Effect of salt stress on growth characteristics and leaf chlorine and sodium content ‎of rooted cuttings of some pomegranate cultivars in Esfahan region

Document Type : Full Paper

Authors

1 Ph.D. Candidate, Faculty of Agriculture, University Campus, University of Guilan, Rasht, Iran

2 Professor, Faculty of Agriculture, University of Guilan, Rasht, Iran ‎

3 Assistant Professor, Horticulture Crops Research Department, Isfahan Agricultural and Natural Resources ‎Research and Education Center, AREEO, Isfahan, Iran.‎

4 Assistant Professor, Agricultural Engineering Research Department, Isfahan Agricultural and Natural Resources Research and ‎Education Center (AREEO), Isfahan, Iran

Abstract

In this study, the effect of different concentrations of sodium chloride (0, 3, 6, 9 and 12 ds/m) on growth characteristics and leaves sodium and chlorine content of eight pomegranate cultivars (Malas Saveh, Malas Esfahan, Rabab Qermez Shiraz, Gabry Yazd, Gabry Torosh Yazd, Zaq Sefid Yazd, Zaq Torsh Yazd and Malas Toq Peshva) was investigated. The experiment was carried out as a factorial based on randomized block designs with three replications. At the end of study, growth characteristics and leaves sodium and chlorine content were determined. With increasing salinity, plant height and diameter, branches number and leaf chlorophyll index were decreased, but the leave necrosis and chlorine and sodium concentration were increased. Shoots fresh and dry weight were increased slightly when salinity increased up to 3 dS/m and thereafter decreased.. The lowest leaf abscission was found in Zaqe Sefid Yazd and Gabry Yazd when treated with 6 and 12 dS/m. At 12 dS/m, the lowest leaf necrosis was found in Malas Esfahan, but at 6 dS/m, Zaq Sefid Yazd and Malas Esfahan showed the lowest decreasing percent respectively. At 9 and 12 dS/m Malas Saveh and Rabab Qermaz Shiraz showed the highest leave necrosis as compared to the control. In salinity of 6 and 12 dS/m, the Gabry Torosh Yazd and Malas Esfahan cultivars showed the lowest decreasing in chlorophyll leaf index respectively. The lowest chlorine and sodium accumulation at 12 dS/m was observed in Malas Toq Pishva and Zaq Sefid Yazd cultivars.

Keywords

References

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History

  • Receive Date: 08 July 2018
  • Revise Date: 15 December 2018
  • Accept Date: 05 January 2019

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