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Effect of selenium on selected macronutrients in maize plants

100%

Hawrylak-Nowak B.

Journal of Elementology

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2008

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tom 13

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nr 4

513-519

Selenium is an essential element for humans, animals and some species of microorganisms. In higher plants, however, the role of selenium is still unclear. Because selenium enrichment may influence the nutrient balance of plants, a study was done to test the effects of selenite-Se (Na2SeO3⋅5H2O) on selected macronutrients content in maize (Zea mays L. var. saccharata Kcke. cv. Złota Karłowa) seedlings. Plants were grown in Hoagland I nutrient solution (pH 6,2) amended with selenite at 0 (control), 5, 25, 50 and 100 μmol⋅dm-3 for 14 days. The dry weight of the shoots was then analyzed for phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg) content. Phosphorus and calcium content increased, while potassium content decreased with increasing selenium treatments. No significant differences were found for magnesium level. Plant growth was affected by excessive selenium concentration. At low concentration (5 μmol⋅dm-3), selenium tended to stimulate the plant growth and the root elongation but at higher concentrations (50 and 100 μmol⋅dm-3) the dry mass accumulation and root tolerance index severely decreased. The study revealed that disturbances of growth and reduction of plant’s biomass at the presence of high selenium concentrations in the nutrient solution may have resulted from the disturbance of mineral balance of plants, namely accumulation of large amounts of calcium and phosphorus in shoot tissues.

2

Selenite is more efficient than selenate in alleviation of salt stress in lettuce plants

100%

Hawrylak-Nowak B.

Acta Biologica Cracoviensia. Series Botanica

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2015

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tom 57

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nr 2

3

Słone życie halofitów

100%

Hawrylak-Nowak B.

Ekonatura

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2013

|

nr 08

4

Comparative effect of two selenium forms on nitrate reductase activity in maize seedlings

100%

Hawrylak-Nowak B.

Acta Biologica Cracoviensia. Series Botanica. Supplement

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2009

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tom 51

|

nr 2

5

Enhanced selenium content in sweet basil (Ocimum basilicum L.) by foliar fertilization

100%

Hawrylak-Nowak B.

Vegetable Crops Research Bulletin

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2008

|

tom 69

6

Selected antioxidant properties of alfalfa, radish, and white mustard sprouts biofortified with selenium

63%

Woch W., Hawrylak-Nowak B.

Acta Agrobotanica

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2019

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tom 72

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nr 2

The aim of this study was to evaluate the effect of application of two mineral selenium forms (selenite Se4+ or selenate Se6+) on the accumulation of this element by alfalfa (Medicago sativa), radish (Raphanus sativus var. sativus), and white mustard (Sinapis alba) at early stages of plant development for biofortification of sprouts with selenium, and the impact of this process on selected phytochemical traits. For this purpose, selenium-biofortified sprouts were analyzed for the contents of l-ascorbic acid and anthocyanin as well as their antioxidant activity. Additionally, the concentration of selenium in the biomass was determined. It was demonstrated that the application of selenium contributed to increased bioaccumulation of the element in the sprouts, constituting an effective method for the production of selenium-biofortified food. Selenate was accumulated less efficiently than was selenite. It was found that a concentration of 20 µmol L−1 Se in the form of both selenate and selenite was an optimal dose for enrichment of the sprouts with this element. Biofortification of the experimental species with selenium (20 µmol L−1) generally increased accumulation of anthocyanins but did not significantly alter the level of l-ascorbic acid and free radical scavenging activity. Therefore, it seems that consumption of selenium-biofortified sprouts can be an effective way to supplement low-selenium diets with this element.

7

Assessment of allantoin concentrations in comfrey root available on the Polish market

63%

Hawrylak-Nowak B., Dresler S.

Acta Agrobotanica

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2023

|

tom 76

8

Estimation of the macro- and micronutrient status of raspberries grown in the Lublin region

51%

Dresler S., Bednarek W., Tkaczyk P., Hawrylak-Nowak B.

Folia Horticulturae

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2015

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tom 27

|

nr 1

9

The dual effects of two inorganic selenium forms on the growth, selected physiological parameters and macronutrients accumulation in cucumber plants

51%

Hawrylak-Nowak B., Matraszek R., Pogorzelec M.

Acta Physiologiae Plantarum

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2015

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tom 37

|

nr 02

The boundary between beneficial and phytotoxic levels of selenium (Se) is narrow, and both induce alteration in plant growth and their physiology. In this study, the influence of two Se forms (selenite or selenate) with different concentrations (2–80 lM) on cucumber plants was investigated. The toxicity threshold for selenate and selenite was determined at the concentrations of 80 and 20 lM, respectively. In the Se-exposed plants, the growthpromoting effect was found at 6 lM of selenite and at 6–20 lM of selenate. The root activity considerably increased with increasing selenite concentrations suggesting the upregulation of mitochondrial dehydrogenases activity. Selenite treatment also impaired photosynthetic pigments accumulation and chlorophyll fluorescence parameters. Moreover, Se exerted a dual effect on lipid peroxidation in roots: at low concentrations it inhibited this process, whereas at high concentrations it enhanced the accumulation of harmful lipid peroxides. Under low Se concentrations (\10 lM), the accumulation of Se in shoots was similar in the presence of selenate and selenite. When Se concentration was[10 lM, the accumulation of Se in shoots was greater in selenate-exposed than seleniteexposed plants. However, in the roots the Se concentrations were always higher after selenite exposure comparing to selenate. The N level in plants was generally maintained constant, while the remaining macronutrients (especially K, P, and S) concentrations were significantly changed depending on the form and concentrations of Se. These results imply that an application of either selenate or selenite at concentrations\10 lM may be potentially used for biofortification of cucumber with Se and changes in plant macronutrient contents are not expected under these conditions.

10

The response of lettuce to fluorescent light and led light relative to different nitrogen nutrition of plants

51%

Borowski E., Hawrylak-Nowak B., Michalek S.

Acta Scientiarum Polonorum. Hortorum Cultus

|

2014

|

tom 13

|

nr 5

In two successive pot experiments with lettuce cv. ‘Królowa Majowych’, conducted in a phytotron, this study investigated the effect of cool white fluorescent light (FRS) at a PPFD 200 ȝmol·m-2·s -1 and red-blue LED light at a PPFD of 200 and 800 ȝmol·m-2·s -1 on photosynthesis, yield, leaf area, SLA, and the content of photosynthetic pigments, total N and nitrates. Experimental plants were grown in sphagnum peat supplemented with full-strength Hoagland’s solution at the beginning of the experiment. 10 days after plants were pricked out, 4 experimental series were made which differed in the form of N supplied to the growing medium at a rate of 420 mg (2N): 1) Hoagland’s solution (control); 2) Hoagl + 2N-NO3; 3) Hoagl + 2N-NH4; 4) Hoagl + 2N-NH4/NO3. The obtained results showed that the lettuce leaf yield under FRS light was distinctly higher than under LED light at a PPFD of 200, and in particular at 800 ȝmol·m-2·s -1. Besides, the leaves grown under FRS light showed a significantly thinner leaf blade (SLA) and a lower content of photosynthetic pigments, total N and nitrates. The photosynthetic rate was higher under LED light relative to FRS light. Different nutrition of plants with N-NO3, N-NH4 and N-NH4/NO3 had a similar effect on the yield and analysed traits of lettuce leaves, regardless of the type of light and the level of irradiation with LED light. LED lamps seem to be a very promising light source for plants, but they require further research on how to adapt the spectral distribution of light to their requirements.

11

Protein hydrolysate as a component of salinized soil in the cultivation of Ageratum houstonianum Mill. (Asteraceae)

51%

Matraszek R., Hawrylak-Nowak B., Chwil M.

Acta Agrobotanica

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2015

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tom 68

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nr 3

The aim of the present study was to evaluate the possibility of using a protein hydrolysate, Hemozym N-K 4.5-6, as a component of salinized soil in the cultivation of flossflower (Ageratum houstonianum Mill., Asteraceae). The experiment was focused on the yield and decorative value of A. houstonianum, grown under different concentrations of NaCl and/or Hemozym. Ageratum houstonianum plants were grown in the soil under different NaCl salinity (EC: 0.28 – as control or 3.25 dS m−1 – salt stress) or/and Hemozym dose (0, 0.07 or 0.14 ml kg−1). The results of the experiment imply that A. houstonianum is sensitive to salinity. The application of Hemozym to both unsalinized and salinized soils caused an increase in the yield of the plant organs (roots, stems, leaves, and inflorescence), the number of leaves, and the chlorophyll content without significant changes in the carotenoids. Moreover, an increase in the number and size of first-order inflorescences (heads) as well as more intensive flower color were observed. Thus, it can be stated that the protein hydrolysate studied can be a beneficial component of both salinized and unsalinized soils in the cultivation of A. houstonianum.

12

Wpływ kwasów organicznych na fitotoksyczność oraz akumulację kadmu przez rośliny słonecznika

51%

Hawrylak-Nowak B., Matraszek-Gawron R., Rubinowska K., Michalek S.

Annales Horticulturae

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2017

|

tom 27

|

nr 3

13

The effect of sulphur and nickel interaction on micronutrient content in Triticum aestivum L.

51%

Matraszek R., Hawrylak-Nowak B., Chwil M., Chwil S.

Acta Agrophysica

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2017

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tom 24

|

nr 1

Excessive amounts of Ni alter the micronutrients status of plants. In turn, S not only plays a pivotal role in plant growth but is also involved in enhancing stress tolerance. The purpose of this study was to examine the effects of Ni and S on the micronutrients status in spring wheat. Three S-sulphate levels (2-standard, 6, and 9 mM) and four Ni treatments (0, 0.0004, 0.04, and 0.08 mM) in Hoagland’s nutrient solution were applied for 2 weeks. Ni excess at the standard S level generally reduced Mn, Mo, and Zn as well as increased Cl content in roots and shoots, reduced shoot B content without changes in the root content of this element, whilst Fe and Cu content rose in roots and decreased in shoots. The translocation of Fe and Cu from roots to shoots was repressed, but that of Mo was enhanced. The Mn and Zn translocation depended on Ni concentration, while that of B and Cl remained unaffected. Intensive S nutrition of Ni-exposed wheat, as a rule, elevated root and shoot Fe, B, Cl, Mn, and Zn content and increased root Cu content. Simultaneously, various changes in Fe, Cu, Mn, Mo, and Zn translocation were found. Our results imply that intensive S nutrition can effectively improve the micronutrient status in wheat hampered by Ni.

14

Effect of the interaction of nickel stress and sulphur supplementation on the content and accumulation of macronutrients in white mustard (Sinapis alba L.)

45%

Matraszek R., Hawrylak-Nowak B., Chwil M., Chwil S., Rudas M.

Electronic Journal of Polish Agricultural Universities. Series Agronomy

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2017

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tom 20

|

nr 2

15

The effects of light quality on photosynthetic parameters and yield of lettuce plants

45%

Borowski E., Michalek S., Rubinowska K., Hawrylak-Nowak B., Grudzinski W.

Acta Scientiarum Polonorum. Hortorum Cultus

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2015

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tom 14

|

nr 5

The influence of light emitted by light-emitting diodes (LEDs) of different spectral composition towards white fluorescent light FL (W) on the photosynthetic activity of leaves and yield of lettuce was evaluated in pot experiments conducted in controlled conditions at PPFD of 200 µmol m -2 s -1 . The LEDs emitting white (12W), red (12R) and red-blue (R/B) radiation from lamps of different ratio of red diodes (R) towards the blue ones (B) (9R+3B; 10R+2B; 11R+1B) was used. The results showed that the lowest yield was found in plants grown under LED (12W), and the highest one under FL (W) light. The mass and leaf area of plants illuminated by FL (W) and LED (12R) were similar. The increase of radiation R and decrease of B caused an increase in biomass, leaf area (LA), and specific leaf area (SLA) decrease of chlorophyll concentrations in leaves. Leaves of plants cultivated under LED (R/B) had the higher stomatal conductance, photosynthesis and transpiration parameters than under other treatments. The lowest value of chlorophyll fluorescence parameters (Fo, Fm, Fv/Fm) were noted under the LED (12R) lighting. However, taking into account the energy consumption by the using light sources, the plant yielding, and other determined parameters, the most beneficial for lettuce production seems to be LED (11R + 1B) light. Taking into account the energy consumption of light sources, the plant yielding, and other determined in the study parameters, LED (11R + 1B) light appears the most beneficial for lettuce production.

16

The water treated with low-frequency low-pressure glow plasma enhances the phytoavailability of selenium and promotes the growth of selenium-treated cucumber plants

45%

Hawrylak-Nowak B., Dresler S., Matraszek-Gawron R., Oszczeda Z., Pogorzelec M.

Acta Scientiarum Polonorum. Hortorum Cultus

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2018

|

tom 17

|

nr 4

For its specific physical and physicochemical properties, the water treated with low-frequency low-pressure glow plasma (GPTW) affects the growth of plants and enhances the phytoavalibility of selenium (Se) ions from the nutrient solution. The basic biometric and physiological parameters of cucumber and the uptake of Se ions applied as selenate (Na2SeO4) from the nutrient solution prepared using GPTW or distilled water (DW) were compared. In the presence of Se, the fresh weight (f.w.) of shoots of plants growing in waterdifferentiated nutrient solutions did not differ, whilst their dry weight (d.w.) and leaf area (LA) were higher in plants grown in the GPTW- than in DW-containing medium. The use of GPTW for preparation of the nutrient solution was associated with a substantial improvement of Se ions phytoavailability, compared to the regular growth medium based on DW. Despite the higher Se bioaccumulation in the GPTW- than in DW-based medium, the phytotoxicity of this element was not enhanced. GPTW-induced Se accumulation was remarkable and hence recommended for further study to understand the detailed mechanism GPTW action.

Ograniczanie wyników

Effect of selenium on selected macronutrients in maize plants

Selenite is more efficient than selenate in alleviation of salt stress in lettuce plants

Słone życie halofitów

Comparative effect of two selenium forms on nitrate reductase activity in maize seedlings

Enhanced selenium content in sweet basil (Ocimum basilicum L.) by foliar fertilization

Selected antioxidant properties of alfalfa, radish, and white mustard sprouts biofortified with selenium

Assessment of allantoin concentrations in comfrey root available on the Polish market

Estimation of the macro- and micronutrient status of raspberries grown in the Lublin region

The dual effects of two inorganic selenium forms on the growth, selected physiological parameters and macronutrients accumulation in cucumber plants

The response of lettuce to fluorescent light and led light relative to different nitrogen nutrition of plants

Protein hydrolysate as a component of salinized soil in the cultivation of Ageratum houstonianum Mill. (Asteraceae)

Wpływ kwasów organicznych na fitotoksyczność oraz akumulację kadmu przez rośliny słonecznika

The effect of sulphur and nickel interaction on micronutrient content in Triticum aestivum L.

Effect of the interaction of nickel stress and sulphur supplementation on the content and accumulation of macronutrients in white mustard (Sinapis alba L.)

The effects of light quality on photosynthetic parameters and yield of lettuce plants

The water treated with low-frequency low-pressure glow plasma enhances the phytoavailability of selenium and promotes the growth of selenium-treated cucumber plants