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

Veikko Koski (email)

On the variation of flowering and seed crop in mature stands of Pinus sylvestris L.

Koski V. (1980). On the variation of flowering and seed crop in mature stands of Pinus sylvestris L. Silva Fennica vol. 14 no. 1 article id 5067. https://doi.org/10.14214/sf.a15008

Abstract

The paper discusses the variation of flowering and seed crop of Scots pine (Pinus sylvestris L.) stands based on literature published in Finland. According to the studies, the list of good seed years given by different authors do not completely match, and no essentially new about the periodicity of the seed crop or the causes of variation has been found. The difficulty in classification of the seed crops in different years in different stands and locations can be handled through the concept of capacity. It is suggested in the paper that to be able to compare the occurrence of good flowering and seed years of different stands and localities, a case exceeding 50% of the capacity is described as abundant, and a case exceeding 75% as very heavy.

The PDF includes a summary in Finnish.

Keywords
Pinus sylvestris; Scots pine; flowering; capacity; periodicity; seed crop

Published in 1980

Views 1333

Available at https://doi.org/10.14214/sf.a15008 | Download PDF

Creative Commons License CC BY-SA 4.0

Register
Click this link to register to Silva Fennica.
Log in
If you are a registered user, log in to save your selected articles for later access.
Contents alert
Sign up to receive alerts of new content

Your selected articles
Your search results