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Difference in physiological traits among salt-stressed barley genotypes

Citation

Huang, YZ and Zhang, GP and Wu, FB and Chen, JX and Zhou, M, Difference in physiological traits among salt-stressed barley genotypes, Communications in Soil Science and Plant Analysis, 37, (3/4) pp. 557-570. ISSN 0010-3624 (2006) [Refereed Article]

DOI: doi:10.1080/00103620500449419

Abstract

The effect of salinity on some physiological parameters in 16 barley genotypes with different salt tolerance was investigated. The results showed 50 mM NaCl treatment increased Na+/K+ ratio, malondialdehyde (MDA) and proline contents, and decreased cell membrane stability index (CMSI) and fresh shoot biomass (FSB) of all tested genotypes. Salt stress also resulted in a decreased chlorophyll (Chl) content and net photosynthesis (Pn) for most genotypes. Under higher salt stress (300 mM NaCl), the marked increase for Na+/K+, MDA, and proline content, and decrease for other parameters were found for all genotypes. The affected extent of these parameters by salt stress varied with genotypes. Proline accumulation in barley was associated with injured extent under salt stress, indicating it is not a defensive reaction to the stress. K+ uptake was less affected, whereas Na+ accumulation in plants was enhanced under high salt stress. The correlation analysis showed that MDA and proline content, Na + concentration and Na+/K+ were negatively correlated with FSB, whereas other parameters examined in the study were positively correlated with FSB. Copyright © Taylor & Francis Group, LLC.

Item Details

Item Type:Refereed Article
Research Division:Agricultural and Veterinary Sciences
Research Group:Crop and Pasture Production
Research Field:Crop and Pasture Improvement (Selection and Breeding)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Winter Grains and Oilseeds
Objective Field:Barley
Author:Zhou, M (Professor Meixue Zhou)
ID Code:33705
Year Published:2006
Web of Science® Times Cited:13
Deposited By:Agricultural Science
Deposited On:2006-08-01
Last Modified:2007-11-11
Downloads:0

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