Seedling Growth of Three Big Sagebrush Subspecies under Controlled Temperature Regimens

Abstract

Seedlings of three subspecies of big sagebrush, Artemisia tridentata, (tridentata, vaseyana, and wyomingensis) were grown for 10 weeks under temperature regimens programed to simulate below-average, average, and above-average conditions during late spring to early summer in the native habitat. Growth of seedlings of all subspecies was reduced under the below-average temperature regimen; but no difference in growth occurred between subspecies under any one regimen.