Several hundred two year old Douglas-fir (Pseudotsuga
menziesii (Mirb.) Franco) seedlings were planted in an enclosure
designed to permit control of soil moisture. The seedlings came
from five seed sources in southern ...
The physiological and biochemical responses of Douglas-fir seeds to stratification, redrying, storage and subsequent germination were determined. Stratification increased seed vigor, embryo and gametophyte
phosphorylati ...
The physiology of dormancy of western hemlock (Tsuga heterophylla (Raf.) Sarg.) seedlings was examined. Many areas proved to exhibit similarities to those elucidated for Douglas-fir, although significant differences were ...
This study was divided into two parts. Part I was a quantitative description of some aspects of plant-water relations in Douglas-fir seedlings, and part II was tests of several techniques of screening selected families o ...
A rapid and efficient procedure that required no partitioning was developed for the purification of abscisic acid (AbA) from the needles of Douglas-fir seedlings. Extracted needle pigments were removed by a
PVP column a ...
A quantitative and predictive measure of seedling vigor during the regeneration chain would be of utmost help for forest regeneration work. This was the impetus
to study the possibility of using abscisic acid (ABA) conc ...
In study 111, four Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stocktypes (1-0, 2-0 standard nursery run and low density bareroot seedlings, and 1 year old container stock) were outplanted in a randomized
incompl ...
Zaerr, Joe B.; Lavender, Denis P.; Oregon State University. Forest Research Laboratory(Corvallis, Or. : Forest Research Laboratory, School of Forestry, Oregon State University, 1976-06)
Zaerr, Joe B.; Lavender, Denis P.; Oregon State University. Forest Research Laboratory(Corvallis, Or. : School of Forestry, Forest Research Laboratory, Oregon State University, 1972)
Lavender, Denis P.; Atherton, George H.; Oregon State University. Forest Research Laboratory(Corvallis : Forest Research Laboratory, Oregon State University, 1964-01)
One of the largest problems facing the forester in the Pacific Northwest today is the economical, rapid rehabilitation of cut-over lands. Many of these cut-over lands are planted to Douglas-fir [Pseudotsuga menziesii (Mi ...
Hermann, Richard K.; Lavender, Denis P.; Oregon State University. Forest Research Laboratory(Corvallis, Or. : Oregon State University, School of Forestry, 1979-12)
Lavender, Denis P.; Overton, W. Scott; Oregon State University. Forest Research Laboratory(Corvallis, Or. : Oregon State University, School of Forestry, Forest Research Laboratory, 1972-08)