Ion and mineral concentrations in roots and leaves of two grapevine cultivars as affected by nitric oxide foliar application under NaCl stress

Aim: The present study was conducted to investigate the effects of SNP (sodium nitroprusside, as nitric oxide donor) on mineral concentration in two grapevine (Vitis vinifera L.) cultivars, Qarah Shani and Thompson Seedless, under different levels of NaCl stress.Methods and results: The plants were exposed to NaCl at the rate of 0, 25, 50, 75 and 100 mM in nutrient solution and foliar spray of SNP at 0, 0.5, 1 and 1.5 mM under an open hydroponic system. Results indicated that with increasing salinity levels, the Cl- and Na+ concentrations increased and the K+, Ca2+, Mg2+, NO3-N, Zn2+, Fe2+ concentrations and K+/Na+ ratio decreased in both cultivars. However, application of SNP mitigated the Cl- and Na+ concentrations and improved the K+, Ca2+, Mg2+ and NO3-N concentrations in leaves and roots of both cultivars. The application of SNP did not significantly affect Zn2+ and Fe2+ concentrations under 100 mM NaCl.Conclusion: The adverse effects of NaCl stress in nutrient element uptake were ameliorated by the exogenous application of SNP in grapevine.Significance and impact of the study: Salinity of soil and water sources is one of the most serious environmental threats in Iran. Iran ranks tenth among grape-producing countries in the world. Therefore, the application of SNP can serve as an important component to reduce the adverse effects of salinity stress in nutrient element uptake in grapevine.

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Response Of Strawberry ‘Selva’ Plants On Foliar Application Of Sodium Nitroprusside (Nitric Oxide Donor) Under Saline Conditions

Journal of Horticultural Research ◽

10.2478/johr-2014-0031 ◽

2014 ◽

Vol 22 (2) ◽

pp. 139-150 ◽

Cited By ~ 3

Author(s):

Babak Jamali ◽

Saeid Eshghi ◽

Bahman Kholdebarin

Keyword(s):

Nitric Oxide ◽

Sodium Nitroprusside ◽

Salinity Stress ◽

Foliar Application ◽

Antioxidant Response ◽

Nitric Oxide Donor ◽

Saline Stress ◽

Plant Tolerance ◽

Time Of Application ◽

Earlier Application

AbstractThis study was conducted to evaluate enzymatic and non-enzymatic antioxidant response of ‘Selva’ strawberry plants on exogenous nitric oxide under saline conditions with respect to time of application. Sodium nitroprusside (SNP), as nitric oxide (NO) source, was applied on the leaves by spray before, simultaneously, or after the initiation of saline stress. Results indicated that salinity and/or SNP at concentrations of 50 and 75 μM caused increase in activity of antioxidant enzymes, such as catalase, superoxide dismutase, glutathione reductase, ascorbate peroxidase and peroxidases as well as leaf content of proline, glycine betaine and total phenolics in comparison to control. Time of NO application was important because the highest levels of catalase and ascorbic peroxidase were in plants pre-treated with SNP one week before the initiation of salinity stress. Plants from these combinations had the highest fruit yield among all saline stressed plants. So, it seems that earlier application of SNP is more effective for an optimised protection against deleterious influence of salinity stress, because pre-treated plants had a sufficient time to develop an appropriate antioxidant response. The application of SNP simultaneously or after exposure of plants to stress conditions, was also helpful in increasing plant tolerance but to a lesser extent.

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Effects of Exogenous Nitric Oxide Donor SNP on Contents of Chlorophyll and Free Proline, Activity of Antioxidative Enzyme in Rice Seedlings under NaCl Stress

ACTA AGRONOMICA SINICA ◽

10.3724/sp.j.1006.2008.01849 ◽

2009 ◽

Vol 34 (10) ◽

pp. 1849-1853

Author(s):

Qiang XIAO

Keyword(s):

Nitric Oxide ◽

Nacl Stress ◽

Antioxidative Enzyme ◽

Nitric Oxide Donor ◽

Free Proline ◽

Rice Seedlings ◽

Exogenous Nitric Oxide

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Selenium Alleviates the Adverse Effect of Drought in Oilseed Crops Camelina (Camelina sativa L.) and Canola (Brassica napus L.)

Molecules ◽

10.3390/molecules26061699 ◽

2021 ◽

Vol 26 (6) ◽

pp. 1699

Author(s):

Zahoor Ahmad ◽

Shazia Anjum ◽

Milan Skalicky ◽

Ejaz Ahmad Waraich ◽

Rana Muhammad Sabir Tariq ◽

...

Keyword(s):

Drought Stress ◽

Adverse Effects ◽

Yield Components ◽

Foliar Application ◽

Foliar Spray ◽

Seed Priming ◽

Brassica Napus L ◽

Yield Attributes ◽

Oilseed Crops ◽

Effects Of Drought

Drought poses a serious threat to oilseed crops by lowering yield and crop failures under prolonged spells. A multi-year field investigation was conducted to enhance the drought tolerance in four genotypes of Camelina and canola by selenium (Se) application. The principal aim of the research was to optimize the crop yield by eliciting the physio-biochemical attributes by alleviating the adverse effects of drought stress. Both crops were cultivated under control (normal irrigation) and drought stress (skipping irrigation at stages i.e., vegetative and reproductive) conditions. Four different treatments of Se viz., seed priming with Se (75 μM), foliar application of Se (7.06 μM), foliar application of Se + Seed priming with Se (7.06 μM and 75 μM, respectively) and control (without Se), were implemented at the vegetative and reproductive stages of both crops. Sodium selenite (Na2SeO3), an inorganic compound was used as Se sources for both seed priming and foliar application. Data regarding physiochemical, antioxidants, and yield components were recorded as response variables at crop maturity. Results indicated that WP, OP, TP, proline, TSS, TFAA, TPr, TS, total chlorophyll contents, osmoprotectant (GB, anthocyanin, TPC, and flavonoids), antioxidants (APX, SOD, POD, and CAT), and yield components (number of branches per plant, thousand seed weight, seed, and biological yields were significantly improved by foliar Se + priming Se in both crops under drought stress. Moreover, this treatment was also helpful in boosting yield attributes under irrigated (non-stress) conditions. Camelina genotypes responded better to Se application as seed priming and foliar spray than canola for both years. It has concluded that Se application (either foliar or priming) can potentially alleviate adverse effects of drought stress in camelina and canola by eliciting various physio-biochemicals attributes under drought stress. Furthermore, Se application was also helpful for crop health under irrigated condition.

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Foliar Spray of Alpha-Tocopherol Modulates Antioxidant Potential of Okra Fruit under Salt Stress

Plants ◽

10.3390/plants10071382 ◽

2021 ◽

Vol 10 (7) ◽

pp. 1382

Author(s):

Maria Naqve ◽

Xiukang Wang ◽

Muhammad Shahbaz ◽

Sajid Fiaz ◽

Wardah Naqvi ◽

...

Keyword(s):

Salt Stress ◽

Adverse Effects ◽

Foliar Application ◽

Foliar Spray ◽

Alpha Tocopherol ◽

Antioxidant Potential ◽

Ion Concentration ◽

Guaiacol Peroxidase ◽

Free Proline ◽

Better Than

As an antioxidant, alpha-tocopherol (α-Toc) protects plants from salinity-induced oxidative bursts. This study was conducted twice to determine the effect of α-Toc as a foliar spray (at 0 (no spray), 100, 200, and 300 mg L−1) to improve the yield and biochemical constituents of fresh green capsules of okra (Abelmoschus esculentus L. Moench) under salt stress (0 and 100 mM). Salt stress significantly reduced K+ and Ca2+ ion concentration and yield, whereas it increased H2O2, malondialdehyde (MDA), Na+, glycine betaine (GB), total free proline, total phenolics, and the activities of catalase (CAT), guaiacol peroxidase (GPX), and protease in both okra varieties (Noori and Sabzpari). Foliar application of α-Toc significantly improved the yield in tested okra varieties by increasing the activity of antioxidants (CAT, GPX, SOD, and ascorbic acid), accumulation of GB, and total free proline in fruit tissues under saline and non-saline conditions. Moreover, α-Toc application as a foliar spray alleviated the adverse effects of salt stress by reducing Na+ concentration, MDA, and H2O2 levels and improving the uptake of K+ and Ca2+. Among the tested okra varieties, Noori performed better than Sabzpari across all physio-biochemical attributes. Of all the foliar-applied α-Toc levels, 200 mg L−1 and 300 mg L−1 were more effective in the amelioration of salinity-induced adverse effects in okra. Thus, we concluded that higher levels of α-Toc (200 mg L−1 and 300 mg L−1) combat salinity stress more effectively by boosting the antioxidant potential of okra plants.

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Mineral Composition and Antioxidant Status of Tomato with Application of Selenium

Agronomy ◽

10.3390/agronomy8090185 ◽

2018 ◽

Vol 8 (9) ◽

pp. 185 ◽

Cited By ~ 6

Author(s):

Willian Narváez-Ortiz ◽

Armando Becvort-Azcurra ◽

Laura Fuentes-Lara ◽

Adalberto Benavides-Mendoza ◽

Jesús Valenzuela-García ◽

...

Keyword(s):

Antioxidant Status ◽

Mineral Content ◽

Foliar Application ◽

Tomato Fruit ◽

Nitrogen Concentration ◽

Foliar Spray ◽

Total Antioxidant Status ◽

Mineral Concentration ◽

Best Response ◽

Fertilizer Solution

This experiment was carried out in a greenhouse to evaluate the effects of selenium application (as Na2SeO3) on mineral concentration (as N, P, K, Ca and Se), biomass, yield and total antioxidant status (TAS) of tomato fruit. The study consisted of two experiments: an irrigation experiment with the application of selenium at 0, 2.5 and 5 mg L−1 on the fertilizer solution in soil and perlite; and the foliar application experiment with selenium application at 0, 10, and 20 mg L−1 in foliar spray every 20 days. Results showed that mineral content (as K, Ca, Mg and P) was not modified by selenium application. However, N decreased due to the Se applied in fertilizer solution 5 mg L−1, and a negative correlation was found between the selenium applied in foliar form and the nitrogen concentration. The Se concentration, TAS, and biomass increased in plants in all Se treatments. However, the best response in TAS and Se in fruits was observed with foliar spray every 20 days at concentrations of 10 mg L−1, without negative responses in biomass or mineral content.

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Glycine mitigates fertilizer requirements of agricultural crops: case study with cucumber as a high fertilizer demanding crop

Chemical and Biological Technologies in Agriculture ◽

10.1186/s40538-020-00185-5 ◽

2020 ◽

Vol 7 (1) ◽

Author(s):

Fateme Zargar Shooshtari ◽

Mohammad Kazem Souri ◽

Mohammad Reza Hasandokht ◽

Sepideh Kalateh Jari

Keyword(s):

Foliar Application ◽

Total Yield ◽

Foliar Spray ◽

Nutrient Status ◽

Economic Life ◽

Mineral Nutrient ◽

Mineral Concentration ◽

Soil Application ◽

Yield And Quality ◽

Npk Fertilization

Abstract Background Different approaches have been used to improve mineral nutrient status of plants in absence of chemical fertilization and toward safer products and improved human health. Amino acids have been proposed with such roles in different recent studies. In this study, glycine was applied as foliar (250, 500 and 1000 ppm) or as soil (250 and 500 mg/plant) to cucumber plants compared to unfertilized control and NPK fertilization, under greenhouse conditions. Results The results showed that all glycine treatments increased leaf area and the economic life of plants compared to control. Soil application of glycine at higher concentration of 500 mg/plant was able to produce the same or better records than NPK fertilization, particularly regarding leaf mineral concentration, plant economic life and total yield. Leaf macro- micro-nutrients were most increased under 500 mg soil-glycine application. Foliar spray of 500 ppm glycine resulted in better records than the other two levels, as spray of 1000 ppm glycine showed adverse and toxic effects including leaf necrosis. Fruit firmness was increased only by NPK and soil application of 500 mg glycine, whereas fruit vitamin C was increased by NPK fertilization, soil application of glycine at both levels (250, 500 mg) and foliar application of glycine at 500 ppm compared to control plants. Conclusion The results indicate that soil application of 500 mg glycine/plant was able to improve leaf mineral and physiological characteristics towards higher yield and quality.

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