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Filtering by: Keyword Douglas fir -- Growth -- Oregon

Effect of field stratification on Douglas Fir seed germination

Effect of ground cover on seedling germination and survival

The relationship of stocking percent to number of trees per acre on artificially seede...

Date of lifting for survival of Douglas-fir seedlings

Dusky-footed woodrat in young douglas fir

A preliminary report on the Douglas fir spot seeding experiment

Seeding dates and Douglas fir germination

Stratified Douglas fir seed sown in April, May and June

Viability of Douglas fir seed after storage in the cones

Surveying forest lands for stocking