Evaluation of Wheat genotypes on the basis of physiological indices under salt stress

Salinity is a major obstacle to wheat production worldwide. Salt-affected soils could be used by improving salt-tolerant genotypes depending upon the genetic variation and salt stress response of adapted and donor wheat germplasm. We used a comprehensive set of morpho-physiological and biochemical parameters and simple sequence repeat (SSR) marker technique with multivariate analysis to accurately demonstrate the phenotypic and genetic variation of 18 wheat genotypes under salinity stress. All genotypes were evaluated without NaCl as a control and with 150 mM NaCl, until the onset of symptoms of death in the sensitive plant (after 43 days of salinity treatment). The results showed that the relative change of the genetic variation was high for all parameters, heritability (>60%), and genetic gain (>20%). Stepwise regression analysis, noting the importance of the root dry matter, relative turgidity, and their respective contributions to the shoot dry matter, indicated their relevance in improving and evaluating the salt-tolerant genotypes of breeding programs. The relative change of the genotypes in terms of the relative turgidity and shoot dry matter during salt stress was verified using clustering methods. For cluster analysis, the genotypes were classified into three groups: tolerant, intermediate, and sensitive, representing five, six, and seven genotypes, respectively. The morphological and genetic distances were significantly correlated based on the Mantel test. Of the 23 SSR markers that showed polymorphism, 17 were associated with almost all examined parameters. Therefore, based on the observed molecular marker-phenotypic trait association, the markers were highly useful in detecting tolerant and sensitive genotypes. Thus, it considers a helpful tool for salt tolerance through marker-assisted selection.

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Response of wheat genotypes to foliar spray of ZnO and Fe2O3nanoparticles under salt stress

Journal of Plant Nutrition ◽

10.1080/01904167.2016.1262418 ◽

2017 ◽

Vol 40 (10) ◽

pp. 1376-1385 ◽

Cited By ~ 16

Author(s):

Alireza Fathi ◽

Morteza Zahedi ◽

Shahram Torabian ◽

Amirhossein Khoshgoftar

Keyword(s):

Salt Stress ◽

Foliar Spray ◽

Wheat Genotypes

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Changes in antioxidant activity in sub-cellular fractions of tolerant and susceptible wheat genotypes in response to long term salt stress

Plant Science ◽

10.1016/s0168-9452(02)00037-7 ◽

2002 ◽

Vol 162 (6) ◽

pp. 897-904 ◽

Cited By ~ 277

Author(s):

R.K Sairam ◽

G.C Srivastava

Keyword(s):

Antioxidant Activity ◽

Salt Stress ◽

Wheat Genotypes

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Screening of Wheat (Triticum aestivum L.) Genotypes for Salt Tolerance on the Basis of Physiochemical Characteristics and Bio-Physiological Parameters and Indices

Revista de Chimie ◽

10.37358/rc.21.3.8438 ◽

2021 ◽

Vol 72 (3) ◽

pp. 71-80

Author(s):

Farzana Shaheen ◽

Zafar Iqbal Khan ◽

Tasneem Ahmad ◽

Muhammad Yaseen Ashraf ◽

Kafeel Ahmed ◽

...

Keyword(s):

Cluster Analysis ◽

Salt Tolerance ◽

Stress Tolerance ◽

Dry Weight ◽

Wheat Crop ◽

Tolerance Index ◽

Multivariate Techniques ◽

Stress Indices ◽

Wheat Genotypes ◽

Physiological Indices

Salt stress is a major threat for growth and development of wheat crop. Screening technique for salinity tolerance is an effective tool to identify tolerant cultivar and high yielding wheat genotypes. Present study was carried out to screen twenty wheat genotypes under laboratory terms utilizing various growth and physiological indices like plant fresh weight stress indices (PFSI), plant height stress tolerance index (PHSI), shoot length stress tolerance index (SLSI), germination stress tolerance index (GSI), plant dry weight stress indices (PDSI), root length stress tolerance index (RLSI), relative water content (RWC). Multivariate techniques like cluster analysis and correlation were used to analyze the variance between wheat genotypes. The correlations analysis indicated significant among different physiological indices like GSI, SLSI, RLSI, PFSI, PDSI and RWC. On the basis of cluster analysis 20 wheat genotypes were classified into three clusters: first cluster included (The genotype WL-711 was the premier scorer followed by Nifa Bathoor, ARRI-II and Millat-11) presents sufficient salt tolerating degree, on the other hand, cluster-2 is comprised of wheat genotypes (Inqilab-91, NIAB-09, Punjab-96, Sehar-2006, Tatara, AS-2002, SA-75, Lasani-09, FSD-08 and Galaxy-13) with medium level of salt tolerance and cluster-3 included genotypes (LU-26-S, Fakhar e Sarhad, Bakhtawar, Punjab-11, Barsat and Kohistan-97) did not perform upto the mark and have lower level of salt tolerance. Correlation analysis among different screening techniques indicated that physiological indices exhibited highly significant and positive correlations among GSI, PHSI, SLSI, PDSI, PFSI, and RWC while non-significant correlation existed among PDSI and RLSI. The correlation between PFSI and RWC was significant. Significant correlations between cluster analysis and different indices also proved that salt tolerant wheat genotypes screened.

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The Effect of Biological Pre-Treatments on Germination and Physiological Indices of Pumpkin (Cucurbita pepo var. Styriaca) Seedling under Salt Stress

Iranian Journal of Seed Research ◽

10.52547/yujs.7.2.33 ◽

2021 ◽

Vol 7 (2) ◽

pp. 33-53

Author(s):

Seyyed esmaeil Mousavi ◽

Heshmat Omidi ◽

Ayatollah Saeedizadeh ◽

Mehdi Aghighishahverdi ◽

◽

...

Keyword(s):

Salt Stress ◽

Cucurbita Pepo ◽

Physiological Indices

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Water and Salt Stress Metabolomics for Wheat Genotypes of India

Cereal Research Communications ◽

10.1556/0806.47.2019.36 ◽

2019 ◽

Vol 47 (4) ◽

pp. 615-625 ◽

Cited By ~ 1

Author(s):

G. Kaur ◽

B. Asthir

Keyword(s):

Salt Stress ◽

Wheat Genotypes

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Salt stress reveals differential physiological, biochemical and molecular responses in T. monococcum and T. durum wheat genotypes

Physiology and Molecular Biology of Plants ◽

10.1007/s12298-017-0457-4 ◽

2017 ◽

Vol 23 (3) ◽

pp. 517-528 ◽

Cited By ~ 10

Author(s):

Sana Tounsi ◽

Kaouthar Feki ◽

Dorsaf Hmidi ◽

Khaled Masmoudi ◽

Faiçal Brini

Keyword(s):

Salt Stress ◽

Durum Wheat ◽

Molecular Responses ◽

Wheat Genotypes

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Identification and Characterization of Wheat Germplasm for Salt Tolerance

Plants ◽

10.3390/plants10020268 ◽

2021 ◽

Vol 10 (2) ◽

pp. 268

Author(s):

Xiaoyan Quan ◽

Xiaoli Liang ◽

Hongmei Li ◽

Chunjuan Xie ◽

Wenxing He ◽

...

Keyword(s):

Salt Stress ◽

Salt Tolerance ◽

Redox Homeostasis ◽

Soluble Sugars ◽

Dry Weight ◽

Limiting Factors ◽

Salt Tolerant ◽

Fresh Weight ◽

Shoot Height ◽

Wheat Genotypes

Salinity is one of the limiting factors of wheat production worldwide. A total of 334 internationally derived wheat genotypes were employed to identify new germplasm resources for salt tolerance breeding. Salt stress caused 39, 49, 58, 55, 21 and 39% reductions in shoot dry weight (SDW), root dry weight (RDW), shoot fresh weight (SFW), root fresh weight (RFW), shoot height (SH) and root length (RL) of wheat, respectively, compared with the control condition at the seedling stage. The wheat genotypes showed a wide genetic and tissue diversity for the determined characteristics in response to salt stress. Finally, 12 wheat genotypes were identified as salt-tolerant through a combination of one-factor (more emphasis on the biomass yield) and multifactor analysis. In general, greater accumulation of osmotic substances, efficient use of soluble sugars, lower Na+/K+ and a higher-efficiency antioxidative system contribute to better growth in the tolerant genotypes under salt stress. In other words, the tolerant genotypes are capable of maintaining stable osmotic potential and ion and redox homeostasis and providing more energy and materials for root growth. The identified genotypes with higher salt tolerance could be useful for developing new salt-tolerant wheat cultivars as well as in further studies to underline the genetic mechanisms of salt tolerance in wheat.

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Effect of Sodium Silicate and Salicylic Acid on Sodium and Potassium Ratio in Wheat (Triticum aestivum L.) Grown Under Salt Stress

10.21203/rs.3.rs-680832/v1 ◽

2021 ◽

Author(s):

Ayesha Mushtaq ◽

Nazish Sabir ◽

Tasneem Kousar ◽

Sabeena Rizwan ◽

Uzma Jabeen ◽

...

Keyword(s):

Salicylic Acid ◽

Salt Stress ◽

Sodium Silicate ◽

Growth Parameters ◽

Sodium Concentration ◽

Triticum Aestivum L ◽

Growth And Yield ◽

Wheat Varieties ◽

Wheat Genotypes ◽

Normal Environment

Abstract Purpose Salinity pose severe threat to cultivation as it drastically affects the plant sustainability and yield. The intended aim of current consensus is to assess effects of sodium silicate and salicylic acid on wheat genotypes (slat tolerant and salt sensitive) grown under salt. Methods This experiment was designed to check the effect of silicon on wheat varieties, so four different wheat genotypes named as (Umeed, Rasco, Zarghoon and Shahkaar) were grown in hydroponics under saline and normal environment. Sodium silicate and salicylic acid were applied on all varieties to determine the slat tolerance ability. Plants were harvested at maturity and different physical and chemical aspects were recorded. Results To assess the salt stress on growth and yield of wheat genotypes. Wheat grown in saline conditions with sodium silicate supplementation showed improvement in all growth parameters as compared to the plants grown under salt stress without silicon supplementation. Higher contents of potassium were observed in plants grown under salt stress with silicon supplementation however, potassium concentration was found less in salicylic acid treatment and control under salt stress. Sodium concentration was found higher under salt stress but sodium silicate application reduced Na+ uptake under salt stress. Significance increase in K+ : Na+ ratio in roots enhance the translocation which in turn elevates salt tolerance ability. Among wheat varieties potassium uptake was quite high in Umeed and Rasco as compared to Zarghoon and Shahkar. Conclusion Based on current results it can be deduced that application of sodium silicate on different wheat varieties mitigated Na+ toxicity by elevating K+: Na+ ratio and net translocation rate in salt stressed plants.

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