Douglas-fir Seed Orchard Problems--A Progress Report
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: 1972-03-01
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