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 containing the keyword 'germination ecology'
Category : Article
article id 5320,
category
Article
(1987).
Germination ecology of Galeopsis bifida (Lamiaceae) as a pioneer species in forest succesion.
Silva Fennica
vol.
21
no.
3
article id 5320.
https://doi.org/10.14214/sf.a15477
Keywords:
prescribed burning;
Galeopsis bifida;
germination ecology;
pioneer species;
forest succession;
release of seed dormancy;
clear-cut area
Abstract |
View details
|
Full text in PDF |
Author Info
The occurrence of Caleopsis bifida on clear-cut and burned forest soil and its disappearance in 4–6 years after disturbance is attributed to its germination ecology. Initially the seeds are dormant 96–100% and remain dormant in nylon gaze bags in different types of forest humus layers at least 10 years. Dormancy is released in laboratory (1) by treatment of 100 ppm aqueous solution of GA3, (2) by heating the dormant seeds to 40–55°C for 1–5 h, and (3) by 1% KNO3 solution. It is concluded that conditions in clear-cut and burned areas favour germination of seeds in regard to temperature and content of nitrates in contrast to humus of closed vegetation where the seeds remain dormant.
The PDF includes an abstract in Finnish.
-
Hintikka,
E-mail:
vh@mm.unknown
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
