Essays about: "Pinus sylvestris"

Showing result 1 - 5 of 157 essays containing the words Pinus sylvestris.

  1. 1. Phenotypic differences between plus-tree progenies of Sitka spruce (Picea sitchensis) and a comparison with Norway spruce (Picea abies)

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Teresa López-Andújar Fustel; [2019]
    Keywords : Picea sitchensis; growth; heritability; phenotypic and genetic correlations;

    Abstract : Forest productivity and economic gains are two of the most important aspects to consider when managing forests these days. The performance of these depends on rotation periods and yields providing new opportunities to maximize earnings from the forest site and plant material. READ MORE

  2. 2. Genetic diversity and hardiness in Scots pine from Scandinavia to Russia

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Jenny Olsson; [2019]
    Keywords : Pinus sylvestris; recolonization history; genetic diversity; cold hardiness; clinal variation;

    Abstract : The postglacial recolonization of northern Europe supposedly originated from Western Europe and the Russian Plain, however, recent molecular and macrofossil-based investigations suggest that the history may be more complex than previously thought. This study aims to investigate the genetic diversity and population structure of Scots pine from Scandinavia to Russia to re-evaluate its recolonization history, and to examine whether the pattern of spatial genetic diversity has any adaptive significance. READ MORE

  3. 3. Maskinell ringbarkning - effektiv metod för att reducera uppslag av asp i föryngringen

    University essay from SLU/School for Forest Management

    Author : Jakob Rehult; [2019]
    Keywords : rotskott; högstubbe; knäckesjuka;

    Abstract : Pine twisting rust (Melampsora pinitorqua) often affects young Scots pine (Pinus sylvestris) plants and causes quality and growth reductions. The attacks have negative economic consequences in commercial forestry. The alternate host for Pine twisting rust is Aspen (Populus tremula). READ MORE

  4. 4. Tree species classification with YOLOv3 : Classification of Silver Birch (Betula pendula) and Scots Pine (Pinus sylvestris)

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Samuel Norling; [2019]
    Keywords : ;

    Abstract : Automation of tree species classification during a forest inventory could potentially provide more efficiency and better results for forest companies and stakeholding agencies. This thesis investigates how well a state of the art object detection system, YOLOv3, performs this classification task. READ MORE

  5. 5. Skogshistoria kommer upp till ytan : en akvatisk inventering efter samiskt påverkad död ved i tjärnar kring Mattaur-älven

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Lina Arnesson Ceder; [2019]
    Keywords : skogshistoria; barktäkter; samer; subfossil; tall; tjärn; Forest history; bark peel; sami; subfossil; pine tree; pond;

    Abstract : I tusentals år har samer levt i norra Fennoskandia och brukat skogen för att värma upp kåtor och låta renar beta av laven som växer på träden och marken. Man har även använt tallens, (Pinus sylvestris L), innerbark som kolhydratkälla och förvaring. Dessa så kallade barktäkter lämnar karakteristiska spår i träden. READ MORE