Volume 4, Number 12 (VOL. 4, No. 12, 2015 2015)                   jppf 2015, 4(12): 51-59 | Back to browse issues page


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Effect of salinity on gas exchange parameters in four olive cultivars . jppf. 2015; 4 (12) :51-59
URL: http://jispp.iut.ac.ir/article-1-167-en.html

Abstract:   (1791 Views)
Low quality of irrigation water along with increasing salinity level has reduced the olive yield over recent years in Iran. Screening of salinity tolerance in olive cultivars using gas-exchange parameters, water use efficiency, and relative leaf chlorophyll content are important in olive development programs. This study was carried out to assess the salinity tolerance of four olive cultivars (Amygdala, Dakal, Shiraz and Zard) under greenhouse condition. A factorial experiment through completely randomized design with four replications and four levels of salinity including 0, 100, 150, and 200 mM NaCl were used. The results showed that with increasing salinity levels CO2 assimilation rate, stomatal conductance, transpiration rate, water use efficiency, and relative chlorophyll content decreased and internal CO2 concentration increased. The results also indicated that there were significant differences among the examined olive cultivars. In overall, the results showed that “Zard” and “Shiraz’ cultivars were the most tolerant cultivars to salt stress.
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Type of Study: Research | Subject: Salt Stress
Received: 2013/11/20 | Accepted: 2014/12/28 | Published: 2015/07/26

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