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Metsätieteen aikakauskirja Dissertationes Forestales Suo - Mires and Peat
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Full text of this article is only available in PDF format.

Paavo Pelkonen (email), Heikki Smolander

Männyn kaasunvaihdon elpyminen talvilevon keskeytyessä.

Pelkonen P., Smolander H. (1976). Männyn kaasunvaihdon elpyminen talvilevon keskeytyessä. Silva Fennica vol. 10 no. 2 article id 4940. https://doi.org/10.14214/sf.a14786

English title: Increase in gas exchange rate in Scots pine by terminating the winter rest period

Abstract

The activation of CO2 exchange was monitored in two Scots pine (Pinus sylvestris L.) seedlings transferred from the field to the laboratory in December. Gas exchange was monitored by an URAS I infrared gas analyser in a so-called open IRGA-system with trap type chambers. Transpiration was also measured at the same time by weighing the potted seedlings twice a day. The measuring period lasted eleven days. During the period, the level of both transpiration and net photosynthesis increased about ten times. Furthermore, it was found that the level of photosynthesis at high temperatures was relatively lower at the beginning than at the end of the measuring period.

The PDF includes a summary in English.

Original keywords
mänty; fotosynteesi; aineenvaihdunta; haihdunta; talvilepo

English keywords
Pinus sylvestris; Scots pine; net photosynthesis; winter dormancy; transpiration

Published in 1976

Views 7621

Available at https://doi.org/10.14214/sf.a14786 | Download PDF

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