risks to current collections in canada – québec iufro ... · thanks to alain fauchon, françois...
TRANSCRIPT
Presented atPoplar Council of Canada Genetics Workshop and
2012 Annual General Meeting
August 21‐23, 2012Québec City
Risks to current collections in Canada – Québec IUFRO
collections case study
Pierre PérinetDirection de la recherche forestière
Outline
• Québec MRNF Breeding Program
• Parental populations – ex. of decline
• New hybrid populations in evaluation
– Breeding of 1995, 1996, 1998, 2004, 2012
• New clonal selections
• Clones for SRIC
• Populus deltoides (D)• P. balsamifera (B)• P. trichocarpa (T)• P. nigra (N)• P. maximowiczii (M)
Québec MRNF Breeding Program
Intra- and interspecific breeding:
Marginal agricultural land for poplar cultivation
Short growth season
No herbicide
Rooted stock (stecklings)
Public land
No herbicide
Max hybrids
Parental populations of exotic and native spp. for breeding
P. maximowiczii
P. nigra
P. suaveolens (China), 2007
P. deltoides in northern area
Plus-tree selection in a progeny test
25 year-old plus-trees of Trichocarpa
Tricho progenies 1999
Nigra collection 1983Max collection 1988
Poplar decline
DT windbreak
Tricho collection 2000
Max 1988, Villeroy
Max 1988, Villeroy
P. nigra, Villeroy
• P. maximowiczii × P. trichocarpa (MT)• P. maximowiczii × P. nigra (MN)
• P. maximowiczii × P. balsamifera (MB)
• P. deltoides × P. maximowiczii (DM)
• P. deltoides × P. trichocarpa (DT) = P. ×generosa
• P. deltoides × P. nigra (DN) = P. ×canadensis
• P. maximowiczii × (P. deltoides × P. trichocarpa) (M×DT)
• (P. deltoides × P. nigra) × P. maximowiczii (DN×M)
Hybrids
915508 DN×M
Hybrid populations :1995 Breeding
• P. deltoides × P. maximowiczii
LotbinièreDM
16 years
1996 breeding DM 6850
1998 breeding
Hybrid populations :1996 & 1998 Breeding
• MB, MT, MN, DM andother Max hybrids
• ≈ 1 500 clones underfield testing, Saguenay–Lac-Saint-Jeanand Bas-Saint-Laurent
• P. maximowiczii × P. trichocarpa (MT)• P. maximowiczii × P. nigra (MN)
1996 breedingMT 6127Progeny test
14 years, Shipshaw
• P. maximowiczii × P. trichocarpa (MT)
1998 breeding
MTLotbinière, 2nd year
New MB selection
1998 breeding
1993 breeding
M×DN 9195 MT×M 9238DM 9001
From the 2004 Breeding :
• 285 clones (MD, MT×M, MT×B, MT×D, M×DN) : clonal test planted in 2012 – Abitibi
• MB to be selected soon from a progeny test
New MD selectionNew MT×T selection
Northwest QuébecAbitibi region
2012 breeding:
• M×T, T×M, T×T
T
Traits – SRIC1
• high rooting percentage of cuttings under field conditions;
• high survival rates of sprouts after frequent coppicing;
• capacity to tolerate very high stand density, with sprout density not lower than 5000 per ha;
• continuous high dendromass yield over frequent and repeated coppicing;
• balanced stem dimensions (diameter and height) suitable for mechanical harvesting.
1 Paris et al. 2011.Biomass & Bioenergy 35: 1524-1532
Acknowledgements
Thanks to Alain Fauchon, François Caron, Mario Morin, Mario Potvin, Marie-Josée Mottet, Danielle Lamontagne, Nicole Robert, Pier-Luc Faucher, Jean Ménétrier and the personnel at theDRF.
Thanks to all our collaborators and partnersin Québec and the regions for their support.