Modelling the onset of phenological phases of spring barley (Hordeum vulgare L.)

0561738 - ÚVGZ 2023 RIV CZ eng K - Conference Paper (Czech conference)
Dížková, Petra - Bartošová, Lenka - Hájková, L. - Balek, Jan - Bláhová, Monika - Bohuslav, Jakub - Pohanková, Eva - Trnka, Miroslav - Žalud, Zdeněk
Modelling the onset of phenological phases of spring barley (Hordeum vulgare L.).
MendelNet 2021: Proceedings of 28th International PhD Students Conference. Brno: Mendel University in Brno, 2021 - (Cerkal, R.; Březinová Belcredi, N.; Prokešová, L.), s. 19-24. ISBN 978-80-7509-821-4.
[MendelNet 2021, Brno, 2021/11/10-2021/11/10, Mendelova univerzita. Brno (CZ), 10.11.2021-10.11.2021]
R&D Projects: GA MŠMT(CZ) EF16_019/0000797
Institutional support: RVO:86652079
Keywords : phenology * temperature * phenoclim * climate parameters
OECD category: Plant sciences, botany
https://mendelnet.cz/pdfs/mnt/2021/01/02.pdf

The onset of phenological phases of plant species is influenced mainly by air temperature. Each phenophase has its temperature limits (base temperature and temperature sum), which must be reached for each phase to occur. With knowledge of these limits, it is possible to predict the onset of phenological phases in localities where only meteorological data are available and also in future climate conditions. In this work, we used phenological ground-based data from 33 stations within the Czech Republic to calculate the most relevant meteorological predictors. PhenoClim software was used for phenological and meteorological data calibration and modelling. The smallest error that allows us to predict the term of the phenophases was found for the heading of spring barley (Hordeum vulgare L.), as the best predictor was the maximum daily temperature and the statistical error was 3.6 days.
Permanent Link: https://hdl.handle.net/11104/0334263