. Response of dwarf mistletoe-infested ponderosa pine to thinning. Arceuthobium Propagation; Ponderosa pine Diseases and pests; Ponderosa pine Thinning. o. £ 1945 47 49 51 53 55 57 59 61 63 65 67 69 3 z Year of origin of supporting branch segment Figure 2—Dwarf mistletoe population trends of 54 small, pole-size ponderosa pines: 14 dominants, 14 codominants, and 26 intermediates. Columns represent number of dwarf mistletoe plants originating on each successive year's shoots. Lines represent ascent rate variations of population develop- ment. Projection of bars preceding 1957 above line is an an
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. Response of dwarf mistletoe-infested ponderosa pine to thinning. Arceuthobium Propagation; Ponderosa pine Diseases and pests; Ponderosa pine Thinning. o. £ 1945 47 49 51 53 55 57 59 61 63 65 67 69 3 z Year of origin of supporting branch segment Figure 2—Dwarf mistletoe population trends of 54 small, pole-size ponderosa pines: 14 dominants, 14 codominants, and 26 intermediates. Columns represent number of dwarf mistletoe plants originating on each successive year's shoots. Lines represent ascent rate variations of population develop- ment. Projection of bars preceding 1957 above line is an anomaly resulting from tabulation of formerly latent, invisible plants after they emerged in response to thinning. 5. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Roth, Lewis F; Barrett, James W. (James Willis), 1922-. [Portland, Or. ] : U. S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station