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Filtering by: Subject Ceanothus velutinus Decade 1960-1969

Heat as a factor in germination of seeds of Ceanothus velutinus var. laevigatus T. & G.

Creator:

Gratkowski, H.

Resource Type:

Dissertation

Full Text:

Layer • • 69 Shrub Layer. •• 72 Herbaceous Species ...... ....... 77 CEANOTHUS SEEDS FROM DUFF AND
Effect of snowbrush on the establishment and growth of Douglas-fir seedlings

Creator:

Scott, William

Abstract:

Six, recent clear cut areas were selected in the Douglas-fir zone of the Western Cascade Range of Oregon to determine the environmental and nutritional effects that snowbrush has on the establishment and growth of Douglas-fir seedlings. One thousand eighty milacre sample plots on the six clear cuts were used to...

Resource Type:

Masters Thesis

Full Text:

firmly established. Snowbrush (Ceanothus velutinus, Dougl.) occurs throughout the Cascade Range in
Snowbrush, Ceanothus velutinus Dougl., its ecology and role in forest regeneration in the Oregon Cascades

Creator:

Zavitkovski, J.

Abstract:

The ecological and silvicultural importance of snowbrush, Ceanothus velutinus, in the areas west of the summit of the Oregon Cascades was studied. Particular attention has been given its nitrogen- fixing ability under both field and greenhouse conditions. On west slopes of the Oregon Cascades snowbrush occurs above 2, 500 feet...

Resource Type:

Dissertation

Full Text:

Title SNOWBRUSH, CEANOTHUS VELUTINUS DOtJGL., ITS ECOLOGY AND ROLE IN FOREST REGENERATION IN THE
Heat as a factor in germination of seeds of Ceanothus velutinus var. laevigatus T. & G.

Creator:

Gratkowski, H.

Resource Type:

Dissertation

Full Text:

VELUTINUS VAR. LAEVIGATAS T. & G, by HENRY JOHN GRATKOWSKI A THESIS submitted to OREGON STATE