<abstract xmlns="http://www.w3.org/1999/xhtml">In the last decades, a new wave of oak decline has been observed in Poland. The most important pathogenic organisms involved in this phenomenon are probably soil-borne pathogens <italic>Phytophthora</italic>genus, especially <italic>P. quercina</italic>. In this work, we sought to test the influence of elevated CO2 concentration on the susceptibility of oaks (<italic>Quercus robur</italic> L.) to infection by <italic>P. quercina</italic>. In order to test the susceptibility of oak fine roots to infection, we applied phosphite-based fertiliser Actifos in 0.6% concentration. One-year-old oak seedlings were grown for one year in greenhouse with either an ambient atmosphere (400 ppm CO2) or an elevated (800 ppm) concentration of CO2. Oaks grown at the elevated CO2 concentration developed longer shoots as proved by statistically significant differences. However, there was no difference in the development of root systems. The application of Actifos had a positive significant effect on the development of shoots and the surface area of fine roots under the elevated CO2 concentration.</abstract>

In the last decades, a new wave of oak decline has been observed in Poland. The most important pathogenic organisms involved in this phenomenon are probably soil-borne pathogens Phytophthoragenus, especially P. quercina. In this work, we sought to test the influence of elevated CO2 concentration on the susceptibility of oaks (Quercus robur L.) to infection by P. quercina. In order to test the susceptibility of oak fine roots to infection, we applied phosphite-based fertiliser Actifos in 0.6% concentration. One-year-old oak seedlings were grown for one year in greenhouse with either an ambient atmosphere (400 ppm CO2) or an elevated (800 ppm) concentration of CO2. Oaks grown at the elevated CO2 concentration developed longer shoots as proved by statistically significant differences. However, there was no difference in the development of root systems. The application of Actifos had a positive significant effect on the development of shoots and the surface area of fine roots under the elevated CO2 concentration.

<italic>Phytophthora quercina</italic> infections in elevated CO2 concentrations

Technical University in Białystok, Forest Faculty, Piłsudskiego 8, 17-200 Hajnówka,

Forest Research Institute, Department of Forest Protection, Sękocin Stary, Braci Leśnej 3, 05-090 Raszyn,

Forest Research Institute, Laboratory of Molecular Biology, Sękocin Stary, Braci Leśnej 3, 05-090 Raszyn,

Folia Forestalia Polonica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

 infections in elevated CO concentrations

In the last decades, a new wave of oak decline has been observed in Poland. The most important pathogenic organisms involved in this phenomenon are probably...

Phytophthora quercina infections in elevated CO₂ concentrations

Published Online: Oct 08, 2016

Page range: 131 - 141

Received: Mar 11, 2016

Accepted: Aug 04, 2016

DOI: https://doi.org/10.1515/ffp-2016-0015

Keywords
Actifos, carbon dioxide concentration

© 2016 Tomasz Oszako et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Phytophthora quercina infections in elevated CO2 concentrations

Published Online: Oct 08, 2016

Page range: 131 - 141

Received: Mar 11, 2016

Accepted: Aug 04, 2016

DOI: https://doi.org/10.1515/ffp-2016-0015

KeywordsActifos, carbon dioxide concentration

© 2016 Tomasz Oszako et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Phytophthora quercina infections in elevated CO₂ concentrations

Keywords
Actifos, carbon dioxide concentration