WYSTĘPOWANIE OSUTKI WIOSENNEJ SOSNY W WYBRANYCH NADLEŚNICTWACH RDLP W SZCZECINIE W LATACH 2008-2016

2019 ◽  
Vol XII ◽  
pp. 1-1
Author(s):  
Maciej Hałuszczak
Keyword(s):  
Scots Pine ◽  
Potential Threat ◽  
Forest District ◽  
Important Disease ◽  
Spring Rape ◽  
Multifaceted Analysis

The aim of this work was to show the scale of occurrence of the Scots pine assimilation apparatus disease, spring rape, in the area of RDLP in Szczecin and submission of the collected results for the years 2008-2016 to a multifaceted analysis. The spring peat of pine is an important disease of crops and young trees in the Międzychód Forest District. The potential threat is registered in the Bogdaniec, Gryfice and Międzyrzecz Forest Districts. The Forest Districts of Choszczno, Głusko, Karwin, Myślibórz and Różańsko did not find any damages to the rash of spring pine in the period indicated. Analyzing the data provided, it is possible to describe the characteristics of the damaged areas within the RDSF Forest Districts in Szczecin: Scots pine aged 4.61 years on an area of 1.58 ha in 1.71 damage.

scholarly journals Are we narrowing genetic variability in seed orchards? An attempt to answer, based on the analysis of microsatellite DNA of grafts growing in Scots pine (Pinus sylvestris L.) seed orchard in the Forest District Susz

2015 ◽  
Vol 76 (3) ◽  
pp. 240-249
Author(s):  
Paweł Przybylski
Keyword(s):  
Genetic Variability ◽  
Pinus Sylvestris ◽  
Scots Pine ◽  
Microsatellite Dna ◽  
Molecular Genetic ◽  
Seed Orchard ◽  
Dna Fragments ◽  
Forest Stands ◽  
Seed Orchards ◽  
Forest District

Abstract Scots pine (Pinus sylvestris L.) is the most common species in Poland’s forest stands. The mode of pine stands renovation requires that silviculture practitioners have continuous access to seed banks. Orchard-grown seeds are predicted to constitute an increasingly larger part of the average demand for pine seeds in Poland. Seed orchards, due to a limited number of maternal trees as well as the irregularity of their blooming and pollination, enhance the risk of genetic diversity reduction in planted forest stands. This is of particular importance in the context of dynamic climate change. Markers based on microsatellite DNA fragments are effective tools for monitoring genetic variability. In the present study, three different microsatellite DNA fragments were used: SPAC 12.5, SPAG 7.14 and SPAC 11.4. The main objective of this research was to study genetic variability in one of the biggest seed orchards in Poland, located in the Forest District Susz. The obtained results indicated heterozygosity loss within the orchard, proving the existence of specimen selection effects on genetic variability. Hence, it seems quite important to take account of molecular genetic variability of maternal trees in future breeding strategies.

scholarly journals EVALUATION OF VARIOUS LINES OF WHEAT AND EPIDEMIOLOGY AGAINST LOOSE SMUT (USTILAGO TRITICI)

2017 ◽  
Vol 29 (2) ◽  
pp. 219
Author(s):  
Ateeq ur Rehman ◽  
Syed A.H Naqvi ◽  
Ummad U.D. Umar ◽  
Rasheed Ahmad
Keyword(s):  
Genetic Resources ◽  
Environmental Variables ◽  
Loose Smut ◽  
Potential Threat ◽  
Breeding Programs ◽  
Ustilago Tritici ◽  
Cereal Production ◽  
Deadly Disease ◽  
Important Disease ◽  
Susceptible Response

Fungal diseases pose a potential threat to successful cereal production in wheat particularly in Pakistan. Loose smut caused by Ustilago tritici is an important disease of wheat. During the current research various lines of wheat were screened against the deadly disease, results showed no line was resistant against the disease in the wheat genetic resources, mostly varieties showed susceptible to highly susceptible response. All the environmental variables were found conducive for the development of the disease. The disease is a serious concern for wheat production and potential breeding programs are the need of time to cater the losses due to this disease. 

scholarly journals Monument trees in the Kampinos national Park (central Poland): A review

2020 ◽  
Vol 62 (3) ◽  
pp. 210-219
Author(s):  
Andrzej Szczepkowski ◽  
Łukasz Tyburski ◽  
Małgorzata Sułkowska
Keyword(s):  
Scots Pine ◽  
National Park ◽  
The Other ◽  
Special Values ◽  
Central Poland ◽  
Current State ◽  
History Of ◽  
Preliminary Description ◽  
Forest District ◽  
European Ash

AbstractThe paper presents the history of the protection of trees with special values, the current state of monument trees and the preliminary description of trees meeting the minimal circumference criteria to be regarded as natural monuments in the Kampinos National Park (KNP). The study was conducted in the years 2017–2019. In the KNP, there are 69 living trees with a status of natural monuments. Most of them are oaks – 56 specimens, Scots pine – 6 specimens, small-leaved lime – 5 specimens and European hornbeam and European ash – 1 specimen each. Among all, 27 trees grow individually and the other 42 grow in 7 groups. About 200 trees were recognised as meeting the minimal circumference criteria to be regarded as natural monuments. The thickest size tree in the KNP is the black poplar with a circumference of 805 cm, growing in the enclave of Ruska Kępa, and the thickest monument tree in the KNP area is Dąb Kobędzy (Kobendza Oak) with a circumference of 582 cm. Almost a half of the living monument trees (34 specimens) are situated in Kampinos Forest District. In Kromnów, there are 20, and in Laski Forest District 15 specimens of monument trees are mapped. Living monument trees were found in 15 (out of 17) forest subdistricts. The highest number of monument trees was found in Rózin Forest Subdistrict (16) and in Wilków Forest Subdistrict (10). The lowest number – one specimen per forest subdistrict – was found in six forest subdistricts (Dąbrówka, Grabina, Janówek, Krzywa Góra, Rybitew and Zamczysko). In total, there are around 300 specimens of natural monuments and trees meeting the minimal circumference criteria to be regarded as natural monuments, which means that there is one tree of this category for each 125 ha surface of the KNP.

METODY PROWADZENIA ODNOWIEŃ NATURALNYCH SOSNY ZWYCZAJNEJ (PINUS SYLVESTRIS L.) W NADLEŚNICTWIE SKWIERZYNA

2020 ◽  
Vol XIII ◽  
pp. 1-1
Author(s):  
Maciej Hałuszczak
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Natural Regeneration ◽  
Coniferous Forest ◽  
Basic Method ◽  
Forest Stands ◽  
Clear Cutting ◽  
Forest District

For many years, the Skwierzyna Forest District has been a leader among 35 units of the Regional Directorate of State Forests in Szczecin in terms of the area of the obtained natural regeneration of Scots pine. In the Skwierzyna Forest District in the period 2010-2018, 522.93 ha of natural regeneration was recognized, which constitutes 43% of the total regeneration, the habitat of fresh mixed coniferous forest and fresh coniferous forest as optimal for obtaining regeneration of the natural pine. In the spring date of plowing, the forest plow LPz-75 is applied, as the best for obtaining satisfactory self-seeding. The basic method of natural regeneration of pine in the Skwierzyna Forest Inspectorate is the use of a strip-like clear cutting (Ib) in the form of classic narrow sheds, with a cutting width of up to 60 m. It is noteworthy that in the woodcutting the under-eaves undergrowths, arising in forest stands close to the harvest, are left intact and later used within the naturally renovated area.

scholarly journals Genetic variability of Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies L. Karst.) natural regeneration compared with their maternal stands

2014 ◽  
Vol 75 (1) ◽  
pp. 47-54 ◽  
Author(s):  
Justyna Anna Nowakowska ◽  
Tadeusz Zachara ◽  
Agata Konecka
Keyword(s):  
Genetic Variability ◽  
Picea Abies ◽  
Pinus Sylvestris ◽  
Norway Spruce ◽  
Scots Pine ◽  
Natural Regeneration ◽  
Gene Pool ◽  
Inbreeding Coefficient ◽  
Adult Trees ◽  
Forest District

Abstract The genetic variability and biodiversity of tree populations ensure the stability and sustainability of forest ecosystems. New research tools based on molecular DNA markers enable precise characterisation of forest genetic resources, i.e. detection of different allele frequencies in mature trees and progeny populations. The paper describes the genetic structure of mature stands of Scots pine (Pinus sylvestris L.) in Oława Forest District and Norway spruce (Picea abies L. Karst.) in Jawor Forest District and stands of their respective progeny. In the Scots pine stand, there was a slight increase (0.6%) in heterozygosity level and a larger increase (4.9%) in the inbreeding coefficient of progeny trees. In the Norway spruce stand, despite a small reduction (0.9%) in heterozygosity, a similar increase (4.6%) in the inbreeding coefficient of progeny was revealed. In both stands, allele richness and the partition probability of basic clustering were high. Both pine and spruce adults and progeny trees were characterised by high levels of genetic similarity (96% and 79%, respectively). Gene flow between the mature and progeny populations was high (Nm > 1) for both Scots pine and Norway spruce. Conservation of the gene pool within forest tree stands requires an increase in the proportion of natural regeneration. To estimate the extent to which genes are transmitted between adult trees and their progeny, more studies are needed, especially taking into account the influence of silviculture measures, like selective tree cutting, on the genetic variability of the younger generation. These results confirm that the gene pool was conserved when transmitted between the stands studied, as well as highlight the usefulness of such a study for silvicultural purposes

scholarly journals How the Virtual Thinning Can Help to Control the Changing of Genetic Structure in Scots Pine Stands?

2020 ◽  
Vol 3 (1) ◽  
pp. 31
Author(s):  
Agata Konecka ◽  
Anna Tereba ◽  
Marcin Studnicki ◽  
Włodzimierz Buraczyk ◽  
Henryk Szeligowski ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Scots Pine ◽  
Gene Pool ◽  
Stand Structure ◽  
Real Life ◽  
Selection Cutting ◽  
Ssr Loci ◽  
Nuclear Ssr ◽  
Chloroplast Ssr ◽  
Forest District

The work detailed here in the context of the above project sought to determine changes in the gene pool (at the DNA level) in a stand of Scots pine (Pinus sylvestris L.), under the influence of various kinds of forest-tending cuts. The experimental area on which the research was focused is located in Poland’s Ostrów Mazowiecka Forest District. Genetic structure was specified using five nuclear SSR sequences and six chloroplast SSR loci, while the five thinning variants trialled were sanitation cutting, low thinning of 30% intensity, schematic thinning, selective thinning and destructive lumbering. The control variant was left untreated. It was virtual rather than real-life thinning that was pursued, using the ForestSimulator BWINPro program. Changes in the structure of the stand after a further 10 years were also simulated. The different thinning variants were shown to cause change in the gene pool and level of genetic diversity of trees in the study area. In terms of maintaining genetic variability in the stand, the least-favourable method proved to be thinning from below. Destructive selection cutting was in turn most beneficial in terms of the preservation of genetic structure, with the reduction in rare alleles being more limited than in any other analysed variant. It was with the selective thinning variant that the final number of trees, stand structure and level of genetic variation resembled the situation in the control most closely. This suggests that selective thinning provides for a rather accurate replication of processes occurring in nature.

scholarly journals Establishment condition of Scots pine natural regeneration in Tuszyma Forest District

2010 ◽  
Vol 71 (3) ◽  
pp. 217-224
Author(s):  
Dorota Dobrowolska
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Natural Regeneration ◽  
Forest District

Warunki powstawania odnowień naturalnych sosny zwyczajnej (Pinus sylvestris L.) na terenie Nadleśnictwa Tuszyma

scholarly journals From the investigations on Armillaria root rot occurrence in young Scots pine stands in Zielonka Forest District

2013 ◽  
Vol 55 (1) ◽  
pp. 319-324 ◽  
Author(s):  
Wojciech Szewczyk ◽  
Małgorzata Mańka
Keyword(s):  
Environmental Factors ◽  
Scots Pine ◽  
Root Rot ◽  
Frequent Occurrence ◽  
Armillaria Ostoyae ◽  
Armillaria Root Rot ◽  
Pine Stands ◽  
Forest District ◽  
Scots Pine Stands

Armillaria root rot, one of the most dangerous diseases in our forests, is caused in Poland mainly by <i>Armillaria ostoyae</i>, especially severe in young Scots pine stands, established after broadleaved stands or with participation of broadleaved species. In Forest District Zielonka young stands are severly affected by Armillaria root rot. Only one species, A.ostoyae, was found in the young (8-14 yrs) Scots pine stands, despite the presence of other <i>Armillaria</i> species in the district. The pathogen's frequent occurrence may be due, <i>inter alia</i>, to favouring environmental factors.

scholarly journals About the heritability influence to the growth performance in Scots pine (Pinus sylvestris L.) progeny trials

2008 ◽  
Vol 48 (1) ◽  
pp. 79-87 ◽  
Author(s):  
Malle Kurm ◽  
Ursula Kaur ◽  
Tiit Maaten ◽  
Andres Kiviste
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Variance Components ◽  
Residual Variance ◽  
Stem Height ◽  
Data Set ◽  
Mother Tree ◽  
Plus Tree ◽  
Reml Estimation ◽  
Forest District

Pärilikkuse mõjust hariliku männi (Pinus sylvestrisL.) kasvuomadustele järglaskatsetesThe progeny trials of the Scots pine founded in Järvselja Training and Experimental Forest District in 1966 and 1967 by E. Pihelgas were analysed to estimate the heritability of height and diameter characteristics, and also the dependence of progeny properties on the plus tree and single tree phenotype. The data set consists of 513 height and 3707 breast height diameter measurements of 39-and 40-years-old progenies of 40 mother trees. The analysis was carried out with the SAS package, Release 9.1, mainly with ANOVA tools implemented SAS/MIXED procedure. Heritability h2was calculated from the mother tree and residual variance components assuming a limited number of father trees for each progeny. Using the REML estimation procedures, the heritability of the stem height was found approximately equal to 1 and it was 0.19 for the DBH. Considering the mother tree characteristics, the age was significantly correlated with the progeny height.

Sign in / Sign up

Export Citation Format

Share Document