Volume 13, Issue 60 (vol. 13, no. 60 2024)
2024, 13(60): 235-250 |
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Nouri P, Jahan Bakhsh S, Farzaneh S, Raeisi Sadati S Y, Heydarzadeh S. Investigating the physiological response of different genotypes of sugar beet in different levels of salinity stress. Plant Process and Function 2024; 13 (60) : 14
URL: http://jispp.iut.ac.ir/article-1-1991-en.html
URL: http://jispp.iut.ac.ir/article-1-1991-en.html
Pariya Nouri1 
, Sodabeh Jahan Bakhsh * 2, Salim Farzaneh1 , Seyedeh Yalda Raeisi Sadati1 , Saeid Heydarzadeh1
, Sodabeh Jahan Bakhsh * 2, Salim Farzaneh1 , Seyedeh Yalda Raeisi Sadati1 , Saeid Heydarzadeh1
1- Department of Plant Production and Genetics, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran
2- Department of Plant Production and Genetics, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran ,jahanbakhsh@uma.ac.ir
2- Department of Plant Production and Genetics, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran ,
Abstract: (202 Views)
Salinity is one of the most important environmental stresses, the increasing spread of which reduces the growth and yield of agricultural plants, in this regard, identifying sugar beet cultivars tolerant to salinity stress to improve quantitative and qualitative yield is of particular importance. For this purpose, research was conducted to investigate the physiological characteristics of some sugar beet genotypes under salt stress in 2019. This experiment was carried out factorially in the form of randomized complete blocks with three replications in Mohaghegh Ardabili University under greenhouse conditions. The experimental factors included different genotypes of sugar beet (9 genotypes) as the first factor and salinity stress as the second factor at four levels (control and 4, 8 and 12 dS/m). The results showed that the effects of salinity stress on chlorophyll content, soluble protein, proline content, soluble sugars and the activity of antioxidant enzymes (catalase, peroxidase and polyphenol oxidase) of different sugar beet cultivars were significant. Higher levels of salinity stress (12 dS/m) caused a significant increase in soluble protein, proline content, soluble sugars and activity of catalase, peroxidase and polyphenol oxidase enzymes compared to other levels of salinity stress and the control treatment. Whereas, the highest content of chlorophyll a, b and total chlorophyll was observed in cultivars number 15 and 4 in the treatment of not applying salt stress. Among the studied genotypes, genotypes No. 6, 15 and 20 had the highest activity of antioxidant enzymes under the condition of 12 dS/m salinity stress. Therefore, at higher levels of salinity stress, resistant sugar beet cultivars prevent the reduction of photosynthetic pigment content by improving the content of compatible osmolytes and antioxidant activities through correct membrane structure.
Article number: 14
Type of Study: Research |
Subject:
Salt Stress
Received: 2023/12/2 | Accepted: 2024/02/26 | Published: 2024/06/18
Received: 2023/12/2 | Accepted: 2024/02/26 | Published: 2024/06/18
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