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    Author(s): Thomas W. Childs; Ernest Wright
    Date: 1956
    Source: PNW Old Series Research Notes No. 132, p. 1-5
    Publication Series: Scientific Journal (JRNL)
    Station: Pacific Northwest Research Station
    PDF: View PDF  (320 KB)


    Heart rot is sometimes common in pole-size Douglas-firs that had been heavily live-pruned for trail clearance when they were long-crowned saplings, This observation suggested that benefits from pruning for quality increment might be reduced appreciably by heart rot infections occurring through pruning wounds. The study described in this paper was therefore undertaken to determine the relationship between pruning and incidence of heart rot in young Douglas-fir.

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    Childs, Thomas W.; Wright, Ernest. 1956. Pruning and occurrence of heart rot in young Douglas-fir. PNW Old Series Research Notes No. 132, p. 1-5

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