Volume 14, Issue 66 (vol. 14, no. 66 2025)
2025, 14(66): 211-226 |
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Faraei P, Jahanbakhsh Godehkahriz S, Farzaneh S, Raeisi Sadati S Y. Evaluation of some physiological parameters of ten promising genotypes of sugar beet under salinity stress. Plant Process and Function 2025; 14 (66) : 13
URL: http://jispp.iut.ac.ir/article-1-2143-en.html
URL: http://jispp.iut.ac.ir/article-1-2143-en.html
Pouria Faraei1 
, Sodabeh Jahanbakhsh Godehkahriz * 2, Salim Farzaneh3 , Seyedeh Yalda Raeisi Sadati4
, Sodabeh Jahanbakhsh Godehkahriz * 2, Salim Farzaneh3 , Seyedeh Yalda Raeisi Sadati4
1- Department of Genetics and Plant Breeding, Faculty of Agriculture & Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran
2- Department of Production Engineering and Plant Genetics, Faculty of Agriculture & Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran ,jahanbakhsh@uma.ac.ir
3- Department of Production Engineering and Plant Genetics, Faculty of Agriculture & Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran
4- Department of Plant Breeding-Molecular Genetics, Faculty of Agriculture & Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran
2- Department of Production Engineering and Plant Genetics, Faculty of Agriculture & Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran ,
3- Department of Production Engineering and Plant Genetics, Faculty of Agriculture & Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran
4- Department of Plant Breeding-Molecular Genetics, Faculty of Agriculture & Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran
Abstract: (31 Views)
Soil salinity is one of the limitations of sustainable production in arid and semi-arid areas, and about 20% of agricultural land in the world is under salinity stress, therefore, knowing the mechanisms of salt stress tolerance in promising sugar beet genotypes will help to introduce superior genotypes for cultivation in areas that are exposed to this stress. In order to investigate the effect of salinity stress on some physiological indicators of sugar beet genotypes, this research was carried out in a factorial manner in the form of a randomized complete block design with three replications in the greenhouse of the Agricultural Faculty University of Mohaghegh Ardabili in 2021. The test factors included the first factor of sugar beet genotypes (ten promising genotypes) and the second factor of salinity stress at four levels (control, 4, 8, and 12 dS/m). The required amount of salt (NaCl) for each salinity level was dissolved in water and added to the soil at the beginning of the experiment. The findings showed that among the studied genotypes, salinity stress decreased the concentration of root fresh weight, chlorophyll a, chlorophyll b and increased the concentration of proline (except for genotype number 5), malondialdehyde content and total soluble protein (except for genotype number 10) in leaves and roots. The studied genotypes of sugar beet under salinity stress can prevent the occurrence of oxidative stress by increasing the activity of catalase, peroxidase and polyphenol oxidase enzymes. In general, the studied genotypes have been influenced by salinity in different ways. Genotypes No. 5 and 8 had a significant decrease in the activity of leaf catalase enzyme and polyphenol oxidase enzyme, which indicates the use of their different mechanisms to deal with toxicity caused by salinity and that these genotypes are more tolerant to stress.
Article number: 13
Type of Study: Research |
Subject:
Salt Stress
Received: 2024/11/18 | Accepted: 2025/01/15 | Published: 2025/06/22
Received: 2024/11/18 | Accepted: 2025/01/15 | Published: 2025/06/22
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