The effect of the age of Scots pine (Pinus sylvestris L.) stands on the physical properties of seeds and the operating parameters of cleaning machines

• Autorzy: Kaliniewicz Z. , Rawa T. , Tylek P. , Markowski P. , Anders A. , Fura S.
• Języki publikacji: EN

Abstrakty

EN

Critical transport velocity, the thickness, width, length, the angle of sliding friction and weight of Scots pine seeds harvested from conservation seed stands were measured. Correlations were determined between the age of parent stands (124 to 180 years old) and the above parameters of Scots pine seeds. Significant correlations were found between the age of parents stands and the weight, dimensions and the angle of sliding friction of seeds. Such a correlation was not observed for critical transport velocity. The noted correlations were presented as first-order equations which show that among the studied seed properties, average seed weight changed to the highest degree – it decreased by ca. 15% as Scots pine trees grew older.

Słowa kluczowe

EN

Scots pine; seeds; physical properties; correlations

• Wydawca: Wydawnictwo Uniwersytetu Warmińsko-Mazurskiego w Olsztynie
• Czasopismo: Technical Sciences / University of Warmia and Mazury in Olsztyn
• Rocznik: 2013
• Tom: nr 16(1)
• Strony: 63--72
• Opis fizyczny: Bibliogr. 27 poz., tab., wykr.

Twórcy

autor

Kaliniewicz Z.

• Department of Heavy Duty Machines and Research Methodology, University of Warmia and Mazury

autor

Rawa T.

• Department of Heavy Duty Machines and Research Methodology, University of Warmia and Mazury

autor

Tylek P.

• Department of Mechanisation of Forest Works, University of Agriculture in Krakow

autor

Markowski P.

• Department of Heavy Duty Machines and Research Methodology, University of Warmia and Mazury

autor

Anders A.

• Department of Heavy Duty Machines and Research Methodology, University of Warmia and Mazury

autor

Fura S.

• Zdzisław Boroński Seed Extraction Plant in Ruciane Nida Maskulińskie Forest Inspectorate

Bibliografia

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