Growth and visible responses of Scots pine (Pinus sylvestris L.) seedlings to simulated summer frost |
| |
Authors: | K. Holopainen |
| |
Abstract: | Scots pine seedlings, 20–30 days old, were exposed to simulated summer frost in controlled environment growth chambers. The responses observed showed extreme variation between individual seedlings; seedlings suffering from needle-necrosis, healthy-looking, and dead seedlings were found in the same treatment. Four days exposure to temperatures below –4.5°C caused multiple-leaders maximally in 7.7 % of the pine seedlings and resulted in decreased shoot and root dry weight and shoot length. |
| |
Keywords: | |
|
|