First-Year Field Performance of Douglas-fir Seedlings in Relation to Nursery Characteristics


First-year field performance of 48 Douglasfir seedling samples from six nurseries and nine seed sources was analyzed in relation to nursery measurements of seedling morphology, phenology, and vigor. Height at lifting accounted for 84 percent of the variation in first-year field height, while root dry weight and stem diameter at lifting had the highest correlations with first-year height growth (r2 = 0.43 for both). A combination of phenological, morphological, and physiological characteristics yielded the best predictions of field performance (e.g., root dry weight at lifting combined with two vigor-test measurements accounted for 63 percent of the variation in first-year height growth). All correlations of nursery characteristics with first-year field survival were non significant. First-year height growth and frequency of multiple leaders in the field were negatively related (r2 = 0.16).
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Publication Forest Nursery Proceedings
Event Tumwater, WA - 1986
Author Steven K. Omi, Glenn T. Howe, and Mary L. Duryea
Published 1986/08/12
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