Picea glauca

Hodson MJ, Sangster AG. Mineral deposition in the needles of white spruce [Picea glauca (Moench.) Voss]. Ann Bot 1998 82 375-385. 

SPRUCE, black Picea glauca var. densata BaUey)... 

Harris CS, Lambert J, Saleem A, et al (2008) Antidiabetic activity of extracts from needle, bark, and cone of Picea glauca organ-specific protection from glucose toxicity and glucose deprivation. Pharm Biol 46 126-134... 

White spruce Picea glauca J stages Snowshoe hare Camphor Sinclair etfll., 1988... 

Spruce and hemlock oils are produced in Canada and the Northeast of the United States by steam distillation of needles and twigs from Picea mariana (Mill.) B.S.P. (black spruce), Picea glauca (Moench) Voss (white spruce), Tsuga canadensis (L.) Carr. (Hemlock spruce), and related species. They are very pale to light yellow liquids with a pleasant odor reminiscent of pine needles. 

In measurements of the fate of phosphamidon applied as an aqueous solution on spruce trees (Picea glauca spp) (3) it was shown that while there were measurable residues on the trees a rapid loss of the chemical occured. The rapid decrease in concentration (ppm wt/wt) was partially attributed to a dilution effect from the rapidly expanding new foliage. 

Picea glauca (Moench) Voss./White spruce 29(8)... 

Milled wood lignins (MWLs) Spruce Picea glauca) CyHy 5 02(H20)o 4s(OCH3) 94 1.46 0.28 1.18... 

Koch/Tamarack Larix occidentalis Nutt./ Western larch Libocedrus decurrens Torn/ Incense cedar Picea engelmanni Parry ex Engelm./Engelman spruce Picea glauca (Moench) Voss/ White spruce... 

Quoted ratios of drying times (Table 8.3) to achieve the same final wood quality using microwaves (and radiofrequencies) to those from conventional schedules range from 0.25 for white sprace, Picea glauca, (Miller, 1971) to 0.03 for Douglas... 

Two studies have attempted to use fluorescence to distinguish different wood species. Sum et al. [189] measured the fluorescence emission spectra excited at 308 nm in the heartwood and sapwood of jack pine (Pinus banksiana), white spruce (Picea glauca) and balsam fir (Abies balsamea). Very broad emission between 400 and 600 nm occurs for all these species. Pandey et al. [190] examined the fluorescence of several tropical hardwoods. The fluorescence spectra of the wood extracts were highly dependent on the excitation wavelength, while those of dry solid woods were not. 

Polcin and Rapson [12] have shown that hydrosulfite predominantly attacks simple quinoid, a,p-unsaturated aldehyde and anthocyanidine structures found in groundwood pulps prepared from western hemlock (Tsuga heterophylla) and eastern spruce (Picea glauca). A few years later, de Vries et al. [13,14] have demonstrated that hydrosulfite can reduce many types of aldehydes and ketones in solution according to the mechanism shown in Figure 13.1. Ketones were found to react sluggishly in water, esters are hydrolyzed, while carboxylic acids and amines are not reduced. 

ALFARO, R.I., KISS, G.K., YANCHUK, A., Variation in the induced resin response of white spruce, Picea glauca, to attack by Pissodes strobi. Can J For Res., 1996,26, 967-972. 

Spruce fir (Picea excelsa Lam Link, Picea glauca) 49-57 27-33 7-11 10-11 54-63... 

Quaking aspen (Populus tremoides Michx) 19 White spruce (Picea glauca (moench) Voss.) 29... 

Dried thermomechanical pulp (TMP) (mature loblolly pine, Pinus taeda) was obtained from the U.S. Department of Agriculture at Pineville, Mississippi. Steam pressures used during the TMP process were 4, 8, and 12 bar. Spruce (Picea glauca) chips were refined at 103 kPa, followed by atmospheric refining to 600 mL Canadian standard fi eeness (CSF). Spruce pulps were further refined to 70 mL CSF after enzyme treatments using a PFI mill to reduce the freeness. 

Definition Oil obtained from needles and twigs of Picea glauca, P. mariana, or Tsuga canadensis Properties Colorless to It. yel. oil, pleasant odor Toxicoiogy LD50 (oral, rat) > 5 g/kg, (skin, rabbit) > 5 g/kg low toxicity by ing. and skin contact TSCA listed... 

Osmotic pressure is correlated with plant development and differentiation, appropriate treatment by the common osmoticums such as sucrose, mannitol and polyethylene glycol (PEG) enhances the embryogenesis and organogenesis in Solarium melongena (Mukherjee et al.,1991), Brassica napus (Ferrie Keller, 2007) and white spruce Picea glauca) (Misra et al., 1993). 

Attree, S.M., Moore, D., Sawhney, V.K. Fowke, L.C. (1991). Enhanced maturation and desiccation tolerance of white spruce [Picea glauca (Moench.) Voss] somatic embryos Effects of a non-plasmolysing water stress and abscisic acid. Annals of Botany, 68 519-525... 

Kong, L. Attree, S.M. Fowke, L.C. (1998). Effects of polyethylene glycol and methylglyoxal bis(guanylhydrazone) on endogenous polyamine levels and somatic embryo maturation in white spruce Picea glauca). Plant Science, Vol. 133, No. 2, pp 211-220, ISSN 0168-9452. 

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