Comparative effect of NaCl and seawater on germination of quinoa seed (Chenopodium quinoa willd)

Brakez, Meryem; Harrouni, M. C.; Tachbibi, Naïma; Daoud, Salma

doi:10.9755/ejfa.v26i12.19118

Cited by 10 publications

(5 citation statements)

References 19 publications

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“…quinoa ; It was previously found that C . quinoa seeds could germinate and start growing under relatively high salinity in 200 mM NaCl and 40% seawater [ 48 ]. Salinity influences seed germination by imposing osmotic stress, which limits water uptake by seeds, resulting in insufficient moisture to start the internal biochemical processes [ 49 ].…”

Section: Discussionmentioning

confidence: 99%

Germination ecology of Chenopodium album L. and implications for weed management

Tang

Guo²,

Yin³

et al. 2022

PLoS ONE

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Chenopodium album L. is a troublesome annual species in various cropping systems, and a sound knowledge of the ecological response of C. album germination to environmental factors would suggest suitable management strategies for inhibiting its spread. Preliminary laboratory-based research was conducted to investigate germination and emergence requirements of C. album under various environmental conditions (e.g., photoperiods, constant temperature, salinity, moisture, soil pH, burial depth, and oat crop residue). Results showed C. album seeds were found to be photoblastic, with only 13% germination in darkness. The maximum germination (94%) of C. album occurred at an optimal temperature of 25°C, and the depressive effect of other temperatures on germination was more severe at lower rather than higher temperatures. Seed germination was suitably tolerant of salinity and osmotic potential, with germination observed at 200 mM NaCl (37.0%) and -0.8 MPa (20%), respectively. Germination was relatively uniform (88–92%) at pH levels ranging from 4 to 10. The maximum germination of C. album was observed on the soil surface, with no or rare emergence of seeds at a burial depth of 2 cm or under 7000 kg ha-1 oat straw cover, respectively. Information provided by this study will help to develop more sustainable and effective integrated weed management strategies for the control of C. album, including (i) a shallow-tillage procedures to bury weed seeds in conventional-tillage systems and (ii) oat residue retention or coverage on the soil surface in no-tillage systems.

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Section: Discussionmentioning

confidence: 99%

Germination ecology of Chenopodium album L. and implications for weed management

Tang

Guo²,

Yin³

et al. 2022

PLoS ONE

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“…Three cultivars of quinoa (Titicaca, Puno, Vikinga) originating from Denmark were chosen to be studied for their ability to germinate under the stress of two salts known for causing salinity in soils (NaCl and Na 2 SO 4 ) and one salt responsible for alkalinity-Na 2 CO 3 . Most of the studies are focusing on the tolerance of quinoa, especially of Titicaca cultivar, to NaCl [6,10,12,13,26], one of the main factors for soil salinity [27], but little is known about the ability of quinoa seeds to germinate under Na 2 SO 4 or Na 2 CO 3 stresses [28]. Knowing the differences in quinoa's tolerance to chloride and sulfate salinity can bring important information for a more precise use of this crop in lands affected by soil salinity.…”

Section: Salinity and Alkalinity Effect On The Germination Of The Seedsmentioning

confidence: 99%

“…No differences were observed between the proline content of the seeds regardless of the concentrations used and the cultivar (Table 1). Usually, the salt induced inhibition of seed germination can be attributed to osmotic stress as a result of the decreasing rate of water uptake, or to ion toxicity as a consequence of the excessive intake of ions such as Na + which may change certain enzymatic or hormonal activities inside the seed [12,26,40,41]. Instead, alkaline stress, even if it has the same ion (Na + ) as saline stress factor, the added influence of high pH stress enhance the osmotic and ionic toxicity on seeds, but also can destroy the embryo [9].…”

Section: Tolerance Of Quinoa Cultivars To the Salt And Alkali Stressmentioning

confidence: 99%

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

et al. 2019

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Salinity and alkalinity are two of the main causes for productivity losses in agriculture. Quinoa represents a better alternative for global food products such as rice and wheat flour due to its high nutritional value and abiotic stress tolerance. Three cultivars of quinoa seeds (Titicaca, Puno and Vikinga) originating from Denmark were used in the experiments. The seeds were germinated under the action of three different salts (NaCl, Na2SO4, Na2CO3) at 0–300 mM for five days and the germination rate was calculated. Biometric measurements (radicle and hypocotyls lengths) andbiochemical determinations (proline) were performed in order to quantify the tolerance and the effects of salt and alkali stresses on the three quinoa cultivars. The germination rates showed that all cultivars were affected by the presence of salts, especially at 300 mM. The most sensitive cultivar to salts was Titicaca cultivar which evinced the lowest germination rate, regardless of the salt and the concentration used. On the other hand, Puno and Vikinga cultivars showed the best tolerance to the saline and alkaline stresses. Among the salts used, Na2CO3 had the most detrimental effects on the germination of quinoa seeds inhibiting the germination by ~50% starting with 50 mM. More affected was the growth of hypocotyls in the presence of this salt, being completely inhibited for the seeds of the Puno and Titicaca cultivars. Vikinga cultivar was the only one able to grow hypocotyls at 50 and 100 mM Na2CO3. Also, this cultivar had a high adaptability to NaCl stress when significant differences were observed for the germination rates at 200 and 300 mM as compared to 0 mM NaCl, due to the proline production whose content was significantly greater than that of the untreated seeds. In conclusion, the tolerance of the three quinoa cultivars to saline and alkali stress varied with the salt type, salt concentration and tested cultivar, with the Vikinga and Puno cultivars showing the best potential for growing under saline conditions.

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“…Most of the previously referred studies have been carried out in quinoa germination and seedling growth responses under the control growth chambers. It is important to understand that germination and early seedling establishment stage is critical in the life cycle of plants, and many colleagues have documented these phenomena [ 34 , 35 ]. However, yield response factors of different quinoa genotypes to saline and marginal soil environment and their salinity tolerance mechanisms that may regulate seedling growth, yield and grain quality attributes need to be evaluated under marginal and nutrient poor sandy soils.…”

Section: Introductionmentioning

confidence: 99%

Agro-Morphological, Yield and Quality Traits and Interrelationship with Yield Stability in Quinoa (Chenopodium quinoa Willd.) Genotypes under Saline Marginal Environment

Hussain

Muscolo

Ahmed

et al. 2020

Plants

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Quinoa (Chenopodium quinoa Willd.) is a halophytic crop that shows resistance to multiple abiotic stresses, including salinity. In this study we investigated the salinity tolerance mechanisms of six contrasting quinoa cultivars belonging to the coastal region of Chile using agro-physiological parameters (plant height (PH), number of branches/plant (BN), number of panicles/plant (PN), panicle length (PL), biochemical traits (leaf C%, leaf N%, grain protein contents); harvest index and yield (seed yield and plant dry biomass (PDM) under three salinity levels (0, 10, and 20 d Sm−1 NaCl). The yield stability was evaluated through comparision of seed yield characteristics [(static environmental variance (S2) and dynamic Wricke’s ecovalence (W2)]. Results showed that significant variations existed in agro-morphological and yield attributes. With increasing salinity levels, yield contributing parameters (number of panicles and panicle length) decreased. Salt stress reduced the leaf carbon and nitrogen contents. Genotypes Q21, and AMES13761 showed higher seed yield (2.30 t ha−1), more productivity and stability at various salinities as compared to the other genotypes. Salinity reduced seed yield to 44.48% and 60% at lower (10 dS m−1) and higher salinity (20 dS m−1), respectively. Grain protein content was highest in NSL106398 and lowest in Q29 when treated with saline water. Seed yield was positively correlated with PH, TB, HI, and C%. Significant and negative correlations were observed between N%, protein contents and seed yield. PH showed significant positive correlation with APL, HI, C% and C:N ratio. HI displayed positive correlations with C%, N% and protein content., All measured plant traits, except for C:N ratio, responded to salt in a genotype-specific way. Our results indicate that the genotypes (Q21 and AMES13761) proved their suitability under sandy desert soils of Dubai, UAE as they exhibited higher seed yield while NSL106398 showed an higher seed protein content. The present research highlights the need to preserve quinoa biodiversity for a better seedling establishment, survival and stable yield in the sandy desertic UAE environment.

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Comparative effect of NaCl and seawater on germination of quinoa seed (Chenopodium quinoa willd)

Cited by 10 publications

References 19 publications

Germination ecology of Chenopodium album L. and implications for weed management

Germination ecology of Chenopodium album L. and implications for weed management

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

Agro-Morphological, Yield and Quality Traits and Interrelationship with Yield Stability in Quinoa (Chenopodium quinoa Willd.) Genotypes under Saline Marginal Environment

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