. Biology of rust resistance in forest trees : proceedings of a NATO-IUFRO advanced study institute, August 17-24, 1969. Trees; Pine; Trees; Rust diseases. pi . 1 wlf» tbskjr-. Figure 3. Pinus wallichiana growing in xeric habitats; A. with Cedrus deodara and Abies pindrow in Dir, B. with C. decdara in Chitral, C. with A. pindrow and Picea smithiana in northwest Swat, and D. in Parachinar. The above description indicates a clear distinction in the three types of blue pine habitats. It is also quite evident that blue pine in West Pakistan is very plastic and is adaptable to extreme habitats. The
. Biology of rust resistance in forest trees : proceedings of a NATO-IUFRO advanced study institute, August 17-24, 1969. Trees; Pine; Trees; Rust diseases. pi . 1 wlf» tbskjr-. Figure 3. Pinus wallichiana growing in xeric habitats; A. with Cedrus deodara and Abies pindrow in Dir, B. with C. decdara in Chitral, C. with A. pindrow and Picea smithiana in northwest Swat, and D. in Parachinar. The above description indicates a clear distinction in the three types of blue pine habitats. It is also quite evident that blue pine in West Pakistan is very plastic and is adaptable to extreme habitats. The forests of Parachinar, with intermediate soil characteristics, intermediate climatic conditions, and variable vegetation, although geo- graphically isolated from other zones, form a connecting link between the blue pine of Sulaiman range and that of Chitral, Dir, and Swat. It can be hypothesized that the two isolated southwestern populations of blue pine were once confluent. In the course of time, drying up of the. 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
