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    Author(s): Burt R. McConnell
    Date: 1960
    Source: PNW Old Series Research Notes No. 187, p. 1-4
    Publication Series: Scientific Journal (JRNL)
    Station: Pacific Northwest Research Station
    PDF: Download Publication  (200 KB)


    A number of investigations have shown that treatment with gibberellic acid can replace the cold period required to break dormancy in certain seeds. In several instances, acid treatment has also caused significant increases in the root and top growth of seedlings. This combination of abilities suggests that the use of gibberellic acid in reseeding bitterbrush merits serious consideration.

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    McConnell, Burt R. 1960. Effect of gibberellic acid and cold treatments on the germination of bitterbrush seed. PNW Old Series Research Notes No. 187, p. 1-4

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