Now showing items 1-8 of 8

    • Breeding avifauna of mature forest stands in the Borki Forest and its dynamics at the turn of the 21st century 

      Rąkowski, Grzegorz; Czarnocki, Krzysztof; Ukalska, Joanna (Forest Research Institute, Sekocin Stary, Poland, 2016-09-15)
      The composition and structure of the breeding bird community in the Borki Forest in north-eastern Poland were investigated during two separate periods: 1994–1996 and 2012–2014. Bird censuses were carried out in three plots ...
    • Characterization and mapping of QTL used in breeding of Scots pine (Pinus sylvestris L.) 

      Nowicka, Aleksandra; Ukalska, Joanna; Simińska, Joanna; Szyp-Borowska, Iwona (Instytut Badawczy Leśnictwa, 2014)
      This paper reports the construction a map based on Amplified Fragment Length Polymorphic DNA (AFLP) in Scots pine (Pinus sylvestris L.). The main purpose of map construction was its application to quantitative traits loci ...
    • Effects of location of Norway spruce (Picea abies) stumps on their colonisation by insects in the mountains 

      Skrzecz, Iwona; Bulka, Maria; Ukalska, Joanna (The Committee on Forestry Sciences and Wood Technology of the Polish Academy of Sciences and the Forest Research Institute in Sekocin Stary, 2019-03-15)
      Tree stumps provide habitat for insect assemblages, which are influenced by various factors. Among these factors, physical and chemical changes of the stumps, fungi developing in the dead wood and stump size are most often ...
    • The main costs of natural disasters in the Forest District of Węgierska Górka 

      Sikora, Adam Tomasz; Ukalska, Joanna (Instytut Badawczy Leśnictwa, 2014-09)
      The aim of the study was to determine the impact of increased forest management due to natural disasters on particular core unit costs. We analysed the direct costs for the Forest District of Węgierska Górka in the years ...
    • Micropropagation and in vitro rooting of Robinia pseudoacacia L. recalcitrant genotypes 

      Szyp-Borowska, Iwona; Ukalska, Joanna; Wojda, Tomasz; Sułkowska, Małgorzata; Klisz, Marcin (The Committee on Forestry Sciences and Wood Technology of the Polish Academy of Sciences and the Forest Research Institute in Sekocin Stary, 2020-11-04)
      In forest production, there is an emerging tendency towards the planting of fast-growing trees as attractive, renewable energy sources. Hence, efforts were made to develop a method of micropropagation by organogenesis of ...
    • Sigmoid growth curves, a new approach to study the dynamics of the epicotyl emergence of oak 

      Ukalska, Joanna; Jastrzębowski, Szymon (The Committee on Forestry Sciences and Wood Technology of the Polish Academy of Sciences and the Forest Research Institute in Sekocin Stary, 2019-03-15)
      Three of the most frequently used sigmoidal growth curves from the Richards family are the logistic model, Gompertz model and Richards model. They are used in the analysis of organismal growth over time in many disciplines/studies ...
    • The vulnerability of silver fir populations to damage from late frosts 

      Klisz, Marcin; Jastrzębowski, Szymon; Ukalska, Joanna; Przybylski, Paweł; Matras, Jan; Mionskowski, Marcin (Instytut Badawczy Leśnictwa (Forest Research Institute), Sekocin Stary, Poland, 2016-03-15)
      The aim of the study was to determine the vulnerability of selected silver fir populations to damage from late frost in the climatic conditions of south-eastern Poland. To determine the vulnerability of apical and lateral ...
    • Timber prices after natural disasters in the Forest District of Węgierska Górka 

      Sikora, Adam Tomasz; Ukalska, Joanna (Instytut Badawczy Leśnictwa, 2014-06)
      The aim of the study was to determine the impact of increased timber logging after natural disasters on timber assortments, unit prices, as well as average prices of timber spruce and total timber. The net sales prices of ...