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1/6/2016
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Tom Starkey
Which would you prefer to grow?
Definition
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1. # of seedlots
2. Match seedlots to ______________________
3. Future considerations
4. __________________________
82
84
86
88
90
LA TX GA AR
Survival
0
10
20
30
40
LA TX GA AR
HT
HT
0
2
4
6
LA TX GA AR
RCD
RCD 0
5
10
15
1 2 3 4
Wood/Acre (Cords)
Wood/Acre(Cords)
0
10
20
30
40
LA TX GA AR
Fusiform Rust
Fusiform Rust
LA TX GA AR
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Southern region ~ 212 million acres of forested land
Pine plantations account for only about _______% of southern US forests
Plantations provide > ______% of timber harvest
___________% of planting is with genetically improved loblolly pine
McKeand 2011www.bugwood/intensive /forest and timerland.html
Began early 1950’s
The success of pine plantation silviculture has turned the South into thewood basket of the United States (Schultz 1997).
Began early 1950’s
A major limitation on seedling production in the 1950s was the ____________________________________________________________________________
Seed Orchard concept - introduced in _______
Reevaluated in 1950’s
The first southern pine seed orchard was established by the ________________in 1952 to produce drought-hardy loblolly pine
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1. The Western Gulf Tree Improvement Cooperative his program is run by the Texas Forest Service, and works in close collaboration with scientists at Texas A&M University
2. Cooperative Forest Genetics Research Program, at the University of Florida
3. The N.C. State University - Industry Cooperative Tree Improvement Program is the largest of the three cooperatives, and works primarily on the genetic improvement of loblolly pine.
Members of the South’s 3 Tree Improvement Cooperatives are responsible for ~ 80% of the annual tree planting in the US
Genotype vs Phenotype Clone Open Pollinated (OP) Family
Half-Sib (HS)
Full-Sib (FS)Mass Controlled Pollinated (MCP ® ), Controlled mass
pollination (CMP)
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Mass production of full-sib seedlings~ 230 million produced last 10 years
Mass Control Pollination
The figure on the left shows thetype of seedling performancethat could theoretically occurwhen using an open-pollinatedfamily, including red (poor tree performance), grey (average tree performance), yellow (above average) and green (best performing trees possible, i.e. sawtimberpotential.)
OP Seedlings
Improve Your Future Forest Revenue Streamwith Advanced Pine Genetics – Roussaeu (On Web Site)
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MCP Seedlings
Improve Your Future Forest Revenue Streamwith Advanced Pine Genetics – Roussaeu (On Web Site)
Improve Your Future Forest Revenue Streamwith Advanced Pine Genetics – Roussaeu (On Web Site)
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Guidelines for planting site selection
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Guideline for site selection
Forest Genetics - Longleaf
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Educating foresters and landownersabout the value of tree improvement
• The Loblolly Pine Performance Rating System (PRSTM) as a service to landowners, nursery managers, the tree improvement community, and loblolly pine breeders.
• PRS also stands for Productivity, Rust, and Straightness that are the three traits that are evaluated in all genetics trials.
The PRS expresses the genetic potential of a family for stem volume production, resistance to fusiform rust disease, stem straightness as well as other traits.
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0°F
-5°F
-10°F
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2006. Journal of Forestry 104:352-358.
“… We estimate that landowners can realize net present values of $50 to over $300/ac across a range of productivity and silvicultural management regimes simply by planting the best genotypes that are currently available from commercial and state forest nurseries…”
2006. Journal of Forestry 104:352-358.
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