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Douglas-fir Seed Orchard Problems--A Progress Report

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Abstract:

In the mid-1960's, the problems of graft incompatibility, pollen contamination and slow and cyclic seed production caused Douglas-fir seed orchards to lose favor. Solutions now appear practical to graft incompatibility through providing compatible rootstocks and to pollen contamination through delaying floral bud development with water spray applications. The problem of slow and cyclic seed production is still unsolved.

Document Type: Journal Article

Affiliations: Plant Geneticist, Forestry Sci. Lab., Pac. NW Forest and Range Exp. Sta., U.S. Forest Serv., Corvallis, Ore.

Publication date: March 1, 1972

More about this publication?
  • The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.
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