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Publication Type J
Authors Roy, S; Chakraborty, U
Author Full Name Roy, Swarnendu; Chakraborty, Usha
Title Screening of salt-tolerance potential of some native forage grasses from the eastern part of Terai-Duar grasslands in India
Source TROPICAL GRASSLANDS-FORRAJES TROPICALES
Language English
Document Type Article
Author Keywords Biomarkers; hierarchical cluster analysis; leaf disc senescence bioassay; salinity tolerance
Keywords Plus SALINITY TOLERANCE; STRESS TOLERANCE; PROLINE CONTENTS; ABIOTIC STRESS; WATER-STRESS; ARABIDOPSIS; LEAVES; PLANTS; NACL; MECHANISMS
Abstract The salt tolerance of 12 native forage grasses from the eastern part of Terai-Duar grasslands was assessed using a rapid method of leaf disc senescence bioassay. Samples of these grasses were grown in untreated water as well as 100 and 200 mM NaCl solutions for periods of 3, 6 and 9 days. Discs of fresh leaf were then placed in untreated water as well as in 100 and 200 mM NaCl solutions for 96 hours. Quantitative effects were measured as the effects on chlorophyll concentration in leaves in response to exposure to the varying solutions. From these results, the salt sensitivity index (SSI) of the individual grasses was determined. The SSI values indicated that Imperata cylindrica, Digitaria ciliaris and Cynodon dactylon were most salt-tolerant of all grasses tested. Further characterization of the grasses was done by observing the changes in 6 biomarkers for salinity tolerance: relative water content, total sugar concentration, proline concentration, electrolyte leakage, membrane lipid peroxidation and H2O2 concentration following exposure to 100 and 200 mM NaCl concentrations for 3, 6 and 9 days. Finally, hierarchical cluster analysis using the software CLUSTER 3.0 was used to represent the inter-relations among the physiological parameters and to group the grasses on the basis of their salinity tolerance. The overall results indicated that Imperata cylindrica, Eragrostis amabilis, Cynodon dactylon and Digitaria ciliaris were potentially salt-tolerant grasses and should be planted on saline areas to verify our results. On the other hand, Axonopus compressus, Chrysopogon aciculatus, Oplismenus burmanni and Thysanolaena latifolia were found to be highly salt-sensitive and would be unsuitable for use in saline areas.
Author Address [Roy, Swarnendu; Chakraborty, Usha] Univ North Bengal, Dept Bot, Plant Biochem Lab, Darjeeling 734013, W Bengal, India; [Roy, Swarnendu] Kurseong Coll, Dept Bot, Dow Hill Rd, Darjeeling, W Bengal, India; [Roy, Swarnendu] Univ Gour Banga, Dept Bot, Mol & Analyt Biochem Lab, Malda, W Bengal, India
Reprint Address Chakraborty, U (reprint author), Univ North Bengal, Dept Bot, Plant Biochem Lab, Darjeeling 734013, W Bengal, India.
E-mail Address ucnbu2012@gmail.com
Funding Agency and Grant Number CSIR, New Delhi [09/285(0046)/2008-EMR-I]; UGC, ERO, Kolkata [PSW-80/12-13]
Funding Text The authors are grateful to CSIR, New Delhi (Award No. 09/285(0046)/2008-EMR-I) and UGC, ERO, Kolkata (Minor Research Project No. PSW-80/12-13) for the financial support which enabled the carrying out of this work.
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Cited Reference Count 45
Publisher CENTRO INT AGRICULTURA TROPICAL-CIAT
Publisher City VALLE DEL CAUCA
Publisher Address A A 6713, KM 17 RECTA CALI-PALMIRA, CALI,, VALLE DEL CAUCA, 00000, COLOMBIA
ISSN 2346-3775
29-Character Source Abbreviation TROP GRASSL-FORRAJES
ISO Source Abbreviation Trop. Grassl.-Forrajes Trop.
Publication Date SEP
Year Published 2017
Volume 5
Issue 3
Beginning Page 129
Ending Page 142
Digital Object Identifier (DOI) 10.17138/TGFT(5)129-142
Page Count 14
Web of Science Category Agriculture, Dairy & Animal Science; Agronomy; Plant Sciences
Subject Category Agriculture; Plant Sciences
Document Delivery Number FK0UE
Unique Article Identifier WOS:000413194900003
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