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Publication Type J
Authors Siddiqui, Z. S., H. Shahid, J. I. Cho, S. H. Park, T. H. Ryu and S. C. Park
Title Physiological responses of two halophytic grass species under drought stress environment
Source Acta Botanica Croatica
Author Keywords antioxidant enzymes activity Cenchrus ciliaris chlorophyll a fluorescence drought stress Halopyrum mucronatum photosystem II water-use efficiency hydrogen-peroxide osmotic-stress plant salinity wheat tolerance cultivars growth salt
Abstract The physiological responses of two halophytic grass species, Halopyrum mucronatum (L.) Staph. and Cenchrus ciliaris (L.), under drought stress were evaluated. Biomass accumulation, relative water content, free proline, H2O2 content, stomatal conductance, photosynthetic performance and quantum yield (Fv/Fm ratio) were studied. Under drought conditions, these halophytic plants expressed differential responses to water deficit. Stomatal conductance and free proline content were higher in H. mucronatum than in C. ciliaris, while H2O2 content in H. mucronatum was substantially lower than in C. ciliaris. Performance index showed considerable sensitivity to a water deficit condition, more so in C. ciliaris than in H. mucronatum. Results were discussed in relation to comparative physiological performance and antioxidant enzymes activity of both halophytic grasses under drought stress.
Author Address [Siddiqui, Zamin Shaheed; Shahid, Huda] Univ Karachi, Dept Bot, Stress Physiol Lab, Karachi 75270, Pakistan. [Cho, Jung-Il; Park, Sung-Han; Ryu, Tae-Hun; Park, Soo-Chul] Rural Dev Adm, Natl Acad Agr Sci, Suwon 441707, South Korea. Siddiqui, ZS (reprint author), Univ Karachi, Dept Bot, Stress Physiol Lab, Karachi 75270, Pakistan.; Cho, JI (reprint author), Rural Dev Adm, Natl Acad Agr Sci, Suwon 441707, South Korea. zaminss@uok.edu.pk; jungilcho@korea.kr
ISSN 0365-0588
ISBN 0365-0588
29-Character Source Abbreviation Acta Bot. Croat.
Publication Date Mar
Year Published 2016
Volume 75
Issue 1
Beginning Page 31-38
Digital Object Identifier (DOI) 10.1515/botcro-2016-0018
Unique Article Identifier WOS:000374565800005
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