Název: Interactive effects of elevated CO2 concentration, nitrogen nutrition and UV-exclusion on yield, aboveground biomass and root development in winter wheat and spring barley
Autoři: Rattanapichai, W. ; Klem, Karel
Typ dokumentu: Příspěvky z konference
Konference/Akce: 21st International PhD Students Conference, Brno (CZ), 20141119
Rok: 2014
Jazyk: eng
Abstrakt: Within the manipulation experiment in open top chambers (Domaninek near Bystrice nad Pernstejnem) that allow simulation of elevated concentration of CO2 ([CO2]) (expected by the end of this century700 mu mol mol(-1)) and exclusion of solar UV radiation, the interactive effects of these environmental drivers together with nitrogen application were studied. Aboveground biomass at the time of harvest, grain yield and root area were studied in winter wheat (variety Bohemia) and spring barley (variety Bojos). From three replications of each treatment were the roots of four plants dug out from the soil and gently washed. Photos of roots taken using the digital camera were analysed by image processing software Image J (plugin SmartRoot). The result showed that the elevation of [CO2] increased the above ground biomass and grain yield. High level of nitrogen increased the stimulatory effect of [CO2] on the above-ground biomass and grain yield. Also UV exclusion stimulated the effect of the evaluated [CO2] on above-ground biomass and grain yield. UV exclusion resulted in higher root area than the treatment of non-exclusion of UV.
Klíčová slova: atmospheric carbon-dioxide; elevated CO2 concentration; nitrogen nutrition; root area; spring barley; stomatal conductance; ultraviolet-b radiation; UV exclusion; winter wheat
Zdrojový dokument: Mendelenet 2014, ISBN 978-80-7509-174-1

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/11104/0305997

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-409516


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav výzkumu globální změny
Konferenční materiály > Příspěvky z konference
 Záznam vytvořen dne 2020-02-05, naposledy upraven 2021-11-24.


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