Effect of foliar application of dilute sulphuric acid on Scots pine seedlings
Needle damages, transpiration, photosynthesis and needle and stem height growth of Scots pine ( 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 precip...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Finnish Society of Forest Science
1981-01-01
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| Series: | Silva Fennica |
| Online Access: | https://www.silvafennica.fi/article/5123 |
| Summary: | Needle damages, transpiration, photosynthesis and needle and stem height growth of Scots pine ( 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 10â30% 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.Pinus sylvestris |
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| ISSN: | 2242-4075 |