Skip to main content

Notes: Stratification of Seeds of Western and Utah Juniper

Buy Article:

$21.50 plus tax (Refund Policy)

Seeds of western juniper (Juniperus occidentalis subsp. occidentalis Hook.) and Utah juniper [J. osteosperma (Tort.) Little] are highly dormant when freshly harvested. Cool-moist stratification at 5°C for 14 weeks in vermiculite enhanced subsequent emergence of seedlings of both species, but total emergence was still low. The year of seed production greatly influences the viability of seedlots. Dry storage for 1 to 4 years at room temperatures did not enhance germination. Outdoor stratification, over winter, in sand, enhances subsequent emergence depending on the environment of the stratification site. The year of seed production also interacts with outdoor situations. Repeat stratification treatments, interrupted by 8-week continuously wet-emergence-assay periods in the greenhouse and dry storage during the summer were cumulative for increased seed germination of both species. Interrupted treatments were more effective than continuous stratification in excess of the optimum duration to enhance germination. Stratification in aqueous solutions with near saturation of the solution with oxygen increased subsequent emergence of seedlings of western and Utah juniper to about 50%. Similar treatments using aqueous solutions of 0.289 m mol L-1 gibberelin (GA3) enhanced subsequent emergence of seedlings of western juniper to better than 80%. For. Sci. 34(4):1059-1066.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: Juniperus occidentalis; Juniperus osteosperma; after-ripening; seed physiology

Document Type: Miscellaneous

Affiliations: Statistician, Range, Forestry, and Wildlife Division, College of Agriculture, University of Nevada, 920 Valley Road, Reno, NV 89512

Publication date: 1988-12-01

More about this publication?
  • Important Notice: SAF's journals are now published through partnership with the Oxford University Press. Access to archived material will be available here on the Ingenta website until March 31, 2018. For new material, please access the journals via OUP's website. Note that access via Ingenta will be permanently discontinued after March 31, 2018. Members requiring support to access SAF's journals via OUP's site should contact SAF's membership department for assistance.

    Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2016 Impact Factor: 1.782 (Rank 17/64 in forestry)

    Average time from submission to first decision: 62.5 days*
    June 1, 2016 to Feb. 28, 2017

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
  • Submit a Paper
  • Membership Information
  • Author Guidelines
  • Podcasts
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more