The poplar clone (populus Maximowiczii A. Henry × P. Nigra L.) growth under the controlled environment of growth chambers

0485112 - ÚVGZ 2019 RIV SK eng C - Conference Paper (international conference)
Hlaváčová, Marcela - Orság, Matěj - Fischer, Milan - Klem, Karel - Trnka, Miroslav
The poplar clone (populus Maximowiczii A. Henry × P. Nigra L.) growth under the controlled environment of growth chambers.
Towards climatic services. Conference proceedings. Nitra: Slovak University of Agriculture in Nitra, 2015 - (Šiška, B.; Nejedlík, P.; Eliašová, M.), s. 26-26. ISBN 978-80-552-1389-7.
[Towards climatic services. Nitra (SK), 15.09.2015-18.09.2015]
R&D Projects: GA MŠMT(CZ) LO1415; GA MŠMT(CZ) EE2.3.20.0248; GA MŠMT LH12037
Institutional support: RVO:86652079
Keywords : short-rotation coppice * poplar clone J-105 * growth chamber
OECD category: Meteorology and atmospheric sciences

The objective of this study is to test the clone J-105 (Populus maximowiczii A. Henry × Populus nigra L.) responses to high temperatures under different water supply, CO2 and VPD levels. The experiment was established in May, 2014 by 144 cuttings planted into the pots. Sixty pots were placed into 5 growth chambers in July with the number of 12 pots per 1 chamber. The pots were split into 2 variants per 1 chamber – wet and dry treatment. The measurements, consisted in measurements of the plant heights, soil moisture (using ThetaProbe Soil Moisture Sensor) and CO2 response curves (using LI-6400 Portable Photosynthesis System), were carried out weekly. There were 4 parameters set up within each chamber under 2 protocols: (1) daily temperature course, (2) relative humidity (Rh) that together with temperature enable to control VPD values, (3) CO2 values and (4) PAR. The protocol for the control group was also established. The randomization between chambers was carried out weekly. The initial hypothesis was based on the assumption that elevated CO2 concentration (EC) will improve the water use efficiency and thus reduce the negative impact of drought, while increased air temperature and higher VPD will, on the contrary, amplify the negative effects of drought.
Permanent Link: http://hdl.handle.net/11104/0280200