Effect of heat on seed germination of Pinus sylvestris and Pinus nigra ssp. pallasiana

2006 ◽  
Vol 15 (2) ◽  
pp. 283 ◽  
Author(s):  
Ibrahim Turna ◽  
Ertugrul Bilgili
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Present Note ◽  
Sharp Decrease ◽  
Pinus Nigra ◽  
Black Pine ◽  
Crown Cover ◽  
And Control ◽  
Positive Effect ◽  
Anatolian Black Pine

The present note presents and explains the results of a study dealing with the germination of seeds subjected to heat. Seeds of Scots pine (Pinus sylvestris L.) and Anatolian black pine (Pinus nigra ssp. pallasiana) were exposed to a range of temperatures (70, 90, 110, 130, and 150°C) for different exposure times (1 and 5 min). Germination rates were similar for all treatments and control at 1 min exposure for Anatolian black pine seeds, and almost no germination took place for all treatments at 5 min exposure. Similar results were obtained for Scots pine seeds, with the exception of a sharp decrease in the number of seeds germinated above 110°C. The effect of increasing the exposure time to 5 min was immediate, and no germination took place above 90°C. Results obtained indicate that seeds of the two species do not necessarily need fire for successful regeneration, but fires may have a positive effect on the germination by removing crown cover, thereby providing more light for the seeds deposited to the ground.

scholarly journals Growth and Survival Variation among Scots Pine (Pinus sylvestrisL.) Provenances

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Süleyman Gülcü ◽  
Nebi Bilir
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Native Species ◽  
Tree Height ◽  
Pinus Nigra ◽  
Black Pine ◽  
Basal Diameter ◽  
Growth And Survival ◽  
Seed Sources ◽  
Provenance Test

Tree height, basal diameter, and survival were examined in thirteen-year-old provenance test established by 30 seed sources of Scots pine (Pinus sylvestrisL.) at two exotic sites of the species in Southern part of Turkey. Variations within provenance and among provenances and relations among the traits were estimated to compare Scots pine provenance and two other native species. Averages of tree height and basal diameter were 350 cm and 52.7 mm in Aydogmus site and 385 cm and 51.2 mm in Kemer site, respectively. There were large differences within and among provenances for the characters. Sites were similar (p>0.05) for the characters, while there were significant differences (p≤0.05) among provenances within site according to results of variance analysis (ANOVA). Scots pine provenances were higher and had more thickness than that of black pine (Pinus nigraArnold) and Taurus cedar (Cedrus libaniA. Rich.) which were natural species of the region. There were positive and significant (p<0.05) correlations between height and basal diameter in the species. Average survivals were 56% and 35% of the provenances in the sites. They were 71% and 11% in black pine and 53% in Taurus cedar for the sites respectively.

scholarly journals Stimulating the growth of trees with ashes of various biofuels (wood, peat) on a cutaway peatland

2010 ◽  
Vol 52 (1) ◽  
pp. 60-71 ◽  
Author(s):  
Karin Kikamägi ◽  
Katri Ots
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Betula Pendula ◽  
Growing Season ◽  
Wood Ash ◽  
Height Increment ◽  
And Control ◽  
Positive Effect ◽  
Root Collar ◽  
Scots Pine Needles

Puittaimede kasvu stimuleerimine erinevate biokütuste (puit, turvas) tuha liikidega ammendatud freesturbaväljalThe aim of the study was to investigate the effect of fertilization on the growth of Silver birchBetula pendulaRoth and Scots pinePinus sylvestrisL. seedlings on a cutaway peatland (Ulila, 58°22'N, 26°26'E). Five treatments were established: wood ash (10 000 and 5000 kg/ha), peat and wood ash mixture (10 000 and 5000 kg/ha) and control (unfertilized field). Results of analysis showed that the pH of peat in the cutaway peatland was before treatment 3.5 and it rose after fertilization by up to 0.7 units by the end of the first growing season. The treatment with 10 000 kg/ha of wood ash gave the best results: the annual height increment of Silver birches during the first growing season after fertilization was 4.5 times higher and that of Scots pines 1.1 times higher than control. In the second growing season after fertilization the increment was respectively 16.3 and 3.3 times higher than control. The root collar diameters of Silver birches were 4.4 time larger these of Scots pines 2.1 times larger than control. Scots pine needles were 2.2 times longer than control and the leaf area of the Silver birches was 6 times larger than control, which also shows a positive effect of fertilization. Peat ash treatment was also favourable, although its effect was much smaller than the effect of wood ash.

scholarly journals Environmental pollution changes in membrane lipids, antioxidants and vitality of Scots pine (Pinus sylvestris L.) pollen

2011 ◽  
Vol 72 (2) ◽  
pp. 99-104 ◽  
Author(s):  
Paweł M. Pukacki ◽  
Władysław Chałupka
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Membrane Lipids ◽  
Pollen Grains ◽  
Pollution Source ◽  
Polluted Area ◽  
Cytoplasmic Membranes ◽  
And Control ◽  
Germination Of Pollen ◽  
Low Molecular Antioxidants

Investigations were carried out on pollen grains of Scots pine (<em>Pinus sylvestris </em>L.) collected from trees at 1.5, 3, 4 km and control, 20 km from the Luboń factory producing mineral fertilisers. The percentage of germination of pollen formed close to the pollution source was ca 20% lower compared to the control pollen. Lowered vitality of the pollen was effected in changes of the structure of cytoplasmic membranes. Pollen from the polluted area contained ca 15% less total phospholipids, mainly phosphatidylcholine and phosphatytidylinositol and had a lower content of soluble proteins and less of low molecular antioxidants, such as thiols and ascorbic acid. Composition of total fatty acid in phospholipids fractions showed a significant reduction in the degree of unsaturation of fatty acids. Pollen originating from the polluted area and stored at -30°C showed considerably stronger degradation of cytoplasmic membranes than control.

scholarly journals Application of various statistical methods to analyze genetic diversity of Austrian (Pinus nigra Arn.) and Scots pine (Pinus sylvestris L.) based on protein markers

Genetika ◽  
2011 ◽  
Vol 43 (3) ◽  
pp. 477-486 ◽  
Author(s):  
Aleksandar Lucic ◽  
Vasilije Isajev ◽  
Ljubinko Rakonjac ◽  
Milan Mataruga ◽  
Vojka Babic ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Pinus Sylvestris ◽  
Statistical Methods ◽  
Scots Pine ◽  
Correspondence Analysis ◽  
Pinus Nigra ◽  
Genetic Distances ◽  
Protein Markers ◽  
Observation Units ◽  
Precise Understanding

This paper presents the results of studies on protein polymorphism in seeds of Scots pine (Pinus sylvestris L.) and Austrian pine (Pinus nigra Arn.) as the most important economic species of the genus Pinus in Serbia. Polymorphism of protein markers was determined in selected genotypes originating from seven populations (Scots pine) and six populations (Austrian pine). Analysis of protein markers was performed using two statistical methods, NTSYS and correspondence analysis. Both methods give the same arrangement of the analyzed populations, whereby, because of a different view of genetic distances, they can and should be combined, enabling easier and more precise understanding of mutual relationships of the observation units.

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