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oai:recercat.cat:2445/1954582025-12-05T09:41:37Zcom_2072_1057col_2072_478778col_2072_478917

The Response of Arundo donax L. (C3) and Panicum virgatum (C4) to different stresses Sánchez, Elena Gil, S. Azcón Bieto, Joaquín Nogués Mestres, Salvador Salinitat Fred Gramínies Salinity Cold Grasses In this work, two perennial rhizomatous grasses (Arundo donax L. (giant reed; C3) and Panicum virgatum L. (switchgrass; C4)) considered as promising energy crops have been subjected to four different types of stress in two experiments: (i) both species were subjected to four salinity and water stress treatments [well-watered with non-saline solution (WW S−), low-watered with non-saline solution (WS S-), well-watered with saline solution (WW S+) and low-watered with saline solution (WS S+)]; and (ii) both species were subjected to three temperature and light treatments [ambient temperature and light (C), ambient temperature and darkness (AD) and cold temperature and darkness (CD)]. Photosynthetic and physiological parameters as well as biomass production were measured in these plants. It can be hypothesized that a higher photosynthesis rate (Asat) was be observed in switchgrass as a consequence of its C4 metabolic pathway. However, our results indicated a similar Asat at the beginning of the experiment for both species. This could be due to switchgrass being an NAD-ME C4 type whereas giant reed has been reported as a C3 species with a high photosynthetic rate. We showed that switchgrass seems to be more resistant to stresses such as water stress, salinity and cold than giant reed in our greenhouse conditions. 2023-03-17T17:58:22Z 2023-03-17T17:58:22Z 2016-02 2023-03-17T17:58:22Z info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Versió postprint del document publicat a: https://doi.org/10.1016/j.biombioe.2015.12.021 Biomass & Bioenergy, 2016, vol. 85, p. 335-345 https://doi.org/10.1016/j.biombioe.2015.12.021 cc-by-nc-nd (c) Elsevier Ltd, 2016 https://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Elsevier Ltd Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)