Isolation, inbreeding and relationships in forest trees Selection concepts cs iro Forestry and Forest Products... Selection seed orchards, seed prod areas csi ro Forestry and Forest P
Trang 1Isolation, inbreeding and
relationships in forest trees
Selection concepts
cs iro Forestry and Forest Products
Trang 2Isolation, inbreeding and
relationships in forest trees
1 Phenotype
2 Selection (seed orchards, seed prod areas)
csi ro Forestry and Forest Products
Trang 5Tree Quality
P=G+E
Trang 6E
Environment
Natural environment + Silvicultural
Trang 8Genetic diversity
Trang 9Tree Quality
P=G+E Product = genetics + environment
Trang 10Activity cycle for tree breeding
Breeding Population
csino Forestry and Forest Products
Trang 11Activity cycle for tree breeding
Population
Trang 14
Seediling seed orchard with 60 1⁄2-sib families
replicate
Trang 15Within-plot thinning of seed orchards
First assessment
Replicate 1 Replicate 2
csino Forestry and Forest Products
Trang 16Self-fertilised family - inbreeding depression of yield
Trang 19E camaldulensis: By
natural seed source fae
Australian seedlot
(collected from natural
stand, one year younger) #
Vietnam land race
csiRo Forestry and Forest Products
Trang 20Open-pollinated eucalypt family -
insects are the main pollinators
csi ro Forestry and Forest Products
Trang 21Within-plot thinning of seed orchards
First assessment
Trang 22
Within-plot thinning of seed orchards
(ji) Plot 6 Family 1 Plot 6 Family 6
cs iro Forestry and Forest Products
Trang 23Within-plot thinning of seed orchards
csino Forestry and Forest Products
Trang 24Outcrossed family (control-pollinated
Trang 25Seed production area (SPA)
Trang 26
Seed production area
Trang 27
Seed production area
Trang 28
Further thinning and selection
80% culling 90% culling
Original Original
population Selected population ulation
mean
‘mean
Trang 29
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