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Publication Type J
Authors Saoudi, W; Badri, M; Taamalli, W; Zribi, OT; Gandour, M; Abdelly, C
Author Full Name Saoudi, W.; Badri, M.; Taamalli, W.; Zribi, O. T.; Gandour, M.; Abdelly, C.
Title Variability in response to salinity stress in natural Tunisian populations of Hordeum marinum subsp. marinum
Source PLANT BIOLOGY
Language English
Document Type Article
Author Keywords Hordeum marinum ssp marinum; lines; morpho-physiological variability; quantitative traits; salinity stress; SRI
Keywords Plus SALT TOLERANCE; WATER; BARLEY; WILD; AVAILABILITY; MARITIMUM; PROLINE; DROUGHT; GROWTH; PLANTS
Abstract Soil salinity is one of the most serious environmental factors affecting crop productivity around the world. In this study, we analysed morpho-physiological variation in responses to salt stress in Tunisian populations of Hordeum marinum subsp. marinum. The plants were grown under two treatments (0 and 200 mm NaCl) until maturity. A total of 19 quantitative traits were measured before and during the harvest. It was observed that most studied traits are influenced by the increasing salinity. High to moderate broad-sense heritability (H-2) were noted for most of parameters under control and salt treatment, implying that salt tolerance is moderately heritable and environmental variation plays an equally important role. The majority of correlations between measured traits under the two treatments are positive, where the strongest correlations were between spike number (SN) and weight (SW). Based on the salt response index (SRI) values, SN and SW are the most affected by salinity. The 150 studied lines formed three groups according to the SRI values of the 19 quantitative parameters, of which 101 were moderately sensitive, 27 tolerant and 22 highly tolerant. Overall genetic variation of H. marinum in response to salt stress may provide novel insight to identify genes responsible for salt tolerance.
Author Address [Saoudi, W.; Badri, M.; Taamalli, W.; Zribi, O. T.; Gandour, M.; Abdelly, C.] Ctr Biotechnol Borj Cedria, Lab Extremophile Plants, BP 901, Hammam Lif 2050, Tunisia; [Taamalli, W.] Ctr Biotechnol Borj Cedria Hammam Lif, Lab Olive Biotechnol, Hammam Lif, Tunisia; [Gandour, M.] Fac Sci & Tech Sidi Bouzid, Sidi Bouzid, Tunisia
Reprint Address Saoudi, W (reprint author), Ctr Biotechnol Borj Cedria, Lab Extremophile Plants, BP 901, Hammam Lif 2050, Tunisia.
E-mail Address saoudiwarda1@gmail.com
Funding Agency and Grant Number Tunisian Ministry of Higher Education and Scientific Research [LR10 CBBC 02]
Funding Text The financial support of the Tunisian Ministry of Higher Education and Scientific Research (LR10 CBBC 02) is acknowledged.
Cited Reference Count 42
Publisher WILEY
Publisher City HOBOKEN
Publisher Address 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
ISSN 1435-8603
29-Character Source Abbreviation PLANT BIOLOGY
ISO Source Abbreviation Plant Biol.
Publication Date JAN
Year Published 2019
Volume 21
Issue 1
Beginning Page 89
Ending Page 100
Digital Object Identifier (DOI) 10.1111/plb.12890
Page Count 12
Web of Science Category Plant Sciences
Subject Category Plant Sciences
Document Delivery Number HE2BZ
Unique Article Identifier WOS:000453080700010
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