. Biology of rust resistance in forest trees : proceedings of a NATO-IUFRO advanced study institute, August 17-24, 1969. Trees; Pine; Trees; Rust diseases. 0 ? ? SEEDLING CHECKS GRAFT CHECKS RESISTANT TREES Figure 8. Numbers of blister rust cankers per 100 white pine seedlings (2-3 ft tall) in a forest opening at Whyte, Minn. Legend boxes show average infection rates. Graft check plot values have been multiplied by to arrive at a corrected infection index for the graft canker Please note that these images are extracted from scanned page images that may have been digitally enhanced
. Biology of rust resistance in forest trees : proceedings of a NATO-IUFRO advanced study institute, August 17-24, 1969. Trees; Pine; Trees; Rust diseases. 0 ? ? SEEDLING CHECKS GRAFT CHECKS RESISTANT TREES Figure 8. Numbers of blister rust cankers per 100 white pine seedlings (2-3 ft tall) in a forest opening at Whyte, Minn. Legend boxes show average infection rates. Graft check plot values have been multiplied by to arrive at a corrected infection index for the graft canker 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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Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
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Keywords: ., bookauthoruni, bookcentury1900, booksubjectpine, booksubjecttrees
