Volume 3, Issue 10 (3-2015)                   2015, 3(10): 9-28 | Back to browse issues page

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Momenpour A, Imani A, Bakhshi D, Rezaei H. Evaluation of salinity tolerance in some almond genotypes grafted on GF677 rootstock base on morphological characteristic and chlorophyll fluorescence . Plant Process and Function 2015; 3 (10) :9-28
URL: http://jispp.iut.ac.ir/article-1-232-en.html
1- University of Guilan
2- Seeds and Plant Improvement Institute, Karaj.
3- University of Guilan , bakhshid@guilan.ac.ir
4- Soil and Water Institute, Karaj.
Abstract:   (7540 Views)
In order to evaluate the tolerance of some almond genotypes to salinity a pot experiment was carried out with 3 factors cultivar in 11 levels including Touno, Nonparaeil, Mamaie, Shokofeh, Sahand, Fragness, 1- 16, 1-25, A200,13-40 and GF677 and salinity in five levels including 0, 1.2, 2.4, 3.6 and 4.8 g/l of sodium chloride with electrical conductivity 0.5, 2.5, 4.9, 7.3 and 9.8 ds/m, respectively during 30, 60 and 90 days in 2013. The results showed that salinity stress affected the young trees through increasing the amount of minimum fluorescence (FO) and decreasing the maximum fluorescence (Fm) and reducing variable fluorescence (Fv) as well as the ratio of variable fluorescence to maximum fluorescence from 0.83 in the control plants to 0.72 in the upper leaves and 0.70 in the bottom leaves of Sahand and GF677. The result of morphological characteristics showed that GF677 was tolerated to water salinity up to 4.9 ds/m however, higher range of salinity had negative impact on the above factors. Also, the results revealed that salinity stress duration is a key factor causeing several visible damages. Overall, according to morphological characteristics and leaves visual damages and chlorophyll fluorescence parameters, Feragness and Sahand cultivars were the most tolerant and sensitive genotypes to salinity stress, respectively.
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Type of Study: Research | Subject: Salt Stress
Received: 2014/02/1 | Accepted: 2014/06/24 | Published: 2015/03/14

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