Tolerance of Three Quinoa Cultivars (Chenopodium quinoa Willd.) to Salinity and Alkalinity Stress During Germination Stage

Stoleru, Vasile; Slabu, C.; Vitanescu, Maricel; Peres, Catalina; Cojocaru, Alexandru; Covasa, Mihaela; Mihalache, Gabriela

doi:10.3390/agronomy9060287

Cited by 20 publications

(17 citation statements)

References 37 publications

(56 reference statements)

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“…Corresponding reductions in germination varied from a high of 80% to a low of 31% relative to the control across all genotypes (Table 3). Our results concur with previous studies, which also reported significant reductions in quinoa seed germination with increasing salinity (Gómez-Pando et al, 2010;Panuccio et al, 2014;Stoleru et al, 2019). For example, Gómez-Pando et al ( 2010) found that seed germination was drastically reduced at 300-mM (∼30 dS m −1 ) NaCl concentration when 182 Peruvian accessions were tested for their salinity tolerance at germination stage.…”

Section: Percent Germination and Stisupporting

confidence: 93%

Evaluation of quinoa genotypes for their salinity tolerance at germination and seedling stages

Chaganti¹,

Ganjegunte²

2022

Agrosystems Geosci & Env

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Freshwater scarcity and salinity stress are major constraints for irrigated agriculture in the arid West Texas region. Alternative crops that are tolerant to salinity and less water-intensive are needed for long-term agricultural sustainability in this region.Quinoa (Chenopodium quinoa Willd.) is a halophytic crop with its seed having high market value and that can be a potential substitute for traditional crops. However, its salinity tolerance is a variable trait among genotypes and was shown to differ with growth stages. This study evaluated 25 quinoa genotypes that are suitable for growing in this arid region for their salinity tolerance at germination stage and classified them based on their stress tolerance index (STI). A completely randomized factorial design was used with water salinity and quinoa genotypes as two factors. Quinoa seeds were subjected to salinity stress at 1, 10, 15, 20, 25, and 30 dS m −1 , their germination determined for two weeks, and seedling growth was evaluated through biomass production. Results showed that germination decreased significantly (by 60%) across all genotypes as salinity increased, with zero germination at 30 dS m −1 . All genotypes differed significantly across salinity levels, with percent germination ranging between 37-72%. Using hierarchical cluster analysis, 23GR, 130R, 124R, and 31P were identified as highly salt-tolerant genotypes at seed germination. Seedling biomass also decreased with increasing salinity, but genotypical differences were not as pronounced as at the germination stage. We conclude that salinity tolerance at germination and seedling growth stages is indeed a variable trait among selected quinoa genotypes.

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Section: Percent Germination and Stisupporting

confidence: 93%

Evaluation of quinoa genotypes for their salinity tolerance at germination and seedling stages

Chaganti¹,

Ganjegunte²

2022

Agrosystems Geosci & Env

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“…Similar findings were observed by [9] in the groundnut. S 0 Control 0 mM NaCl recorded 87.85% Similar findings were observed by [10] in puno cultivar of Quinoa and the lowest readings were recorded in S 2 200Mm NaCl is 82.27%. The maximum germination % with interaction treatments and salinity (T×S) was recorded with T 9 S 0 -Beejamrutha100% at 0mM NaCl is 92% and also other quality parameters recorded highest in Beejamrutha 100% compared with other treatments and control.…”

Section: %supporting

confidence: 79%

Influence of Seed Invigoration with Seaweed, Panchagavya and Beejamrutha on Seed Quality Parameters of Quinoa (Chenopodium quinoa Willd.) under Salinity Condition

Kiran

Chaurasia

Shukla

et al. 2021

IJPSS

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Quinoa is a saline-tolerant crop and highly nutritious compared with rice, wheat, and oats. Quinoa cultivar EC507704 were used to check the performance of seed invigoration with organic treatments under different salinity levels current experiment was conducted in 2021 at the seed testing laboratory department of Genetics and Plant Breeding, Naini Agriculture Institute, Prayagraj (U. P.). Experimentation was carried out by using Complete Randomized Design with four replications by using top of the paper method. The salinity levels were obtained by dissolving 0mM, 100mM, and 200mM NaCl in one liter of distilled water. Filter papers were supplied with a salt solution to place the treated seeds. The treatments used in this experiment are T0 distilled water as Control, T1 and T2 Seaweed 5% and 10%, T3,T4,T5 Panchagavya 4%,6% and 10%, T6,T7,T8 and T9 Beejamrutha 25%,50%,75% and 100%. The results indicated the superiority with the interaction of treatment and salinity of T9S0 Beejamrutha 100% in 0mM NaCl shows 92% in germination percentage, 3.60cm in shoot length, 6.85cm in root length, 10.45cm in seedling length, 0.25g in dry weight, 961.32 in Seedling vigour index compared with control. The better performance of Beejamrutha increases the seed quality parameters due to the presence of beneficial microorganisms, nutrients, and growth-inducing hormones.

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“…In addition, Rosa, Hilal, Gonzalez, and Prado (2009) found that quinoa is able to maintain Ca 2+ /Na + and K + /Na + selectivity under saline stress. These evidences suggest that quinoa can be a good candidate for cropping system under soil salinization and for salinity tolerance studies (Stoleru et al, 2019).…”

Section: Introductionmentioning

confidence: 94%

Genetic variation in root development responses to salt stresses of quinoa

Nguyen

Bertero

Nguyen

2020

J Agronomy Crop Science

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Soil salinity has become a serious environmental abiotic stress limiting crop productivity and quality. The root system is the first organ sensing the changes in salinity. Root development under elevated salinity is therefore an important indicator for saline tolerance in plants. Previous studies focused on varietal differences in morphological traits of quinoa under saline stresses; however, variation in root development responses to salinity remains largely unknown. To understand the genetic variation in root development responses to salt stress of quinoa, we conducted a preliminary screening for salinity response at two salinity levels of a diverse set of 52 quinoa genotypes and microsatellite markers were used to link molecular variation to that in root development responses to salt stresses of represented genotypes. The frequency distribution of saline tolerance index showed continuous variation in the quinoa collection. Cluster analysis of salinity responses divided the 52 quinoa genotypes into six major groups. Based on these results, six genotypes representative of groups I to VI including Black quinoa, 2‐Want, Atlas, Riobamba, NL‐6 and Sayaña, respectively, were selected to evaluate root development under four saline stress levels: 0, 100, 200 and 300 mM NaCl. Contrasts in root development responses to saline stress levels were observed in the six genotypes. At 100 mM NaCl, significant differences were not observed in root length development (RLD) and root surface development (RSAD) of most genotypes except Black quinoa; a significant reduction was observed in this genotype as compared to controls. At 200 mM NaCl, significant reduction was detected in RLD and RSAD in all genotypes showing this as the best concentration to discriminate among genotypes. The strongest inhibition of root development was found for all genotypes at 300 mM NaCl as compared to lower saline levels. Among genotypes, Atlas of group III shows as a saline‐tolerant genotype confirming previous reports. Variation in root responses to salinity stresses is also discussed in relation to climate conditions of origins of the genotypes and reveal interesting guidelines for further studies exploring the mechanisms behind this aspect of saline adaptation.

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Tolerance of Three Quinoa Cultivars (Chenopodium quinoa Willd.) to Salinity and Alkalinity Stress During Germination Stage

Cited by 20 publications

References 37 publications

Evaluation of quinoa genotypes for their salinity tolerance at germination and seedling stages

Evaluation of quinoa genotypes for their salinity tolerance at germination and seedling stages

Influence of Seed Invigoration with Seaweed, Panchagavya and Beejamrutha on Seed Quality Parameters of Quinoa (Chenopodium quinoa Willd.) under Salinity Condition

Genetic variation in root development responses to salt stresses of quinoa

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