The relative efficiencies of using different methods to detect genetic variation in cold hardiness were evaluated, and the adaptive variation among aspen provenances was further studied. This thesis is organized as three ...

Tree breeding zones are delimited areas where trees are selected and bred, and their progeny are planted. Within these zones, the level of adaptation between seedlings and planting sites is controlled to ensure adequate ...

To understand the pattern of adaptive variation of jack pine in north central Ontario better, short-term provenance tests were established. Seed was collected from 64 sites to the east and west of Lake Nipigon and grown ...

Trembling aspen (Populus tremuloides Michx.) is the most widely distributed and probably most genetically varied woody species in North America. Four provenances of trembling aspen seedlings from northwestern Ontario ...

To help clarify the taxonomy of the two closely related North American firs subalpine fir {Abies lasiocarpa (Hook.) Nutt.) and balsam fir {Abies balsamea (L.) Mill.) in western Canada and the United States, 10 populations ...

The Ojibway (Anishinabe) of Lac Seul First N ation reside in the transition zone of the Great Lakes-St. Lawrence and southern Boreal Forest regions of northwestern Ontario, Canada. Hunting and gathering of certain animal ...

Larix Iyallii Parl, (alpine larch) is a small to medium tree restricted to the timberline zone of the mountainous regions of the Pacific Northwest of the United States and the adjacent southwest of Canada. To examine ...

Plus-tree selection of black spruce [Picea mariana (Mill.) B.S.P.) based on increment of wood volume per unit of crown (growing space efficiency) has the potential to improve yield per hectare and avoid biased selection ...

Genetic diversity can be seen as a fundamental element in forest sustainability. Information about the genetics of trees can be obtained from provenance studies. Previous research has demonstrated that white spruce exhibits ...