Tree Improvement and cuttings production of Oji Paper Co. Eucalyptus globulus at Albany Forestry Research Centre Nigel England
Time points Oji Paper Co. • 1992 APFL planting began • 2001 Start of Phenotypic tree selection • 2003 Albany Forestry Research Centre opened • 2004 First field trial planted (2ha) • 2005 Trials and 10ha of cuttings planted • 2006 Trials and 80ha of cuttings planted • 2007 Planting of 100ha projected
Phenotypic Tree Selection Oji Paper Co. • In plantations of 6-10 yrs • Immediate neighbours must be alive • Straight without forks • Measure surrounding 25 trees • DBH > plot mean+1.5sd
Phenotypic Tree Selection Oji Paper Co. Example of typical phenotypic tree selection plot X X X Dead X X X Dead X X X X Candidate X X X Dead X Tree X X X Dead X X X X Dead X X X
Wood sampling • Whole tree sample based on discs at 10, 30, 50, 70, and 90% of ht to 5cm DOB • Wood tested for: Basic density Pulp Yield Alkali consumption Fibre length • Cores also taken at BH • NIR analysis (with ENSIS)
Propagation by cuttings from coppice Coppice in field Cuttings from coppice after 8 weeks (4 clones chosen at random)
Population distribution of root strike 60 Based on 343 clones Total sample size of 321 Total of 321 clones 50 Tested over 4 seasons % of clones 40 30 20 10 0 0 1-20 21-40 41-60 61-80 81-100 Rooting % group
Root strike from coppice and nursery grown stock-plants 90 80 Rooting % from nursery stockplants 70 60 50 40 30 R sq= 0.54 20 10 0 0 10 20 30 40 50 60 70 80 90 Rooting % from coppice
Mother plant systems Outside Potted Oji Paper Co. stock-plants Continuous Flow Hydroponics And Flood and Drain Hydroponics
Root strike from different systems 90 80 70 Root % (8 weeks) 60 December 50 Jan 40 Mean 30 20 10 0 Potted Stock Cont Flow Hydros F&D Hydros Data from 4 clones in Dec 2006, 2 clones in Jan 07 , Total 37 000 cuttings
Photos of cuttings Oji Paper Co. Production cuttings after 5 weeks
Relationships between Rooting and Wood properties Rooting v Screened Pulp Yield 59 57 SPY at K appa 18 (%) 55 53 51 Rooting % v Wood Basic Density 49 700 47 45 650 0 20 40 60 80 100 B a s ic D e n s ity (k g m -3 ) Rooting (%) 600 Rooting v Kajanni Fibre Length 550 1 500 0.95 0.9 450 0 10 20 30 40 50 60 70 80 90 100 K F L (m m ) 0.85 Rooting ability (%) 0.8 0.75 0.7 0.65 0 20 40 60 80 100 Rooting (%)
Clone trials Oji Paper Co. • STP, 5TP, and 72TP designs depending on plants available • 60 clones in trials of at least 8 plants • Range of sites tested within APFL planting limit of 120km of Albany • Improved seedling controls in all trials • Joint trials with other companies
Clone trial results Oji Paper Co. 6.00 5.00 T12 4.00 T15 Height (m) T17 3.00 T33 Unimp seed 2.00 Imp Seed 1 Imp Seed 2 1.00 0.00 0 5 10 15 20 25 Data: 4 x 72 tree plots on Time from planting (months) 1 site
Developing a breeding population • All clones are being planted in a Breeding Arboretum and being out-crossed • Progeny trials will be planted with this seed • Combination crosses are also being made of good growing and good rooting clones • Germ-plasm exchange with other companies
Acknowledgements ‘Tom’ Tsurumi Oji Paper Co. Shin Sukeno Karen Seward Keiji Tomita Allie Muneri Troy Brown
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