Distribution of Pine (Pinus spp.) in the South Nahanni and Flat Rivers Region, Northwest Territories

1974 ◽  
Vol 4 (4) ◽  
pp. 555-557 ◽  
Author(s):  
George W. Scotter
Keyword(s):  
Northwest Territories ◽  
Lodgepole Pine ◽  
Rocky Mountain ◽  
Jack Pine ◽  
The South ◽  
Pinus Spp

Specimens of jack pine (Pinusbanksiana Lamb.), Rocky Mountain lodgepole pine (Pinuscontorta spp. latifolia (Engelm.) Critchfield) and hybrids of those two species were collected in the South Nahanni and Flat Rivers region. Those collections extend the previously known range of pines within that region.

The association of young weevil-killed pine and spruce terminals with Phellinuspini in western Canada

1996 ◽  
Vol 26 (12) ◽  
pp. 2224-2226 ◽  
Author(s):  
Kenneth I. Mallett ◽  
David W. Langor
Keyword(s):  
Northwest Territories ◽  
Lodgepole Pine ◽  
White Spruce ◽  
Jack Pine ◽  
Wood Chips ◽  
Western Canada ◽  
Decayed Wood ◽  
Agar Media

Terminals of jack pine (Pinusbanksiana Lamb.), lodgepole pine (Pinuscontorta Dougl. ex Loud. van latifolia Engelm.), and white spruce (Piceaglauca (Moench) Voss), killed by either Pissodesstrobi (Peck) or Pissodesterminalis Hopping, were sampled from 17 sites in Alberta, Saskatchewan, Manitoba, and the Northwest Territories. The weevil-killed terminals were examined for decay caused by Phellinuspini (Brot.:Fr.). Wood chips taken from the terminals were placed on agar media in an attempt to isolate P. pini. No decay was observed in the terminals. Of 192 isolations from freshly killed terminals, 32% were sterile. Phellinuspini was not isolated from any of the terminals. The predominant fungi found were Aureobasidiumpullulans (de Bary) Arn., Hormonemadematioides Lagerberg & Melin, and Phialemoniumdimorphosporum W. Gams & W.B. Cooke. Weevil-killed terminals from lodgepole pine and white spruce that had been dead for up to 6 years were sampled for the presence of P. pini. The fungus was not found in any of the decayed wood in the terminals, although several other unidentified Basidiomycete species were isolated.

Post-1.9 Ga evolution of the south Rae craton (Northwest Territories, Canada): A Paleoproterozoic orogenic collapse system

2021 ◽  
Vol 355 ◽  
pp. 106105
Author(s):  
Daniele Regis ◽  
Sally Pehrsson ◽  
Edith Martel ◽  
Eric Thiessen ◽  
Tony Peterson ◽  
...  
Keyword(s):  
Northwest Territories ◽  
The South ◽  
Orogenic Collapse

scholarly journals Cold hardiness of white spruce, black spruce, jack pine, and lodgepole pine needles during dehardening

2017 ◽  
Vol 47 (8) ◽  
pp. 1116-1122 ◽  
Author(s):  
Rongzhou Man ◽  
Pengxin Lu ◽  
Qing-Lai Dang
Keyword(s):  
Picea Glauca ◽  
Pinus Banksiana ◽  
Cold Hardiness ◽  
Black Spruce ◽  
Lodgepole Pine ◽  
White Spruce ◽  
Visual Assessment ◽  
Jack Pine ◽  
Pine Needles ◽  
Late Winter

Conifer winter damage results primarily from loss of cold hardiness during unseasonably warm days in late winter and early spring, and such damage may increase in frequency and severity under a warming climate. In this study, the dehardening dynamics of lodgepole pine (Pinus contorta Dougl. ex. Loud), jack pine (Pinus banksiana Lamb.), white spruce (Picea glauca (Moench) Voss), and black spruce (Picea mariana (Mill.) B.S.P.) were examined in relation to thermal accumulation during artificial dehardening in winter (December) and spring (March) using relative electrolyte leakage and visual assessment of pine needles and spruce shoots. Results indicated that all four species dehardened at a similar rate and to a similar extent, despite considerably different thermal accumulation requirements. Spring dehardening was comparatively faster, with black spruce slightly hardier than the other conifers at the late stage of spring dehardening. The difference, however, was relatively small and did not afford black spruce significant protection during seedling freezing tests prior to budbreak in late March and early May. The dehardening curves and models developed in this study may serve as a tool to predict cold hardiness by temperature and to understand the potential risks of conifer cold injury during warming–freezing events prior to budbreak.

scholarly journals Effects of Lodgepole Pine Dwarf Mistletoe, Arceuthobium americanum, on Jack Pine, Pinus banksiana, Growth in Manitoba

2004 ◽  
Vol 118 (4) ◽  
pp. 595 ◽  
Author(s):  
Brock Epp ◽  
Jacques C. Tardif
Keyword(s):  
Pinus Banksiana ◽  
Growth Models ◽  
Lodgepole Pine ◽  
Wood Quality ◽  
Basal Area ◽  
Jack Pine ◽  
Dwarf Mistletoe ◽  
Tree Form ◽  
Arceuthobium Americanum ◽  
Pine Trees

The Lodgepole Pine Dwarf Mistletoe (Arceuthobium americanum Nutt. ex Engelm.) is an important pathogen of Jack Pine (Pinus banksiana Lamb.). Dwarf Mistletoe alters tree form, suppresses growth, and reduces volume and overall wood quality of its host. Stem analysis and a 3-parameter logistic regression model were used to compare the growth of heavily and lightly to non infected Jack Pine trees. At the time of sampling, no significant reduction in diameter at breast height and basal area were observed in heavily infected trees. However, a significant reduction in height and volume and an increase in taper were observed in heavily infected trees. Growth models predicted a 21.1% lower basal area, 23.4% lower height and 42.1% lower volume by age 60 for the high infection group.

Ectomycorrhizal communities of ponderosa pine and lodgepole pine in the south-central Oregon pumice zone

Mycorrhiza ◽  
2015 ◽  
Vol 26 (4) ◽  
pp. 275-286 ◽  
Author(s):  
Maria O. Garcia ◽  
Jane E. Smith ◽  
Daniel L. Luoma ◽  
Melanie D. Jones
Keyword(s):  
Ponderosa Pine ◽  
Lodgepole Pine ◽  
The South ◽  
South Central ◽  
Ectomycorrhizal Communities
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