Eco-physiological studies on young Scots pine stands. III.
The proportions of needle and wood in current-year shoots in crown systems of young Scots pine ( L.) trees was studied. The proportion of needles out of the total shoot biomass increased according to the increasing number of the whorl counted from the apex. In the lower part of the crown...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Finnish Society of Forest Science
1980-01-01
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| Series: | Silva Fennica |
| Online Access: | https://www.silvafennica.fi/article/5080 |
| Summary: | The proportions of needle and wood in current-year shoots in crown systems of young Scots pine ( L.) trees was studied. The proportion of needles out of the total shoot biomass increased according to the increasing number of the whorl counted from the apex. In the lower part of the crown system the needle biomass of newly-formed shoots was 50â60 fold compared to that of wood and bark biomass. In the upper part of the crown system the same ratio was 1â2. The variation in ratio between needle and wood biomass was whorl-specific and independent of tree class. The magnitude of the ratio was not related to the position of the tree in the stand nor to the prevailing light conditions within the state.Pinus sylvestris |
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| ISSN: | 2242-4075 |