Differential responses to salt stress in ion dynamics, growth and seed yield of European quinoa varieties

Roman, Viviana Jaramillo; Toom, Leonardus A. den; Gamiz, Carlos Castro; Pijl, Niels van der; Visser, Richard G. F.; Loo, E.N. van; Linden, C. Gerard van der

doi:10.1016/j.envexpbot.2020.104146

Cited by 35 publications

(46 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Under the saline and marginal UAE environment, some agro-physiological traits (PH, NBP, and NPP) were decreased after salt stress while PL was unaffected at various salinity levels. A decrease in dry matter yield with increasing soil salinity levels might be due to the inhibition of water availability and hydrolysis of reserved foods and their translocation to the growing shoots [43,44]. Other factors responsible for lower dry biomass yield may include panicle length, chlorophyll concentrations, number of productive tillers, number of primary branches per panicle, and fertility percentage [45].…”

Section: Discussionmentioning

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

View full text Add to dashboard Cite

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.

show abstract

Section: Discussionmentioning

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

View full text Add to dashboard Cite

show abstract

“…Salt stress reduced the growth of quinoa plants. A detailed analysis of the impact of the salt treatment of 400 mM NaCl on the physiology and growth of these European quinoa varieties was reported by us previously (Jaramillo Roman et al 2020). In short, after seven weeks of salt treatment (11 weeks after sowing) total biomass decreased on average by 70 % compared to control conditions (0 mM NaCl) (Figure 1A).…”

Section: Growth and Biomass Allocation Under Salinitysupporting

confidence: 56%

“…As a facultative halophyte, quinoa is able to tolerate soil salinity levels that are considered severe for most crops without excessive yield penalties. At salinity levels that are close to that of seawater (the stress level applied in the experiment described here) quinoa switches to a halophytic strategy in which survival is favoured with a trade-off for growth and productivity (Jaramillo Roman et al 2020). It remains to be tested whether the biochemical remodelling of the cell wall described in this study is part of the survival strategy of quinoa, or whether these modifications will also contribute to increased salt tolerance at lower salinity levels.…”

Section: Discussionmentioning

confidence: 91%

“…Three sweet European commercial quinoa varieties were used in this study: Jessie, Pasto and selRiobamba (a line selected from Riobamba (Riobamba has still some residual heterozygosity)). The impact of salt stress on the growth and several physiological traits of these varieties was previously described (Jaramillo Roman et al 2020). The plants were grown in 3 L pots using vermiculite No.…”

Section: Experimental Conditionsmentioning

confidence: 99%

“…Quinoa is a facultative halophyte that grows and thrives under non-saline conditions, but also survives under severe saline conditions. Several physiological strategies utilized by quinoa to tolerate prolonged exposure to soil salinity have been described (Jaramillo Roman et al 2020). We describe in this chapter the changes in the chemical composition of quinoa cell walls as a consequence of salt stress, and provide insight into the remodelling of the cell wall, which might play a role in the ability of this species to survive severe salt stress.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Salt tolerance strategies of the ancient Andean crop quinoa

Roman¹

Self Cite

View full text Add to dashboard Cite

This research was conducted under the auspices of the Graduate School of Experimental Plant Sciences (EPS) Chapter 1 P a g e | 10  Switch strategy of carbon assimilation (certain halophytes switch from C3 to CAM (e.g. Portulacaria afra, Mesembryanthemum crystallinum) or C4 to CAM (e.g. Portulaca oleracea)).Considering the complexity and diversity of mechanisms that contribute to salt tolerance, breeding or engineering crops adapted to saline soils has proven to be a challenging task. In addition, investment in salt tolerance mechanisms normally come with trade-offs for crop productivity, which might make salt-tolerant varieties commercially uncompetitive (Gilliham et al. 2017;Wani et al. 2020;Yamaguchi and Blumwald 2005). Several approaches have been considered to develop agriculture in saline areas (Flowers 2004; Alqahtani et al. 2019):  Improve farming practices to prevent secondary salinization  Soil remediation to reduce the salt content in soils  Incorporate new/ alternative salt-tolerant crops  Exploit natural variation and use landraces or wild relatives of existing crops that might have improved salt tolerance to improve the salt tolerance of current cropsThis thesis explores the third option mentioned above to face the challenge of salinity: introducing quinoa (Chenopodium quinoa), a novel, globally emerging salt tolerant crop, as an alternative to grow in areas affected by salinity where other crops are failing. P a g e | 26Quinoa is a nutritious seed crop with a great potential to grow in saline soils. Here, we studied ion concentrations in quinoa tissues throughout the life cycle of the plant, and linked ion dynamics to responses in growth parameters, seed yield and efficiency of photosynthesis under salinity (0-400 mM NaCl). Ion dynamics changed from high ion exclusion (>99 %, root contents lower than root medium and low accumulation of ions in the leaves) before flowering, to a build-up of ions during seed filling. This indicates a change in strategy in maintaining the necessary gradient of water potential from the root medium to the leaves. K⁺ concentrations in leaves also increased by more than 100 % in response to prolonged severe salt stress, which may point to a role of this ion in leaf osmotic adjustment. Accumulation of ions in epidermal bladder cells did not contribute substantially to Na⁺-exclusion as it was less than 6 % of the total Na⁺ taken up in leaves. Growth under salt stress was mostly impaired by anatomical adaptations (reduced SLA), while initial light use efficiency (Fv/Fm) and NAR were not affected. The variety Pasto showed a "survival strategy" to high salinity with higher ion exclusion and a higher reduction in transpiration than the other varieties, at the expense of lower biomass and seed yield.

show abstract

Quinoa growth and yield performance under salinity stress in arid West Texas

Chaganti,

Ganjegunte

2024

Agrosystems Geosci & Env

View full text Add to dashboard Cite

Crops such as quinoa (Chenopodium quinoa Willd.) that are both salinity and drought‐tolerant and with high seed value are needed to sustain agriculture in arid Far West Texas facing dual threat of freshwater scarcity and soil salinization. However, quinoa's growth and yield performance under arid conditions of Far West Texas has not been studied previously. This study evaluated growth and yield of a salt‐tolerant quinoa genotype under greenhouse conditions using a completely randomized experimental design with irrigation water salinity as the main factor having five different levels (freshwater, 5, 10, 15, and 20 dS m−1). Plant parameters (plant height, leaf SPAD, leaf tissue carbon, and nitrogen concentrations) and seed yield were measured for two growing seasons. Soil quality (salinity and sodicity) changes were also determined for the same time. Seed yields ranged between 747 and 6065 kg ha−1 across 2 years, indicating significant effects of water salinity. However, these yields were comparable to those reported in the literature. Increasing water salinity significantly affected all growth parameters with leaf C and N decreasing by an average of 20%, whereas reductions in plant height reached a high of 60% at 20 dS m−1. Similar reductions in leaf chlorophyll content were found with increasing water salinity. Soil salinity and sodicity significantly increased over time with irrigation water salinity. Importantly, we observed that quinoa has a much higher soil salinity threshold (∼12 dS m−1) above which yields declined rapidly. Higher salt tolerance threshold of quinoa makes it an alternative economically viable crop for the Trans‐Pecos Texas region.

show abstract

Differential responses to salt stress in ion dynamics, growth and seed yield of European quinoa varieties

Cited by 35 publications

References 45 publications

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

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

Salt tolerance strategies of the ancient Andean crop quinoa

Quinoa growth and yield performance under salinity stress in arid West Texas

Contact Info

Product

Resources

About