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| Project Title: |
Genetic Improvement of Western Larch: Progeny Tests for
West Kootenay Seed Planning Zone. |
| Project Number: |
EP 1020.02.02 |
|
| Districts: |
Arrow Boundary and Kootenay Lake Forest Districts |
|
| Location: |
Lake Creek - Kootenay Lake
Lat. 50 18'N, Long. 116 58'W |
Opening # 82K035-123 |
|
Sandrift Creek - Boundary
Lat. 49 37N, Long. 118 53'W |
Opening # 82E066-145 |
|
Wilson Creek - Arrow
Lat. 50 08'N, Long. 117 22'W |
Opening # 82K014-239 |
| Principal Researcher: |
Barry Jaquish
Kalamalka Forestry Centre
Vernon |
Phone: (250) 260-4766
e-mail:
Barry.Jaquish@gov.bc.ca |
|
|
|
Objectives:
-
To evaluate the growth and adaptability of local and nonlocal western larch
families in the West Kootenay seed planning zone.
-
To estimate breeding values of parents included in first-generation seed
orchards in order to remove genetically inferior parents.
-
To estimate components of genetic variance/covariance, heritabilities and
genetic gain for traits relating to tree growth, form, adaptability and wood
properties.
Experimental Design:
Genetic entries included in test (224 in total)
| Zone |
Number of wind-pollinated families |
| East Kootenay |
24 |
| West Kootenay |
192 |
| Controls |
8 (5 local operational WK seedlots, 2 EK seedlots, and 1 Siberian larch
seedlot from Russia) |
Layout:
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Randomized complete-block design with 8 replicate blocks.
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The 224 genetic entries were randomly subdivided into 7 sets of 32 entries.
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Sets were randomly assigned to positions in blocks.
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Genetic entries were randomly assigned to four-tree row plots within sets.
-
Sampling units are individual trees spaced at 2 x 2 m. White stakes identify
set corners.
History:
-
1993 plantations established
-
1995 manual brushing and third-year heights measured
-
1998
-
sixth-year heights measured
-
brushed Sandrift and Wilson Creek locations
Status: Active.
Reports and Publications:
Jaquish, B., G. Howe, L. Fins and M. Rust. 1995. Western larch tree improvement
programs in the Inland Empire and British Columbia. In Ecology and
management of Larix forests: a look ahead. Proc. of an international symposium;
1992 October 5-9; Whitefish, MT, U.S. Schmidt, W.C. and K.J. McDonald (comps).
Gen. Tech. Rep. INT-GTR-319. Ogden, UT: U.S.D.A., Forest Service, Intermountain
Research Station. pp. 452-460.
Comments:
Demonstration plantings on each site include ten-tree row plots of various
species of the genus Larix.
On all sites in this test series about ten percent mortality occurred immediately
after planting. 1998 - Lake Creek location survival is now about 60% (frost)
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