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Olavi Luukkanen

Havaintoja kuusen vapaapölytysjälkeläistöjen ja männyn metsikköalkuperien CO2-aineenvaihdunnasta.

Luukkanen O. (1973). Havaintoja kuusen vapaapölytysjälkeläistöjen ja männyn metsikköalkuperien CO2-aineenvaihdunnasta. Silva Fennica vol. 7 no. 4 article id 4888. https://doi.org/10.14214/sf.a14726

English title: Observations on CO2 exchange in open pollinated progenies of Norway spruce and provenances of Scots pine.

Abstract

Photosynthesis and dark respiration in five families of autochtonous Norway spruce (Picea abies (L.) H. Karst.) and in seedlings from twenty Finnish stands of Scots pine (Pinus sylvestris L.) were investigated in constant environmental conditions. Values of CO2 exchange were compared with the height growth and weight of seedlings in Norway spruce and with the weight alone in Scots pine. No statistically significant differences were found in CO2 exchange among progenies or stands. Photosynthetic efficiency and photosynthetic capacity showed a positive correlation both in spruce and in pine. Growth and net photosynthetic capacity were linearly and positively correlated in pine. Spruce and a higher light compensation point than pine. The use of an open IRGA system with several simultaneous measurements and the trap-type cuvette construction in genetic work are discussed.

The PDF includes a summary in English.

Original keywords
geneettinen muuntelu; kuusi; mänty; fotosynteesi; metsänjalostus; pluspuu; pimeähengitys; yhteyttämisteho

English keywords
Norway spruce; Picea abies; Scots pine; Pinus sylvestris; tree breeding; photosynthesis capacity; genetic variance; dark respiration

Published in 1973

Available at https://doi.org/10.14214/sf.a14726 | Download PDF

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