. Biology of rust resistance in forest trees : proceedings of a NATO-IUFRO advanced study institute, August 17-24, 1969. Trees; Pine; Trees; Rust diseases. 132 S. K. HYUN. Figure 7. A thinned plantation of P. koraiensis 40 years old. stems. The rust was identified as Peridermium strobi, the aecial stage of Cronartivm ribioola J. C. Fisch. ex Rabenh. by Professor Hiratsuka (Takagi, 1937). Dr. Takagi failed to find any Ribes spp. around the plantation. Forest pathologists of the Forest Experiment Station of Korea recently reported (not published) damage to a P. koraiensis plantation by blister r
. Biology of rust resistance in forest trees : proceedings of a NATO-IUFRO advanced study institute, August 17-24, 1969. Trees; Pine; Trees; Rust diseases. 132 S. K. HYUN. Figure 7. A thinned plantation of P. koraiensis 40 years old. stems. The rust was identified as Peridermium strobi, the aecial stage of Cronartivm ribioola J. C. Fisch. ex Rabenh. by Professor Hiratsuka (Takagi, 1937). Dr. Takagi failed to find any Ribes spp. around the plantation. Forest pathologists of the Forest Experiment Station of Korea recently reported (not published) damage to a P. koraiensis plantation by blister rust in Kangwondo Province. Plantations 5 to 9 years old and 60 ha in total area located in 3 different sites in Pyongohang County, Kangwondo Province were damaged by blister rust (Fig. 8, 9, and 10). The pathologists reported that 35% of the planted trees were seriously damaged by this disease. However, no blister rust was found in a nearby 15-year-old plantation during 3 years of continuous observation. So far they also failed to find Ribes spp. growing around the infected area. GROWTH PERFORMANCE Growth in the natural stand is quite slow, probably because of cold climate and dry soil. It takes 5 to 30 years to come up to a breast height according to the site condition. Average growth performance of single trees in a natural stand growing on rocky shallow soil is given in Figs. 11 and 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 North Atlantic Treaty Organization; International Union of Forestry Research Organizations; United States. Forest Service; University of Idaho. Washington, D. C. : Forest Service
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Keywords: ., bookauthoruni, bookcentury1900, booksubjectpine, booksubjecttrees
