Plant Variety Journal - IP Australia

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Plant Varieties Journal Vol. 23 Number 4 Details of Application Application Number 2008/183 Variety Name ‘CT5000’ Genus Species Pennisetum clandestinum Common Name Kikuyu grass Synonym Ceretec Five Thousand Accepted Date 05 Aug 2008 Applicant Donald Eugene Eykamp, Emerald, QLD Agent Davies Collison Cave, Melbourne VIC Qualified Person Donald Eykamp Details of Comparative Trial Location Tamworth, NSW Descriptor Grass (General descriptor for grasses) PBR GRASS Period 2006-2009 Conditions Trial field is alluvial flood plain bordering the Peel River 7 km's west of Tamworth. Soil is deep and predominately silt/clay loam. It has very good moisture-holding traits, very fertile with no element deficiencies. The only fertilizer used is nitrogen at high rates which is necessary to stimulate seed setting, not plant growth The climate here has a definite winter spring summer fall cycle. Winters are very frosty which is needed to cause Kikuyu to go dormant. Dormancy is vital to good seedsetting. Spring and summer are not too hot, very few days above 38 c, very hot summers causes kikuyu to stop flowering. Falls here are usually dry, an absolute must for harvest as the crop has to be put thru the harvesters up to 5 times. The climate has been true to history and my yields have been good. The trials were planted 20 Feb. as are all the seed crops and the mild autumns have given good growth before the first frosts. Trial Design Trials of 8 plots at Tamworth were irrigated by overhead pivot and no fertilizer or pesticides were used. 24D Atrazine was used 3 times for weed control. Measurements Measurements were taken per plant randomly from eight plots were developed for PBR trial and measurements for stolon lenth of internode were taken from 60 samples. RHS Chart - edition Origin and Breeding Selection from source material: Breeding conducted by field selection from 1 acres of ‘Noonan’ – ‘Noonan’ seed supplied by NSW Department of Ag Grafton and planted very thin by drill on 1 acres. Plants were selected on basis of leaf size, length, colour, stolen length and node intervals. Colour by selecting only darker plants. All plants were selected for turf qualities only. Only the least aggressive and densest plants were selected. Selected plants were transplanted on 1 acre area and managed for seed production. Seed harvested was replanted on a new 5 acre plot and any off-types were eliminated by digging up. The plot was then managed for seed production and harvested seed was sown on 25 acres. Seed was taken to Tamworth and planted on 80 Page 144 of 322
Plant Varieties Journal Vol. 23 Number 4 acres for commercial seed production. Breeder Donald Eugene Eykamp, Emerald, QLD: 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 Plant life cycle perennial Plant stolons presents Awns presence presence Stolon nodes simple Most Similar Varieties of Common Knowledge identified (VCK) Name Comments ‘Whittet’ 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 ‘CT5000’ ‘Whittet’ Plant: ploidy not known not known Plant: life-cycle perennial perennial Plant: duration of life-cycle (perennials only) long long Plant: growth habit mat-forming mat-forming Plant: stolons present present Plant: rhizomes present present Stolon: nodes simple simple Stolon: number of branches many very few to few Stolon: length of internode short long Stolon: width of internode narrow broad Stolon: colour where exposed to sun (summer) (RHS green group 143A 138A colour chart) Stolon: length of leaf sheath very short very long Stolon: length of leaf blade very short very long Stolon: width of leaf blade narrow broad Stolon: hairiness of leaf sheath present present Stolon: extent of hairiness of leaf sheath medium strong Stolon: distribution of hairiness of leaf sheath full full Stolon: leaf blade glaucosity absent absent Stolon: extent of leaf blade glaucosity weak weak Stolon: shape of leaf blade triangular triangular Stolon: shape of leaf apex acute obtuse Page 145 of 322
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Plant Variety Journal - IP Australia

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