Growth response of two conifer species to their native soil and mycorrhiza among seed sources along an elevational cline

dc.contributor.advisorPeterson, R.L.
dc.contributor.advisorHusband, Brian C.
dc.contributor.advisorMassicotte, H.B.
dc.contributor.authorWagg, Cameron David of Integrative Biologyen_US of Guelphen_US of Scienceen_US
dc.description.abstractMountain ecosystems consist of elevational dines in climatic and soil conditions, which can influence tree growth morphology and adaptation. This study characterizes influences of seed, mycorrhizas, and soil from three altitudes on seedling growth of lodgepole pine ('Pinus contorta' Dougl. var. 'latifolia' Engelm.) and interior spruce (' Picea glauca' (Moench) Voss * 'Picea engelmannii' Parry ex Engelm.). Soil fertility and seedling growth declined with elevation. Growth differed among seed sources in interior spruce, suggesting genetic differences, but not lodgepole pine. The presence of soil microflora improved growth in the high elevation soil and reduced growth in the lower elevational soil. Ectomycorrhizal (EM) composition and influence on growth also varied among soils, and soil-specific EMs in high elevation soil greatly improved growth suggesting their importance to seedling development. Lodgepole pine from high elevation appears to depend on EM associations for growth. Interior spruce, however, appeared to have a slower growth in higher elevation populations, but this does not appear to be adaptive to its native soil environment. Further research is required to demonstrate the extent to which these strategies benefit seedling growth and survival under field conditions.en_US
dc.publisherUniversity of Guelphen_US
dc.rights.licenseAll items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.
dc.subjectseedling growthen_US
dc.subjectlodgepole pineen_US
dc.subjectinterior spruceen_US
dc.subjectsoil fertilityen_US
dc.titleGrowth response of two conifer species to their native soil and mycorrhiza among seed sources along an elevational clineen_US


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