Exploring the Potential of Quinoa Accessions for Salt Tolerance in Soilless Culture

Saleem, Muhammad Aamir; Basra, Shahzad Maqsood Ahmed; Afzal, Irfan; Rehman, Hafeez ur; Iqbal, Shahid; Saddiq, Muhammad Sohail; Naz, Safina

doi:10.17957/ijab/15.0267

Cited by 12 publications

(6 citation statements)

References 35 publications

(43 reference statements)

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“…The accumulation of compatible solutes, such as proline and total phenolics, is associated with salt tolerance in quinoa [51,59,125,131,132,158,159]. However, Ismail et al, (2016) showed that proline may not play a major role in either osmotic adjustment or in the tissue tolerance mechanism [160].…”

Section: Salinitymentioning

confidence: 99%

Quinoa Abiotic Stress Responses: A Review

Hinojosa

González

Barrios-Masias

et al. 2018

Plants

207

169

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Quinoa (Chenopodium quinoa Willd.) is a genetically diverse Andean crop that has earned special attention worldwide due to its nutritional and health benefits and its ability to adapt to contrasting environments, including nutrient-poor and saline soils and drought stressed marginal agroecosystems. Drought and salinity are the abiotic stresses most studied in quinoa; however, studies of other important stress factors, such as heat, cold, heavy metals, and UV-B light irradiance, are severely limited. In the last few decades, the incidence of abiotic stress has been accentuated by the increase in unpredictable weather patterns. Furthermore, stresses habitually occur as combinations of two or more. The goals of this review are to: (1) provide an in-depth description of the existing knowledge of quinoa’s tolerance to different abiotic stressors; (2) summarize quinoa’s physiological responses to these stressors; and (3) describe novel advances in molecular tools that can aid our understanding of the mechanisms underlying quinoa’s abiotic stress tolerance.

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Section: Salinitymentioning

confidence: 99%

Quinoa Abiotic Stress Responses: A Review

Hinojosa

González

Barrios-Masias

et al. 2018

Plants

207

169

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“…Quinoa has been identified as a facultative halophyte with better salt tolerance [47] and a high variability in salinity tolerance among quinoa genotypes has been reported [48][49][50]. Saleem et al [51] investigated the salt tolerance behavior of various quinoa lines grown hydroponically at 100 mM NaCl salinity level and found that Q7 and Q9 lines had better chlorophyll content index, free proline, ascorbic acid, and carotenoids contents but gaseous exchange traits decreased in Q7 plants under saline environment. In another study, Iqbal et al [34] found an improvement in water relations, leaf photosynthetic rate, K + contents in leaf, proline, phenolics, morphological and yield related attributes and ultimately increased grain yield at 10 dS m −1 .…”

Section: Abiotic Stressesmentioning

confidence: 99%

Trends and Limits for Quinoa Production and Promotion in Pakistan

Afzal

Basra

Rehman

et al. 2022

Plants

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Quinoa is known as a super food due to its extraordinary nutritional qualities and has the potential to ensure future global food and nutritional security. As a model plant with halophytic behavior, quinoa has potential to meet the challenges of climate change and salinization due to its capabilities for survival in harsh climatic conditions. The quinoa crop has received worldwide attention due to its adoption and production expanded in countries out of the native Andean region. Quinoa was introduced to Pakistan in 2009 and it is still a new crop in Pakistan. The first quinoa variety was registered in 2019, then afterward, its cultivation started on a larger scale. Weed pressure, terminal heat stress, stem lodging, bold grain size, and an unstructured market are the major challenges in the production and promotion of the crop. The potential of superior features of quinoa has not been fully explored and utilized. Hence, there is a need to acquire more diverse quinoa germplasm and to establish a strong breeding program to develop new lines with higher productivity and improved crop features for the Pakistan market. Mechanized production, processing practices, and a structured market are needed for further scaling of quinoa production in Pakistan. To achieve these objectives, there is a dire need to create an enabling environment for quinoa production and promotion through the involvement of policymakers, research institutions, farmers associations, and the private sector.

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“…Quinoa possesses several defenses against high salt concentrations, including enhanced tolerance to reactive oxygen species (ROS), effective regulation of Na + storage in leaf vacuoles, and efficient xylem Na + loading [14]. The accumulation of appropriate solutes, such as proline and total phenolics, is also associated with salt tolerance in quinoa [15]. Moreover, antioxidant enzyme activities in quinoa were shown to be influenced by the extent of salinity.…”

Section: Introductionmentioning

confidence: 99%

The Impact of Greenhouse and Field Growth Conditions on Chenopodium quinoa Willd Accessions’ Response to Salt Stress: A Comparative Approach

Slimani,

Arraouadi,

Hajlaoui

et al. 2023

Agronomy

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Quinoa’s exceptional capacity to tolerate high salt levels presents a promising solution to the agricultural challenges posed by salt stress. This study aimed to explore salt stress effects on three quinoa accessions (18 GR, R-132, and DE-1) and to compare the influence of greenhouse and field growing conditions on their salinity tolerance. The plants were irrigated by 50, 100, 150, and 200 mM NaCl concentrations. The results showed that quinoa plants’ response to morphological, physiological, biochemical, and enzymatic parameters was influenced by NaCl concentration, accession, growing conditions, and their interactions. As salinity irrigation increased, aerial part length and leaf area decreased significantly (p < 0.05) for all studied accessions, correlating with plant photosynthetic parameters. Greenhouse conditions promote faster and more vigorous growth with a larger leaf area compared to field cultivation. Furthermore, at 200 mM concentration, the DE-1 accession displayed greater photosynthetic activity, recording values of 195.66 ± 3.56 and 120 ± 1.13 µmol·m−2·s−1 for greenhouse and open field conditions, respectively. NaCl stimulated MDA and H2O2 in both conditions for all accessions, and the DE-1 accession displayed the lowest levels. Proteins, sugars, proline, peroxidase, ascorbate peroxidase, and catalase were stimulated by salt stress, except in the R-132 accession. Field cultivation resulted in a more severe salinity response. Greenhouse conditions may enhance quinoa’s salt tolerance due to the less demanding growth conditions. DE-1 exhibited the highest salt tolerance, while R-132 showed the lowest. This study sets the stage for further research into the genetic basis of salt tolerance in various quinoa accessions, optimizing growth in salty regions through farming practices, and confirming the obtained results in real-world conditions for sustainable agriculture.

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Exploring the Potential of Quinoa Accessions for Salt Tolerance in Soilless Culture

Cited by 12 publications

References 35 publications

Quinoa Abiotic Stress Responses: A Review

Quinoa Abiotic Stress Responses: A Review

Trends and Limits for Quinoa Production and Promotion in Pakistan

The Impact of Greenhouse and Field Growth Conditions on Chenopodium quinoa Willd Accessions’ Response to Salt Stress: A Comparative Approach

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