Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"Root Competition"”.
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Grass root gaps : an establishment bottleneck limits trees in savannas and excludes them in South Africa's highveld grasslands
… from surviving. It was hypothesized that grass root competition for space eliminates the availability of suitable 'gaps' for tree establishment under high rainfall conditions. Demographic bottlenecks on Acacia species populations were determined by examining the ratio of juvenile plants to adult …
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Negative Effects Of ComMycorrhizal Networks And Roots On Upland Oak Seedlings In Open-Canopy Woodlands And Closed-Canopy Forests
… were grown adjacent to mature oak trees in root exclusion cylinders that alloseedlings access to fungal networks but isolated them from direct root competition. A subset of seedlings was trenched to disconnect them from the network. Response variables were relative growth rate of height and …
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Conditions Responsible For The Success Of Carnivorous Plants In Nutrient-Poor Wetlands
… of fire, prey-derived nutrient availability, and root competition from neighbors on sarracenia alata growth. I found no evidence of belowground competition on growth, nor did belowground competition interact with fire to influence growth. To address the second question, I used carnivorous drosera …
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Aprovechamiento sostenible de las acebedas del Sistema Ibérico Norte: caracterización, crecimiento, propagación, conservación, tratamientos selvícolas y producción de ramilla con fines ornamentales
… In the dense tracts, we have found problems of root competition for water and nutrients while in the open áreas the limitant factors seem to be the high density of the herbage (due to the intense grazing) and the lack of seed rain. In any case, the holly tree sprouts strongly añer being cut, …