Název: Comparison of leaf area index dynamics and radiation use efficiency of C3 crops in the Czech Republic
Autoři: Tripathi, Abishek ; Pohanková, Eva ; Trnka, Miroslav ; Klem, Karel
Typ dokumentu: Příspěvky z konference
Konference/Akce: Quo vaditis agriculture, forestry and society under Global Change?, Velké Karlovice (CZ), 20171002
Rok: 2017
Jazyk: eng
Abstrakt: Leaf area index (LAI) and radiation use efficiency (RUE) are key parameters for plant growth and productivity.\nBecause of irregularities in weather conditions, accurate estimation of crop production requires\nunderstanding relationships between weather, LAI, RUE, and final production. It is thus important to\nstudy how the LAI dynamics, leaf area duration (LAD), and RUE are related to aboveground biomass production\nfor different crops. In our study, we compared aboveground dry mass production, LAI dynamics,\nRUE, and LAD in three C3 crops (spring barley [SB], winter wheat [WW], and oilseed rape [OSR]) in the\nCzech Republic. LAI was measured on the basis of transmitted photosynthetically active radiation, LAD\nwas calculated by counting the number of days in the growing season, RUE was measured using Beer’s\nlaw, and the aboveground dry mass was estimated at the time of harvest. Results of our study showed high\nbiomass production and RUE in SB while there was highest maximum LAI (LAImax) and LAD in OSR. We\nconcluded that LAI dynamics or LAImax do not fully reflect the crop production and that RUE may be considered\nas a better indicator for aboveground dry mass production.
Klíčová slova: Czech Republic; index dynamics; leaf area; radiations use efficiency
Číslo projektu: LM2015061 (CEP)
Poskytovatel projektu: GA MŠk
Zdrojový dokument: Quo vaditis agriculture, forestry and society under global change? Conference proceeding, ISBN 978-80-87902-22-6

Instituce: Ústav výzkumu globální změny AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0280275

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-371521


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav výzkumu globální změny
Konferenční materiály > Příspěvky z konference