Current issue: 58(5)
Select issue
Silva Fennica 1926-1997
1990-1997
1980-1989
1970-1979
1960-1969
1950-1959
1940-1949
1926-1939
Acta Forestalia Fennica
1992-1999
1984-1991
1974-1983
1968-1973
1953-1968
1933-1952
1913-1932
Articles by Aulis Leppänen
Category : Research article
article id 93,
category
Research article
(2011).
Increasing survival and growth of Scots pine seedlings with selection based on autumn coloration.
Silva Fennica
vol.
45
no.
4
article id 93.
https://doi.org/10.14214/sf.93
Abstract |
View details
|
Full text in PDF |
Author Info
This study evaluates the possibility of using autumn coloration of young Scots pine (Pinus sylvestris L.) seedlings as an indicator of adaptation to harsh climate conditions. One-year old seedlings from natural stands with different origins and seed orchards were classified as “red/reddish” and “green” based on the needle color after artificially increased night length in nursery and then measured after 14 years in field trials. In almost all the studied groups seedlings classified as “red/reddish” had significantly higher survival rate than seedlings classified as “green”. The survival of “red/reddish” was 14.2% higher than “green” among natural stand seed material and 56.2% among seed orchard material. During the study period the survival difference between “red/reddish” and “green” seedlings tended to increase. The seedling color had limited connection with the height growth, even though the trees classified as “red/reddish” were slightly taller than those classified as “green”. However, the total productivity over all field trials, described here as a heightsum, of “red/reddish” trees was 15% higher than productivity of “green” trees from natural stand material, and 61% higher than those from seed orchard material. It seems that controlled selection based on autumn color can be utilized within seed crops of different types with the aim to increase the adaptability of seed material to different environmental conditions.
-
Pulkkinen,
Metla, Haapastensyrjä, Läyliäinen, Finland
E-mail:
pertti.pulkkinen@metla.fi
- Varis, Metla, Haapastensyrjä, Läyliäinen, Finland E-mail: sv@nn.fi
- Jaatinen, Metla, Haapastensyrjä, Läyliäinen, Finland E-mail: rj@nn.fi
- Leppänen, Metla, Haapastensyrjä, Läyliäinen, Finland E-mail: al@nn.fi
- Pakkanen, Metla, Haapastensyrjä, Läyliäinen, Finland E-mail: ap@nn.fi
Click this link to register to Silva Fennica.
If you are a registered user, log in to save your selected articles for later access.
Your selected articles
Silva Fennica ·
Finnish Society of Forest Science
