’ Varieties of Common Knowledge identified and subsequently excluded Variety Distinguishing Characteristics State of Expression in Candidate Variety State of Expression in Comparator Variety Page 184 of 322
Plant Varieties Journal Vol. 23 Number 4 ‘Surfer Boy’ Leaf blade main colour brown green ‘Elfin’ Leaf prominence of secondary colour strong absent Variety Description and Distinctness - Characteristics which distinguish the candidate from one or more of the comparators are marked with a tick. Organ/Plant Part: Context ‘PHOS4’ ‘PHOS2’ Plant: height short very short Plant: width narrow very narrow Plant: number of suckers many many Plant: number of leaves many many Plant: main colour brown brown Leaf: length short very short Leaf: width at broadest part narrow very narrow to narrow Young leaf: main colour of middle zone on upper side (RHS colour chart) Young leaf: main colour of margin zone on upper side (RHS colour chart) Young leaf: colour of edge on upper side (RHS colour chart) Young leaf: main colour of middle zone on lower side (RHS colour chart) Young leaf: main colour of margin zone on lower side (RHS colour chart) Young leaf: colour of edge on lower side (RHS colour chart) Leaf: main colour of middle zone on upper side (RHS colour chart) Leaf: secondary colour/s of middle zone on upper side (RHS colour chart) 146A 146A 146A 146A 146A 146A 200C n/a 146A 146A 146A 146A 146A 146A 200A-B 147B-C Leaf: main colour of margin zone on upper side (RHS colour chart) 144A 200A-B Leaf: colour of edge on upper side (RHS colour chart) 144A 200A-B Leaf: main colour of middle zone on lower side (RHS colour chart) Leaf: secondary colour/s of middle zone on lower side (RHS colour chart) Leaf: main colour of margin zone on lower side (RHS colour chart) 200D 200A-B striated with 144A 200A-B 144A 200A-B Page 185 of 322
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Plant Variety Journal - IP Australia

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