Increase in gas exchange rate in Scots pine by terminating the winter rest period
The activation of CO exchange was monitored in two Scots pine ( L.) seedlings transferred from the field to the laboratory in December. Gas exchange was monitored by an URAS I infrared gas analyser in a so-called open IRGA-system with trap type chambers. Transpiration was also measured at...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Finnish Society of Forest Science
1976-01-01
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| Series: | Silva Fennica |
| Online Access: | https://www.silvafennica.fi/article/4940 |
| Summary: | The activation of CO exchange was monitored in two Scots pine ( L.) seedlings transferred from the field to the laboratory in December. Gas exchange was monitored by an URAS I infrared gas analyser in a so-called open IRGA-system with trap type chambers. Transpiration was also measured at the same time by weighing the potted seedlings twice a day. The measuring period lasted eleven days. During the period, the level of both transpiration and net photosynthesis increased about ten times. Furthermore, it was found that the level of photosynthesis at high temperatures was relatively lower at the beginning than at the end of the measuring period.2Pinus sylvestris |
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| ISSN: | 2242-4075 |