PT - JOURNAL ARTICLE AU - Doede, David L TI - Genetic variation in Broadleaf Lupine (<em>Lupinus latifolius</em>) on the Mt Hood National Forest and implications for seed collection and deployment AID - 10.1353/npj.2005.0018 DP - 2005 Mar 20 TA - Native Plants Journal PG - 36--48 VI - 6 IP - 1 4099 - http://npj.uwpress.org/content/6/1/36.short 4100 - http://npj.uwpress.org/content/6/1/36.full SO - NATIVE PLANTS JOURNAL2005 Mar 20; 6 AB - Analysis of a common-garden study of broadleaf lupine (Lupinus latifolius Lindl. ex J.G.Agardh ssp. latifolius [Fabaceae]) indicates that use of watershed delineations is better than use of plant association series for determining seed zones on the Mt Hood National Forest. Risk analysis further confirmed that only 4 seed zones are required, providing a reasonable compromise between managing costs and maintaining local adaptation. Overall, moderate amounts of genetic variation were found in 84 seed sources. Two principal components (PCs) summarized 58% of the variation in 24 measured traits, and variation in PC scores was significantly correlated with topographic, geographic, and climatic variables. Regression analyses showed that these variables accounted for 47% of the variation in the first PC and 34% of the variation in the second PC.