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Název:
Effect of elevated CO2 concentration and nitrogen nutrition on mais response to short-term high temperature and drought stress
Autoři: Simor, J. ; Klem, Karel
Typ dokumentu: Příspěvky z konference
Konference/Akce: MendelNet 2021, Brno (CZ), 20211110
Rok: 2021
Jazyk: eng
Abstrakt: Within an experiment conducted in open top chambers in which two mais genotypes differing in stay-green trait were cultivated under elevated atmospheric CO2 concentration (EC) in comparison\nwith ambient CO2 concentration (AC), and in two contrast levels of nitrogen nutrition, the effect of acclimation to these factors on photosynthetic performance and water use efficiency, and subsequent response to short-term high temperature and drought stress was studied. Although EC improved water use efficiency, this effect did not alleviate the response to drought stress, and under some combinations of factors even led to a decrease in CO2 assimilation rate under drought stress. Differences in the stay- green trait between genotypes did not have a major effect on the response to high temperature and drought stress. Differences between genotypes were manifested mainly in the interaction with nitrogen nutrition, while in the Korynt genotype, non fertilised variants showed a lower response of CO2 assimilation rate to drought. Slight alleviating effect of higher nitrogen dose was found under EC conditions, while no nitrogen fertilisation rather increased drought resilience under AC conditions.
Klíčová slova: drought stress; elevated carbon dioxide; mais; nitrogen nutrition
Číslo projektu: EF16_019/0000797
Poskytovatel projektu: GA MŠk
Zdrojový dokument: MendelNet 2021: Proceedings of 28th International PhD Students Conference, ISBN 978-80-7509-821-4
Instituce: Ústav výzkumu globální změny AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: https://hdl.handle.net/11104/0341461
Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-521742
Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav výzkumu globální změny
Konferenční materiály > Příspěvky z konference
Autoři: Simor, J. ; Klem, Karel
Typ dokumentu: Příspěvky z konference
Konference/Akce: MendelNet 2021, Brno (CZ), 20211110
Rok: 2021
Jazyk: eng
Abstrakt: Within an experiment conducted in open top chambers in which two mais genotypes differing in stay-green trait were cultivated under elevated atmospheric CO2 concentration (EC) in comparison\nwith ambient CO2 concentration (AC), and in two contrast levels of nitrogen nutrition, the effect of acclimation to these factors on photosynthetic performance and water use efficiency, and subsequent response to short-term high temperature and drought stress was studied. Although EC improved water use efficiency, this effect did not alleviate the response to drought stress, and under some combinations of factors even led to a decrease in CO2 assimilation rate under drought stress. Differences in the stay- green trait between genotypes did not have a major effect on the response to high temperature and drought stress. Differences between genotypes were manifested mainly in the interaction with nitrogen nutrition, while in the Korynt genotype, non fertilised variants showed a lower response of CO2 assimilation rate to drought. Slight alleviating effect of higher nitrogen dose was found under EC conditions, while no nitrogen fertilisation rather increased drought resilience under AC conditions.
Klíčová slova: drought stress; elevated carbon dioxide; mais; nitrogen nutrition
Číslo projektu: EF16_019/0000797
Poskytovatel projektu: GA MŠk
Zdrojový dokument: MendelNet 2021: Proceedings of 28th International PhD Students Conference, ISBN 978-80-7509-821-4
Instituce: Ústav výzkumu globální změny AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: https://hdl.handle.net/11104/0341461
Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-521742
Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav výzkumu globální změny
Konferenční materiály > Příspěvky z konference
Záznam vytvořen dne 2023-03-28, naposledy upraven 2024-04-27.