Abstract
Abstract One hundred eighteen sources of eastern redcedar and 26 sources of Rocky Mountain juniper were established as a provenance test near Brookings, SD, in 1980. Height, crown width, survival, branch angle, foliage density, number of terminal leaders, sex, flowering, and the incidence of three diseases were recorded after 10 yr. ANOVA, Chi-square, simple and rank correlation, cluster analysis, and discriminant analysis techniques were used to analyze the data. Eastern redcedar exhibited better overall performance for windbreak purposes than Rocky Mountain juniper. Eastern redcedar originating in central Nebraska exhibited the best combination of height, survival and crown characteristics. Much of the eastern redcedar planted in the Great Plains 30 or more years ago appears to have been grown from seed collected in central Nebraska. Selection for fast growing sources may begin 2 or 3 yr after field planting, while the ability to select fast growing individuals within sources was only moderate after 5 yr. Correlations among traits after 10 yr were generally weak. North. J. Appl. For. 12(1):30-35.
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