Determining the source and mechanism of river salinity: An integrated regional study

Zaeri, Ali; Mohammadi, Zargham; Rezanezhad, Fereidoun

doi:10.1016/j.ejrh.2023.101411

Cited by 2 publications

(2 citation statements)

References 52 publications

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“…In other words, since the mode of occurrences of salinity in a particular agroclimatic region is natural and/or anthropogenic, the time (growth stages) and duration of exposure and intensity of salinity can vary which can influence the multi-traits responses of genotypes with diverse genetic backgrounds result in changes in the magnitude of final grain yield. The regions in or near saline areas (salt lakes, salt pans, salt marshes, and salt flats) with considerably high soil salinity levels are counted as natural modes of occurrences of salinity and anthropogenic mode is the exposure of salinity to soil through poor quality irrigation water due to the intrusion of seawater and contamination from effluents from industrial wastewater ( Zaeri et al., 2023 ). As the salient findings of the current study are not in alignment with the proposed hypothesis leads to the recommendation of deciphering the genotypic responses more precisely and specifically at each sensitive growth stage with an emphasis on the duration of exposure and intensity of salinity.…”

Section: Discussionmentioning

confidence: 99%

Response of winter wheat genotypes to salinity stress under controlled environments

Ehtaiwesh,

Sunoj,

Djanaguiraman

et al. 2024

Front. Plant Sci.

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This study was conducted in controlled environmental conditions to systematically evaluate multi-traits responses of winter wheat (Triticum aestivum L.) genotypes to different salinity levels. Responses were assessed at the germination to early seedling stage (Experiment 1). Seeds of different genotypes (n=292) were subjected to three salinity levels (0 [control], 60, and 120 mM NaCl). Principal Component Analysis (PCA) revealed that among studied traits seedling vigor index (SVI) contributed more towards the diverse response of genotypes to salinity stress. Based on SVI, eight contrasting genotypes assumed to be tolerant (Gage, Guymon, MTS0531, and Tascosa) and susceptible (CO04W320, Carson, TX04M410211) were selected for further physio-biochemical evaluation at the booting stage (Experiment 2) and to monitor grain yield. Higher level of salinity (120 mM NaCl) exposure at the booting stage increased thylakoid membrane damage, lipid peroxidation, sugars, proline, and protein while decreasing photosynthesis, chlorophyll index, starch, and grain yield. Based on grain yield, the assumed magnitude of the genotypic response shown in Experiment 1 was not analogous in Experiment 2. This indicates the necessity of individual screening of genotypes at different sensitive growth stages for identifying true salinity-tolerant and susceptible genotypes at a particular growth stage. However, based on higher grain yield and its least percentage reduction under higher salinity, Guymon and TX04M410211 were identified as tolerant, and Gage and CO04W320 as susceptible at the booting stage, and their biparental population can be used to identify genomic regions for booting stage-specific salinity response.

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Section: Discussionmentioning

confidence: 99%

Response of winter wheat genotypes to salinity stress under controlled environments

Ehtaiwesh,

Sunoj,

Djanaguiraman

et al. 2024

Front. Plant Sci.

View full text Add to dashboard Cite

show abstract

“…In other words, since the mode of occurrences of salinity in a particular agroclimatic region is natural and/or anthropogenic, the time (growth stages) and duration of exposure and intensity of salinity can vary which can influence the multi-traits responses of genotypes with diverse genetic backgrounds result in changes in the magnitude of final grain yield. The regions in or near saline areas (salt lakes, salt pans, salt marshes, and salt flats) with considerably high soil salinity levels are counted as natural modes of occurrences of salinity and anthropogenic mode is the exposure of salinity to soil through poor quality irrigation water due to the intrusion of seawater and contamination from effluents from industrial wastewater (Zaeri et al, 2023). As the salient findings of the current study are not in alignment with the proposed hypothesis leads to the recommendation of deciphering the genotypic responses more precisely and specifically at each sensitive growth stage with an emphasis on the duration of exposure and intensity of salinity.…”

Section: Discussionmentioning

confidence: 99%

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Determining the source and mechanism of river salinity: An integrated regional study

Cited by 2 publications

References 52 publications

Response of winter wheat genotypes to salinity stress under controlled environments

Response of winter wheat genotypes to salinity stress under controlled environments

Table_2.docx

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