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Journal of Arid Land  2016, Vol. 8 Issue (2): 254-263    DOI: 10.1007/s40333-015-0023-2
Research Articles     
Maternal salinity environment affects salt tolerance during germination in Anabasis setifera: A facultative desert halophyte
Ali EL-KEBLAWY1,2*, Sanjay GAIROLA3, Arvind BHATT4
1 Department of Applied Biology, Faculty of Science and Sharjah Research Academy, University of Sharjah, Sharjah 27272, the United Arab Emirates;
2 Department of Biology, Faculty of Education in Al-Arish, Suez Canal University, Ismailia 41522, Egypt;
3 Sharjah Seed Bank and Herbarium, Sharjah Research Academy, Sharjah 27272, the United Arab Emirates;
4 Gulf Organization for Research & Development, Doha 210162, Qatar
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Abstract  The effects of maternal salinity and light incubation on the salinity tolerance of the facultative halophyte Anabasis setifera during their germination stages were assessed. Seeds were collected from non-saline habitats in Egypt and saline habitats in the United Arab Emirates (UAE). The seeds of the two populations were germinated in 0, 100, 200, 400, 600 and 800 mM NaCl, and incubated at 25°C/15°C in both 12-h light and 12-h darkness regimes and continuous darkness. Significantly more seeds germinated in the Egyptian population than in the UAE population. Salinity tolerance was significantly greater with the Egyptian population than with the UAE population, especially under the conditions of higher salinities. The difference in salinity tolerance between the seeds of two populations was attributed to their seed mass. In addition, germination was significantly faster for the Egyptian population than for the UAE population. Most of the saline treated seeds were able to recover their germination when transferred to distilled water, but this depended on their maternal salinity and light incubation. Recovery from higher salinities was significantly better for the seeds under darkness than for those under light in the UAE population, but the reverse was true for the seeds in the Egyptian population. The higher salinity tolerance for the A. setifera seeds from the non-saline Egyptian population and the lower salinity tolerance for the seeds from the saline UAE population cannot explain their natural distribution. Further studies about other possible roles, such as levels of different promoting and inhibiting phytohormones, are needed to understand the importance of salinity as an environmentally induced maternal effect.

Key wordsvegetation cover      MODIS NDVI      natural zones      seasonal dynamics      stability      Mongolia     
Received: 23 August 2015      Published: 01 April 2016

This work was supported by the Qatar National Research Fund (5-260-1-053).

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Ali EL-KEBLAWY, Sanjay GAIROLA, Arvind BHATT. Maternal salinity environment affects salt tolerance during germination in Anabasis setifera: A facultative desert halophyte. Journal of Arid Land, 2016, 8(2): 254-263.

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