Current issue: 53(2)

Under compilation: 53(3)

Impact factor 1.683
5-year impact factor 1.950
Silva Fennica 1926-1997
1990-1997
1980-1989
1970-1979
1960-1969
Acta Forestalia Fennica
1953-1968
1933-1952
1913-1932

Articles containing the keyword 'hiilidioksidi'.

Category: Article

article id 7321, category Article
I. K. Sajaniemi. (1936). Ilman hiilihapon määrääminen. Acta Forestalia Fennica vol. 42 no. 4 article id 7321. https://doi.org/10.14214/aff.7321
English title: Measuring carbon dioxide in the air.
Original keywords: hiilidioksidi

Plants assimilate carbon dioxide from the air. Respiration of plants also produce carbon dioxide. Because the carbon dioxide level of the air is only 0.3%, only little carbon dioxide can diffuse in plants. Thus, the carbon dioxide assimilated by the plants is formed mostly in the earth when organic substances are degraded. The article describes a method to measure carbon dioxide level in the air.

  • Sajaniemi, ORCID ID:E-mail:
article id 4863, category Article
Olavi Luukkanen. (1972). Metsäpuiden fotosynteesin geneettinen vaihtelu. Silva Fennica vol. 6 no. 2 article id 4863. https://doi.org/10.14214/sf.a14666
English title: Genetic variation of photosynthesis in forest trees.

In the literature review the current status of information on the genetic variation of CO2 exchange and some reviews and investigations on this subject are listed. Photorespiration is separately discussed and unpublished data of an electron microscope study of poplar leaf microbodies are presented.

Considerable genetic inter- and intraspecific variation is found in several characteristics that affect CO2 exchange in trees. Photosynthesis in young trees does not correlate well with growth through the whole rotation cycle. A special interest has been shown to marginal environmental conditions (e.g. water deficit, low temperature, and low light intensity), as opposed to optimal conditions often employed in laboratory studies of CO2 exchange in trees.

In an unpublished poplar studies by the author et.al. a preliminary experiment with poplar clones showed variation in the CO2 competition point. This variation was negatively correlated with the photosynthesis efficiency of these clones.

The PDF includes a summary in English.

  • Luukkanen, ORCID ID:E-mail:

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