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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.

Pertti Hari (email), Tapio Lehtiniemi

Lämpötilan ja itämisalustan kosteuden vaikutus kuusen (Picea abies (L.) Karst.) siementen idäntään ja CO2-eritykseen laboratoriossa.

Hari P., Lehtiniemi T. (1972). Lämpötilan ja itämisalustan kosteuden vaikutus kuusen (Picea abies (L.) Karst.) siementen idäntään ja CO2-eritykseen laboratoriossa. Silva Fennica vol. 6 no. 2 article id 4866. https://doi.org/10.14214/sf.a14669

English title: The effect of temperature and moisture on germination and CO2-output of spruce (Picea abies) seeds in a controlled environment

Abstract

The study was an attempt to assess, from a theoretical viewpoint and with the techniques of measurement in mind, the usability respiration and cumulative respiration in the observation of the progress of seed germination in Norway spruce (Picea abies (L.) H. Karst.), as well as the influence of air temperature substrate moisture and the stage of physiological development of seeds on respiration. Furthermore, the reserve nutrient consumption and the possible uptake of mineral nutrients were kept under observation during the 9–11 days after seeding.

The results showed that the stage of physiological development of the seeds can be rather well described by the means of cumulative CO2 release. There was a strong interaction in the CO2 release between the moisture of the substrate and the air temperature. It seems to be to great extent due to differences in the rate of development in the early phases of germination. The CO2 release from seeds showed a close correlation with percentage germinated seeds.

The PDF includes a summary in English.

Original keywords
kuusi; lämpötila; itäminen; aineenvaihdunta; CO2-aineenvaihdunta; CO2-eritys; kosteus

English keywords
Norway spruce; Picea abies; germination; CO2 release; air temperature

Published in 1972

Views 3506

Available at https://doi.org/10.14214/sf.a14669 | Download PDF

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