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Heljä-Sisko Katainen, Seppo Kellomäki

Happaman veden vaikutus männyn taimiin.

Katainen H.-S., Kellomäki S. (1981). Happaman veden vaikutus männyn taimiin. Silva Fennica vol. 15 no. 3 article id 5123. https://doi.org/10.14214/sf.a15064

English title: Effect of foliar application of dilute sulphuric acid on Scots pine seedlings.

Abstract

Needle damages, transpiration, photosynthesis and needle and stem height growth of Scots pine (Pinus sylvestris L.) seedlings treated with dilute sulphuric acid were studied. The acidity of the solution was pH 3. Application of a dilute solution of sulphuric acid equivalent to the normal amount of precipitation occurring during the growing season damaged the surface of two-year-old needles but not that of the current-year needles. A reduction in the photosynthetic rate of 10–30% was observed compared with the untreated seedlings. Transpiration of the seedlings was not affected by the treatment. Needle growth and stem height growth of the seedlings growing on a substrate representing poor sandy soil were reduced. Increased needle growth and stem height growth were characteristic for the seedlings growing on substrate representing fertile moraine.

The PDF includes a summary in English.

Original keywords
mänty; happamuus; taimet; neulasvauriot; fotosynteesi; hapan sade; pituuskasvu

English keywords
Scots pine; Pinus sylvestris; acid rain; acidity; needle damages; photosynthesis; height growth; seedlings

Published in 1981

Available at https://doi.org/10.14214/sf.a15064 | Download PDF

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