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Type of publication: Straipsnis Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or / and Scopus (S1)
Field of Science: Ekologija ir aplinkotyra / Ecology and environmental sciences (N012)
Author(s): Žaltauskaitė, Jūratė;Dikšaitytė, Austra;Miškelytė, Diana;Kacienė, Giedrė;Sujetovienė, Gintarė;Januškaitienė, Irena;Sakalauskienė, Sandra;Miliauskienė, Jurga;Juknys, Romualdas
Title: Does interspecific competition change the barley's response and recovery from heat wave?
Is part of: Journal of agronomy and crop science. New York: Wiley, 2019, Vol. 205, iss. 4
Extent: p. 401-413
Date: 2019
Keywords: Crop;Leaf gas exchange;Oxidative stress;Weed;Heat stress
Abstract: Different species have different sensitivity to heat waves; therefore, interspecific competition may affect the crop response to heat waves. We investigated the effects of heat waves on spring barley (Hordeum vulgare L.) grown with and without wild mustard (Sinapis arvensis L.) as well as the recovery of barleys from stress. The plants were exposed to a 7-day 35/28ºC (day/night) heat wave at ambient CO2 (400 μmol/ mol) and elevated CO2 (800 μmol/mol). All seedlings were rehydrated and returned to control conditions (21/14ºC, CO2 400 μmol/mol) after the cease of heat wave and grown for a 7-day period of recovery. Heat wave had more pronounced negative effect on the barley's aboveground biomass under competition with mustard, whereas the response of root biomass was not influenced by the presence of weeds. The heat wave induced reductions in barley's photosynthetic rate, stomatal conductance and water use efficiency under interspecific competition were higher compared to monocultured conditions. Interspecific competition impaired and delayed the recovery of barley's biomass production and leaf gas exchange parameters after heat wave. Elevated CO2 slightly mitigated negative heat wave impact on the growth and leaf gas exchange parameters but had no effect during the recovery period
Affiliation(s): Aplinkotyros katedra
Gamtos mokslų fakultetas
Lietuvos agrarinių ir miškų mokslų centro filialas Sodininkystės ir daržininkystės institutas
Vytauto Didžiojo universitetas
Appears in Collections:1. Straipsniai / Articles
Universiteto mokslo publikacijos / University Research Publications

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