Ferus p., Hnilička F., Hniličková H., Kurjak D., Kmet J., Otepka P., Gubiš J., Havrlentová M., Malbeck J., Konopková J.
BIOMASS AND BIOENERGY 138: , 2020

Klíčová slova: Canadian poplar (Populus canadensis Moench) clone, Production, Free combustible energy, Heat-stress tolerance, Chlorophyll a fluorescence, Cytokinin
Abstrakt: Cultivation of fast growing poplar (Populus sp.) clones represents an effective means for reaching the 2020 target of the EU-28 renewable energy production. However, considering the continuous climate change, their growth can be markedly affected by summer heat stress episodes in Slovakia. Therefore, in this work two Canadian poplar (Populus �canadensis Moench) clones of different ecological optimum, ‘Gigant’ and ‘Pannonia’, were investigated in respect of productivity and heat stress tolerance. After three-year cultivation, tree height in the clone ‘Gigant’ was 8.9 m, breast trunk diameter 9.3 cm and trunk volume 0.021 m3 compared to 7.9 m, 7.0 cm and 0.012 m3 in clone ‘Pannonia’ (despite of relatively more stable trunk growth rate in summer). Trunks of the latter clone contained 12% bark (vs. 10% in ‘Gigant’), 1.5% ash in the wood (vs. 3%) and showed significantly larger wood density (440 vs. 380 kg m
DOI: Autoři z ÚEB: Jiří Malbeck