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Authors Bagdi, DL; Bagri, GK
Author Full Name Bagdi, D. L.; Bagri, G. K.
Title Effect of saline irrigation water on gas exchange and proline metabolism in ber (Ziziphus)
Source JOURNAL OF ENVIRONMENTAL BIOLOGY
Language English
Document Type Article
Author Keywords Cations; Gas exchange; Photosynthesis; Proline metabolism; Salinity
Keywords Plus SALT STRESS; NACL; GROWTH
Abstract An experiment was conducted in pots of 25 kg capacity to study the effect of saline irrigation (EC 0,5,10,15 and 20 dSm(-1)) prepared by mixing NaCl, NaSO4, CaCl and MgCl2 in 3:1 ratio of chloride and sulphate on gas exchange traits, membrane stability, chlorophyll stability index and osmolytic defense mechanism in Ziziphus rotundifolia and Ziziphus nummularia species of Indian jujube (Z.mauritiana). Result showed that net photosynthetic rate (P-N), transpiration (e) and stomatal conductance were comparatively lower in Ziziphus nummularia, which further declined with increasing level of saline irrigation water. Chlorophyll stability and membrane stability also declined significantly in salt stress, with higher magnitude in Ziziphus nummularia. The activity of proline anabolic enzymes; Delta(1)-Pyrrolline-5-carboxylate reductase, Delta(1)-Pyrrolline-5-carboxylate synthetase and Ornithine-delta-aminotransferase were recorded higher in Ziziphus rotundifolia with decrease in proline dehydrogenase. The sodium content was observed higher in roots of Ziziphus rotundifolia and leaves of Ziziphus nummularia. Therefore, it is suggested that salt tolerance mechanism was more efficiently operative in Ziziphus rotundifolia owing to better management of physiological attributes, osmolytic defense mechanism and restricted translocation of sodium from root to leaves along with larger accumulation of potassium in its leaves.
Author Address [Bagdi, D. L.] SKN Coll Agr, Dept Plant Physiol, Jobner 303329, India; [Bagri, G. K.] Banaras Hindu Univ, Inst Agr Sci, Dept Soil Sci & Agr Chem, Varanasi 221005, Uttar Pradesh, India
Reprint Address Bagdi, DL (corresponding author), SKN Coll Agr, Dept Plant Physiol, Jobner 303329, India.
E-mail Address dlbagdi.2000@gmail.com
Times Cited 2
Total Times Cited Count (WoS, BCI, and CSCD) 2
Publisher TRIVENI ENTERPRISES
Publisher City LUCKNOW
Publisher Address C/O KIRAN DALELA, 1/206 VIKAS NAGAR, KURSI RD, LUCKNOW 226 022, INDIA
ISSN 0254-8704
29-Character Source Abbreviation J ENVIRON BIOL
ISO Source Abbreviation J.Environ.Biol.
Publication Date SEP
Year Published 2016
Volume 37
Issue 5
Beginning Page 873
Ending Page 879
Page Count 7
Web of Science Category Environmental Sciences
Subject Category Environmental Sciences & Ecology
Document Delivery Number DW0DT
Unique Article Identifier WOS:000383311800003
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