Stocking levels and height growth rates of noble fir and
associated species were measured on 51 clearcut study areas within
the Pacific silver fir zone of the Oregon and Washington Cascades.
Clearcut study areas were approximately 20 years old and had either
planted noble fir or natural regeneration of noble...
The Miridae, or plant bugs, associated with noble fir, Abies
procera Rehd., are discussed. Thirty six species of the Miridae were
collected from noble fir. Twenty five of these species are considered
only "visitors" to noble fir. The study does not deal with these
species. Noble fir is a host...
The objectives of this investigation were two-fold: (1) to examine possible seed and cone characteristics and their usefulness as seed maturity indices, and (2) to examine the effects of artificial ripening on seed maturation and germination. Cone fresh weight, cone length, cone specific gravity, cone color, seed fresh weight, seed...
Noble fir (Abies procera Rehd.) is an upper elevation timber species native to the Cascade Range and (occasionally) the Coast Ranges of Washington and Oregon. It has always been a commerical species; however, recent changes in forest practices to increase harvests in the elevations where this tree occurs has caused...
Polymorphic site index curves for noble fir from stem analysis
data were compiled from 54 plot locations. On each plot location,
the tallest dominant noble fir was felled and sectioned. Site index
was based on total height and age at breast height, with index age
at 100 years. A graphical...
Noble fir (Abies procera Rehd.), an important conifer in the Pacific Northwest, is valuable for timber, Christmas trees, and greenery products. A number of tree improvement programs emphasizing genetic improvement of bole volume growth are underway in this species. The purpose of this study was to estimate genetic control of...
Very little is known about thinning 65- to 80- year-old noble fir dominated stands.
There is a need for such information on the Warm Springs Indian Reservation (WSIR),
Oregon where 65- to 80- year-old, high elevation, noble fir dominated stands are being managed. The objectives of this study were to...
