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Type of publication: research article
Type of publication (PDB): Straipsnis Clarivate Analytics Web of Science / Article in Clarivate Analytics Web of Science (S1)
Field of Science: Ekologija ir aplinkotyra / Ecology and environmental sciences (N012)
Author(s): Januškaitienė, Irena;Žaltauskaitė, Jūratė;Dikšaitytė, Austra;Sujetovienė, Gintarė;Miškelytė, Diana;Kacienė, Giedrė;Sakalauskienė, Sandra;Miliauskienė, Jurga;Juknys, Romualdas
Title: Interspecific competition changes photosynthetic and oxidative stress response of barley and barnyard grass to elevated CO2 and temperature
Is part of: Agricultural and food science. Helsinki : Scientific Agricultural Society of Finland, 2018, Vol. 27, iss. 1
Extent: p. 50-62
Date: 2018
Note: eISSN 1795-1895. Funding agency: Research Council of Lithuania, SIT-8/2015
Keywords: Climate change;Interspecific competition;Photosynthesis;JIP-test;Oxidative stress
Abstract: This work focuses on the investigation of competition interaction between C3 crop barley (Hordeum vulgare L.) and C4 weed barnyard grass (Echinochloa crus-galli L.) at 2 times higher than ambient [CO2] and +4 0C higher ambient temperature climate conditions. It was hypothesized that interspecific competition will change the response of the investigated plants to increased [CO2] and temperature. The obtained results showed that in the current climate conditions, a higher biomass and photosynthetic rate and a lower antioxidant activity were detected for barley grown under interspecific competition effect. While in the warmed climate and under competition conditions opposite results were detected: a higher water use efficiency, a higher photosynthetic performance, a lower dissipated energy flux and a lower antioxidant enzymes activity were detected for barnyard grass plants. This study highlights that in the future climate conditions, barnyard grass will become more efficient in performance of the photosynthetic apparatus and it will suffer from lower oxidative stress caused by interspecific competition as compared to barley
Affiliation(s): Aplinkotyros katedra
Lietuvos agrarinių ir miškų mokslų centras, Sodininkystės ir daržininkystės institutas
Lietuvos agrarinių ir miškų mokslų centro filialas, Sodininkystės ir daržininkystės institutas
Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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