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- Title
Influence du charbon actif sur la croissance primaire des plantules de pin gris.
- Authors
Naydenov, Krassimir; Tremblay, Francine; Bergeron, Yves; Goudiaby, Venceslas
- Abstract
In the boreal forest, the beneficial effect of wildfire on germination substrates has often been linked to the adsorption by charcoal of phenolic compounds detrimental for seedling germination and growth. Our goal was to show that active charcoal has direct positive effects on germination and early growth of jack pine (Pinus banksiana Lamb.) plantlets, a species well adapted to fire. Four concentrations of active charcoal (0%, 50%, 100%, and 150% seed mass) along with two temperatures (26–27 °C and 18–20 °C) were tested in vitro, in Petri dishes, under constant moisture conditions. Results showed that adding active charcoal to the substrate had no significant effect on jack pine seed germination but inhibited plantlet growth at concentrations over 100%. Significant growth increase was observed only with 50% charcoal at the highest temperature (26–27 °C). Deformities were noted at the apex of radicles, particularly with low temperatures and high levels of active charcoal in the substrate.
- Subjects
TAIGAS; CHARCOAL; PHENOLS; SEEDLINGS; JACK pine
- Publication
Canadian Journal of Forest Research, 2006, Vol 36, Issue 3, p761
- ISSN
0045-5067
- Publication type
Article
- DOI
10.1139/X05-274