Growth Rate Differences among Big Sagebrush (Artemisis Tridentata) Accessions and Subspecies Utah
- McArthur, E. D.
- Welch, B. L.
DOIAbstract
Even-aged plants of 21 big sagebrush (Artemisia tridentata) accessions were grown in a uniform garden to test growth parameter variation. Growth parameters measures (height, crown diameter, yield, and annual nonfloral leader growth) were scored after the 1975, 1976, and 1977 growing seasons. Nested analyses of variance and mean comparison tests showed significant (p<0.05) accession and subspecies differences in each measure, each year. On a subspecies level, basin big sagebrush (A.t. ssp. tridentata) exceeded the other two subspecies (mountain big sagebrush = A.t. vaseyana, Wyoming big sagebrush = A.t. wyomingensis) for each character. In general, the values for the last two subspecies were not significantly different, but mountain big sage...
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