Amount and size of rays in Scots pine stems

Kärkkäinen, Matti

Full text of this article is only available in PDF format.

Silva Fennica vol. 7 no. 2 article id 4879 | 1973 | Article

Matti Kärkkäinen

Mäntyrunkojen ydinsäteiden määrä ja koko.

Kärkkäinen M. (1973). Mäntyrunkojen ydinsäteiden määrä ja koko. Silva Fennica vol. 7 no. 2 article id 4879. https://doi.org/10.14214/sf.a14713

English title: Amount and size of rays in Scots pine stems

Abstract

The material consists of four Scots pine (Pinus sylvestris L.) stems from which 757 samples were taken from various heights and distances from the pith. According to the results, the number of rays and their sizes are greater at the stump level than higher up in the stem. The size increases, and the number decreases on moving from the pith outwards. However, there are differences between stems as regards the variation model. The ratio between the number of fusiform rays and that of uniseriate rays seems to be lower than anticipated earlier, about 1:40–1:50. The average proportion of ray volume varied from 5.6% to 7.3%.

The PDF includes a summary in English.

Original keywords
mänty; runko; puuaines; ydinsäteet; pihkatiehyet; pihka

English keywords
Pinus sylvestris; Scots pine; structure of wood; fusiform rays; uniseriate rays; resin canal; pitch

Published in 1973

Available at https://doi.org/10.14214/sf.a14713 | Download PDF

Click this link to register to Silva Fennica.

If you are a registered user, log in to save your selected articles for later access.

Contents alert

Export reference to EndNote / RefWorks

Your selected articles
Send to email

Makkonen O., (1967) Attempts to unify the classification of forest t.. Silva Fennica vol. 1 no. 2 article id 4743 (remove) | Edit comment

Heikkilä R., Härkönen S. (1993) Moose (Alces alces L.) browsing in young Scots p.. Silva Fennica vol. 27 no. 2 article id 5506 (remove) | Edit comment

Starr M., Westman C. J. (1978) Easily extractable nutrients in the surface peat.. Silva Fennica vol. 12 no. 2 article id 4990 (remove) | Edit comment

Kurimo H., (1983) Surface fluctuation in three virgin pine mires i.. Silva Fennica vol. 17 no. 1 article id 5173 (remove) | Edit comment

Palmberg C., (1970) Estimation of heritability in open-pollinated pl.. Silva Fennica vol. 4 no. 3 article id 4823 (remove) | Edit comment

Varmola M., (1989) A model for ring width of planted Scots pine Silva Fennica vol. 23 no. 4 article id 5388 (remove) | Edit comment

Långström B., Hellqvist C. et al. (2004) Comparison of methods for estimation of needle l.. Silva Fennica vol. 38 no. 1 article id 432 (remove) | Edit comment

Hertz M., (1929) Observations on annual and daily cycles in the h.. Acta Forestalia Fennica vol. 34 no. 18 article id 7231 (remove) | Edit comment

Kärkkäinen M., (1973) Amount and size of rays in Scots pine stems Silva Fennica vol. 7 no. 2 article id 4879 (remove) | Edit comment

Your search results