Needle-Bearing Internodes on Western White Pine Reproduction in Relation to Blister Rust Infection
Abstract:It has been quite definitely established that the current season's shoots of western white pine are relatively resistant to infection by blister rust, and to a lesser extent that this resistance is actually a characteristic of the needles on that year's growth. To obtain information indicative of the proportion of the target comprised by needles of the current season, 24 young pine trees were studied somewhat in detail. Although the data are by no means considered final, they are presented here as an approximate indication of the relative numbers of slightly and highly susceptible needles present on young western white pines of various ages.
Document Type: Journal Article
Affiliations: Division of Forest Pathology, Bureau of Plant Industry, Branch Office maintained at Portland, Oreg., in cooperation with Forest Service, U. S. Department of Agriculture
Publication date: January 1, 1940
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- 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.
2015 Impact Factor: 1.476
Ranking: 22 of 66 in forestry
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