USDA Forest Service
 

Pacific Southwest Research Station

 

Pacific Southwest Research Station
800 Buchanan Street
West Annex Building
Albany, CA 94710-0011

(510) 559-6300

United States Department of Agriculture Forest Service. USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.

Publications and Products

Order a printed copy
of this publication.

Research Note

Title: Germination and survival of douglas-fir in northern California ... effects of time of seeding, soil type, and aspect

Author: Strothmann, Rudolph O.

Date: 1971

Source: Res. Note PSW-RN-245. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 6 p

Station ID: RN-PSW-245

Description: For best results, direct-seeding of Douglas-fir in northern California should be done in November or December. In trials on two National Forests, sowing in those months resulted in significantly more seedlings than sowing in February or March. Also, more seedlings became established on fine-textured red soils than on coarser gray-brown soils. On red soils, more seedlings developed on south aspects; on gray-brown soils, more developed on north aspects. Some seeds particularly on spring sown plots-did not germinate until the second growing season.

Keywords: Pseudotsuga menziesii, regeneration (artificial), California (northwestern), direct-seeding, seedling survival, loam soils, aspect, seeding date

View and Print this Publication (963 KB)

Citation

Strothmann, Rudolph O.   1971.  Germination and survival of douglas-fir in northern California ... effects of time of seeding, soil type, and aspect.   Res. Note PSW-RN-245. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 6 p.

Last Modified: Nov 18, 2013 12:43:56 PM