Performance of Northern White-Cedar in Central Illinois
Growth and survival of 20 provenances of northern white-cedar in the nursery and to age 12 in 3 test plantings in east central Illinois were examined. Survival at age 12 exceeded 95 percent in all tests. Total height differed significantly among provenances at age 4 in the nursery and at greater ages in all tests except after the first and second growing seasons following extensive and severe foliage injury during the winter of 1970-71. Height rankings of provenances varied between test sites and with age on the same site. Provenances from isolated occurrences south of the main range of the species were shortest at age 12. Lack of a well defined geographic pattern of variation may reflect the influence of localized lowland and upland ecotypes. The excellent performance of the species in all tests supports its use for a variety of types of barrier and shelter plantings.
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Author(s): J. J. Jokela, C. L. Cyr
Publication: Tree Improvement and Genetics - Lake States Forest Tree Improvement Conference - 1977