Root morphology and growth of bare-root seedlings of Oregon white oak

Peter Gould; Connie Harrington

Treesearch

Root morphology and growth of bare-root seedlings of Oregon white oak

Formally Refereed

Authors:

Peter Gould, Connie Harrington

Year:

2009

Type:

Scientific Journal

Station:

Pacific Northwest Research Station

Source:

Tree Planters' Notes. 53(2): 22-28

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Abstract

Root morphology and stem size were evaluated as predictors of height and basal-area growth (measured at groundline) of 1-1 Oregon white oak (Quercus garryana Dougl. ex Hook.) seedlings planted in raised beds with or without an additional irrigation treatment. Seedlings were classified into three root classes based on a visual assessment of the fibrosity of their root systems. Early-season and late-season height and basal-area growth differed significantly among root classes after accounting for initial seedling size. Irrigation significantly increased late-season height growth, but not the other growth increments. Recommendations are made for grading seedlings to increase the growth of those that are outplanted.

Keywords

Garry oak, artificial regeneration, restoration, Pacific Northwest

Citation

Gould, P.J.; Harrington, C.A. 2009. Root morphology and growth of bare-root seedlings of Oregon white oak. Tree Planters' Notes. 53(2): 22-28.