Effects of treatment and seed source on germination of eastern redcedar seed /

Abstract

Germination of eastern redcedar Uuniperus virginiana L.) seeds was best with a 96-hour soak in citric acid (10,000 ppm), with 6 weeks of moist-warm (24OC) stratification, and 10 weeks of moist-cold (5°C) stratification. Geographic seed sources responded differently to treatment. Use of fresh seeds could reduce the time in moist-warm strat-ification, would improve germination, and would reduce interaction between seed source and treatment. 'Headquarters is in Fort Collins, in cooperation with Colorado State University.