Sökning: "Pinus"
Visar resultat 1 - 5 av 152 avhandlingar innehållade ordet Pinus.
1. Hybridization and Evolution in the Genus Pinus
Sammanfattning : Gene flow and hybridization are pervasive in nature, and can lead to different evolutionary outcomes. They can either accelerate divergence and promote speciation or reverse differentiation. The process of divergence and speciation are strongly influenced by both neutral and selective forces. LÄS MER
2. The isozyme technique - a short-cut to the genes of our forest trees? : illustrations using Pinus sylvestris L
Sammanfattning : .... LÄS MER
3. Pathogens and other threats to Pinus contorta in northern Sweden
Sammanfattning : The background to the large-scale planting of Pinus contorta in northern Sweden is reviewed with an account of the distribution and characteristics ofPi nus contorta within its natural range in western North America. The threatsto successful planting of exotics are discussed in relation to the historicalbackground. LÄS MER
4. Effects of methyl jasmonate on chemical defenses of conifer seedlings in relation to feeding by Hylobius abietis
Sammanfattning : The chemical elicitor methyl jasmonate (MeJA) could replace insecticides in Europe and Asia for protection of young conifers against the pine weevil (Hylobius abietis). This thesis mainly focuses on the effects of MeJA treatment on chemical defenses of conifers from seedling batches with documented field resistance. LÄS MER
5. Chemodiversity and Functions of Monoterpene Hydrocarbons in Conifers
Sammanfattning : .... LÄS MER