Performance of Hydroponically Cultivated Geranium and Common Verbena under Salinity and High Electrical Conductivity Levels

Chrysargyris, Antonios; Petropoulos, Spyridon Α.; Prvulović, Dejan; Tzortzakis, Nikolaos

doi:10.3390/agronomy11061237

Cited by 10 publications

(5 citation statements)

References 62 publications

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“…Similar behavior has been reported for other plant species such as Cynara scolymus L. [ 49 ], and Verbena officinallis L. [ 50 ]. A concentration of 100 mM NaCl combined with the use of Ascophyllum nodosum led to an increased flavonoid concentration in Vigna radiata L. [ 51 ], while 150 mM had the same stimulating effect for Trigonella foenum-graecum L. [ 52 ], confirming the results presented in this study.…”

Section: Discussionsupporting

confidence: 85%

Salinity Stress Influences the Main Biochemical Parameters of Nepeta racemosa Lam.

Lungoci

Motrescu

Filipov

et al. 2023

Plants

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In this work, the effects of salt stress on Nepeta racemosa Lam. were studied to analyze the possibility of using it as a potential culture for salinity-affected soils. A total of nine concentrations of salts—NaCl (18, 39, and 60 mg/100 g soil), Na2SO4 (50, 85, and 120 mg/100 g soil), and a mixture (9 g NaCl + 25 g Na2SO4, 19 g NaCl + 43 g Na2SO4, and 30 g NaCl + 60 g Na2SO4/100 g soil)—simulated real salinity conditions. Environmental electron microscopy offered information about the size and distribution of glandular trichomes, which are very important structures that contain bioactive compounds. The chlorophyll pigments, polyphenols, flavonoids, and antioxidant activity were determined based on spectrophotometric protocols. The results have shown a different impact of salinity depending on the salt type, with an increase in bioactive compound concentrations in some cases. The highest polyphenol concentrations were obtained for Na2SO4 variants (47.05 and 46.48 mg GA/g dw for the highest salt concentration in the first and second year, respectively), while the highest flavonoid content was found for the salt mixtures (42.77 and 39.89 mg QE/g dw for the highest concentrations of salt in the first and, respectively, the second year), approximately 100% higher than control. From the Pearson analysis, strong correlations were found between chlorophyll pigments (up to 0.93), antioxidant activity and yield for the first harvest (up to 0.38), and antioxidant activity and flavonoid content for the second harvest (up to 0.95). The results indicate the possibility of growing the studied plants in salt-stress soils, obtaining higher concentrations of bioactive compounds.

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Section: Discussionsupporting

confidence: 85%

Salinity Stress Influences the Main Biochemical Parameters of Nepeta racemosa Lam.

Lungoci

Motrescu

Filipov

et al. 2023

Plants

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“…When studying cumulative water consumption in hydroponic coriander using brackish water, [9] observed reductions of 5.26 and 5.85% per unit increment in the ECw for the periods of 1-20 and 1-24 DAT, respectively. Our results reveal similar conclusions with different species, indicating that the higher the electrical conductivity of the nutrient solution in hydroponic systems, the lower the total nutrient uptake by plants due to the reduction in the osmotic potential of the nutrient solution, delaying the transport of water from roots to fruits and leaves, with negative effects on expansion, growth, and production [40].…”

Section: Water Consumption Of Chives As a Function Of Different Water...supporting

confidence: 85%

“…Even under hydroponic conditions in which water and nutrients are supplied in a form that is readily assimilable by the plants, the different electrical conductivities of the nutrient solution tend to reduce water and nutrient uptake and productivity [8,26,40]. This result may be less evident when the species is less susceptible to salt stress and when subjected to acclimation with hydrogen peroxide [6,8].…”

Section: Water Consumption Of Chives As a Function Of Different Water...mentioning

confidence: 99%

Effect of Electrical Conductivity Levels and Hydrogen Peroxide Priming on Nutrient Solution Uptake by Chives in a Hydroponic System

et al. 2023

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The use of water of high electrical conductivity has become common in hydroponic systems, especially in regions with water scarcity. However, the use of inferior-quality water can affect crop yields. In this scenario, some studies have tested the use of chemical conditioning agents such as hydrogen peroxide to minimize the negative effects of stress on plants. From this perspective, this study aimed to evaluate the action of priming with hydrogen peroxide as a salt stress attenuator on the nutrient solution uptake and productivity of chives in a hydroponic system. The study was conducted in a protected environment with a randomized block design with a split-plot arrangement. The treatments consisted of a main plot consisting of the electrical conductivity of the nutrient solution (1.0, 2.0, 3.0, 4.0, and 5.0 dSm−1) and a subplot with five hydrogen peroxide concentrations (0.0, 0.15, 0.30, 0.45, and 0.60 mM). The increase in the electrical conductivity of the nutrient solution reduced bulb length, the solution volume applied, water uptake, total fresh mass, and the solution use efficiency by plants. Throughout the cultivation cycle in the hydroponic system, the consumption of nutrient solution was 459 mm lost by evapotranspiration. Acclimation with 0.60 mM hydrogen peroxide associated with 1 dSm−1 of electrical conductivity of the nutrient solution favors bulb diameter in chives. The increase in electrical conductivity compromises the productive yield of chives.

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“…Excessive uptake of Na caused nutritional imbalance and detriment K uptake, increased reactive oxygen species, damage the membrane structure and reduced chlorophyll content which may affect the plant growth and survival (Gerona et al, 2019;Hniličková et al, 2019). Chrysargyris et al (2021) opined that salinity level of 75 mM NaCl decreased the biomass yield of verbena and geranium by 38.2% and 21.5%, respectively. Salt stress of 4.5 g/L of NaCl decreased the plant height of apple mint and pennyroyal by 50% (Aziz et al, 2008).…”

Section: Kalwanjimentioning

confidence: 99%

“…In salt stressed plants reduced photosynthetic activity is another critical aspect responsible for reduced plant growth and productivity (Zhao et al, 2007). Excessive accumulation of Na disturbs the biosynthesis of chlorophyll content, lowered the stomatal conductance and net photosynthetic rate (Chrysargyris et al, 2021). When accumulated Na or Cl rise to toxic levels in leaf tissue, it initiates necrotic tips or margins or premature leaf senescence (Hniličková et al, 2019), thus leading to stunted growth.…”

Section: Kalwanjimentioning

confidence: 99%

Biomass Yield Response of Different Medicinal Plants Under Dual Stress of Salinity and Sodicity

Qādir¹,

Ahmed²,

Anjum³

et al. 2022

PJAR

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S alt stress is one of the main limiting factors for plant production that limits the spread of plants in dryland regions. It is likely to cause further deterioration in crop growth and production due to uncertain precipitation patterns and a rise in temperature expected from climate change (Panta et al., 2014). According to Wang et al. (2003), salinization will affect half of the cultivatable area in the middle of the 21 st century. At the same time, to ensure food security, agriculture has expanded into marginally salt-affected areas that could support biomass production (Shabala, 2013). One of the best Abstract | One of the best strategies for the utilization of salts affected soils is the screening of available local plants which can grow or survive under salt stress and have considerable economic importance to the farming community. Therefore, a three-years pot experiment was executed to explore the salinity tolerance of medicinal plants i.e., Podeena (Mentha spicata), Hina (Lawsonia inermis), Qulfa (portulace oleracea), Methi (Trigonella foenumgraceum), Dill (Anethum graveolens) and Kalwanji (nigella sativa), under dual stress of EC e (electrical conductivity of soil extract) 0.79, 6 and 8 dS m -1 and SAR (sodium adsorption ratio) 5.99, 25 and 35. Each crop was grown for four months and biomass yield data was recorded. Results of three successive seasons suggest that all the evaluated medicinal plants can grow under the medium salinity and sodicity level of (6 dS m -1 + 25 SAR). However, biomass yield decreased linearly with increasing levels of salinity and sodicity and a maximum reduction of 63.25% for Podeena, 48.15% for Hina, 54.74% for Qulfa, 32.87% for Methi, 59.77% for Dill and 45.18% for Kalwanji was recorded at the highest level of salinity + sodicity (EC e 8 dS m -1 + SAR 35).

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Performance of Hydroponically Cultivated Geranium and Common Verbena under Salinity and High Electrical Conductivity Levels

Cited by 10 publications

References 62 publications

Salinity Stress Influences the Main Biochemical Parameters of Nepeta racemosa Lam.

Salinity Stress Influences the Main Biochemical Parameters of Nepeta racemosa Lam.

Effect of Electrical Conductivity Levels and Hydrogen Peroxide Priming on Nutrient Solution Uptake by Chives in a Hydroponic System

Biomass Yield Response of Different Medicinal Plants Under Dual Stress of Salinity and Sodicity

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