Increase of selenium concentration in wheat grains through foliar application of sodium selenate

2021 ◽  
Vol 99 ◽  
pp. 103886
Author(s):  
Douglas Delaqua ◽  
Ruan Carnier ◽  
Ronaldo Severiano Berton ◽  
Fabiana Cristina Andrade Corbi ◽  
Aline Renée Coscione
Keyword(s):  
Foliar Application ◽  
Selenium Concentration ◽  
Sodium Selenate ◽  
Wheat Grains

scholarly journals Selenium Biofortification of Wheat as a Strategy to Improve Human Nutrition

Agriculture ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 144
Author(s):  
Aleksandra Radawiec ◽  
Wiesław Szulc ◽  
Beata Rutkowska
Keyword(s):  
Spring Wheat ◽  
Foliar Application ◽  
Stem Elongation ◽  
Sodium Selenate ◽  
Control Group ◽  
Selenium Content ◽  
Wheat Grain ◽  
Elongation Phase ◽  
Fertilisation Treatment ◽  
Foliar Fertilisation

This paper analyses the effects of soil and foliar fertilization with sodium selenate (VI) on the selenium content in spring wheat grain. The research was carried out at the Departmental Experimental Station of the Institute of Agriculture WULS in Skierniewice in 2018 and 2019. The dose of selenium used was 5.00 g Se·ha−1 in various development stages of spring wheat. The results showed that selenium fertilisation did not affect the size of the grain yield, but both soil and foliar fertilisation significantly increased the content of selenium in wheat grain compared to the control group. The highest Se content was obtained with the method of soil fertilisation combined with the foliar application with a total dose of 10.00 g·ha-1 Se in the stem elongation phase (S + F2), and in the tillering and stem elongation phase (S + F1 + F2), which resulted in the values of 0.615 and 0.719 mg·kg−1 Se in grain, respectively. On this basis, it was concluded that the best time to carry out foliar fertilisation treatment is in the stem elongation phase (BBCH 30–39). The results show that the greatest increase in selenium content in the grain is achieved with soil and foliar fertilisation combined.

scholarly journals Foliar application of sodium selenate induces regulation in yield formation, grain quality characters and 2-acetyl-1-pyrroline biosynthesis in fragrant rice

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Haowen Luo ◽  
Bin Du ◽  
Longxin He ◽  
Axiang Zheng ◽  
Shenggang Pan ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Grain Yield ◽  
Grain Quality ◽  
Foliar Application ◽  
Higher Plants ◽  
Sodium Selenate ◽  
Rice Varieties ◽  
Fragrant Rice ◽  
The Stability ◽  
Heading Stage

Abstract Background Selenium (Se) is a beneficial element for higher plants and essential for mammals. To study the effect of the foliar application of sodium selenate on fragrant rice performance, a pot experiment was conducted in Guangdong, China. At the initial heading stage, one-time foliar application of sodium selenate with concentrations of 0, 10, 20, 30, 40 and 50 μmol·L− 1 (named CK, Se1, Se2, Se3, Se4 and Se5, respectively) were foliar applied on two fragrant rice varieties, ‘Meixiangzhan-2’ and ‘Xiangyaxiangzhan’. Results Selenate application at the initial heading stage not only improved the grain yield of fragrant rice by increasing the seed-setting rate and grain weight, but also promoted the grain quality by increasing crude protein contents and lowering the chalky rice rate. Furthermore, Se applications enhanced the biosynthesis of 2-acetyl-1- pyrroline (2-AP), the main aromatic compound, by increasing the contents of precursors (△1- pyrroline, proline and pyrroline-5-carboxylic acid (P5C)) and the activities of enzymes (proline dehydrogenase (PRODH), △1-pyrroline-5-carboxylic acid synthetase (P5CS), and ornithine aminotransferase (OAT)) in fragrant rice. The results also showed that foliar application of sodium selenate enhanced the antioxidant system of both varieties by promoting the activities of peroxidase (POD), superoxide dismutase (SOD), catalase (CAT) and reducing the contents of malondialdehyde (MDA). Furthermore, the real-time PCR analyses depicted that foliar application of selenate up-regulated the GPX1, GPX4 and CATC transcripts. The higher antioxidative enzymatic activities might strength the stress resistant to ensure the stability of yield in fragrant rice form abiotic stress. Conclusions Foliar applications of sodium selenate at the initial heading stage increased the grain 2-AP content by enhancing the biosynthesis-related enzymes and precursors. The grain yield and quality of fragrant rice also increased due to selenate application. Furthermore, foliar application of selenate promoted the activities of enzymes such as POD, SOD and CAT and up-regulated the expression of gene GPX4, GPX1 and CATC.

scholarly journals Screening of Foliar Reagent Reduces Cadmium Accumulation in Wheat Grains

2021 ◽  
Author(s):  
Shenglan Xia ◽  
Jie Wang ◽  
Zanming Chen ◽  
Hai Lan ◽  
Zhenguo Shen ◽  
...  
Keyword(s):  
Field Experiment ◽  
Foliar Application ◽  
Grain Filling ◽  
Cadmium Content ◽  
Cd Accumulation ◽  
Wheat Grains ◽  
Flag Leaves ◽  
Filling Stage ◽  
Grain Filling Stage ◽  
The Relationship

Abstract Cadmium (Cd) in agricultural soils can be taken up by wheat and transferred into the grains, risking human health. In this study, we tested the effects of nineteen foliar treatments alone, and also combined treatments on the Cd concentration of grains in pot/field experiments, and the field experiment, respectively. In addition, we tested the better growth period for foliar application to inhibit Cd accumulation in wheat grains. Foliar application of Ethylenediaminetetraacetic acid (EDTA), Sodium selenite (Se) and Sodium nitroprusside (SNP) can significantly reduce Cd concentration of wheat grains, with 49.2%, 29.6%, and 28.8% decreased respectively in the field. Foliar application of EDTA, Se, Zinc sulphate (Zn), Ascorbic acid (ASA), Sodium silicate (Si) and Ammonium molybdate (Mo) can significantly reduce Cd concentration of wheat grains in different treatments, with 32.3%, 32.0%, 27.7%, 27.7%, 26.3% and 25.9% decreased respectively in the pot. Thus, foliar application of 2 mM EDTA and 2 mM Se exerted excellent effects in controlling the Cd accumulation of wheat grains for both in pot and field experiment. We were concerned about the transfer of different aboveground tissues to the grain, foliar application with 0.1 mM Se or 2 mM EDTA significantly reduced Cd concentrations in grains both in grain filling stage and heading + grain-filling stage. Spraying at the filling stage of wheat has a better effect than at the heading stage for reducing the cadmium content in grains. In addition, the relationship between Cd concentration of grains and husks were significantly positive, while the relationship between Cd concentration of grains and flag leaves was significantly negative. Cd content in wheat grains decreased may be due to the Cd accumulation of flag leaves and the decrease of Cd transport from flag leaves and husks to the grains, which in turn reduces the transport of Cd to the grains.

scholarly journals Selenium Effect on Rye Malt Quality

2013 ◽  
Vol 67 (4-5) ◽  
pp. 394-398
Author(s):  
Kristīne Antoņenko ◽  
Viesturs Kreicbergs ◽  
Māra Dūma ◽  
Sandra Ozola
Keyword(s):  
Selenium Concentration ◽  
Total Phenol ◽  
Sodium Selenate ◽  
Substantial Part ◽  
Total Phenol Content ◽  
Malt Extract ◽  
Cereal Crop ◽  
Quality Indices ◽  
Bread Making ◽  
Secale Cereale L

Abstract Rye (Secale cereale L.) is the most important cereal crop after wheat, rice and maize. A substantial part of the rye yield is used for bread making, especially in European countries. There have been numerous studies on grain enrichment with selenium (Se), as it is known that selenium is a fundamental trace element essential for human health and in the form of selenoproteins plays key structural and enzymic roles. The main aim of this study was to investigate the effect of different selenium concentrations on quality indices of rye malt - the content of malt extract, diastase activity, selenium and total phenol content in malt. Rye grain of 95% viability was soaked and germinated at temperature +6 ± 2 °C for three days +18 ± 2 °C, using sodium selenate Na2SeO4 solutions (Se concentration 3 mg l-1, 5 mg l-1, 10 mg l-1), and dried in an oven for 24 hours at temperature +70 - 112 °C. Germination of grain with deionised water served as a control. The obtained results showed that an increase of selenium concentration caused increase of malt extract concentration (from 74 to 80%), selenium concentration (from 0.0139 to 0.3251 mg kg-1) and total phenol concentration (from 3.13 to 3.63 mg GAE g-1 DW) in rye malt, while diastase activity decreased from 330 to 216.

scholarly journals Prospects of the Application of Garlic Extracts and Selenium and Silicon Compounds for Plant Protection against Herbivorous Pests: A Review

Agriculture ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 64
Author(s):  
Nadezhda Golubkina ◽  
Vladimir Zayachkovsky ◽  
Sergei Sheshnitsan ◽  
Liubov Skrypnik ◽  
Marina Antoshkina ◽  
...  
Keyword(s):  
Insect Pests ◽  
Foliar Application ◽  
Plant Protection ◽  
Gall Midge ◽  
Seed Storage ◽  
Growth Stimulation ◽  
Environmental Water ◽  
Garlic Extract ◽  
Sodium Selenate ◽  
Silicon Compounds

Protection of plants against herbivorous pests is an important aspect that guarantees agricultural efficiency, i.e., food provision to populations. Environmental, water and foodstuff pollution by toxic pesticides, along with climate changes, highlight the necessity to achieve intensive development of ecologically safe methods of herbivory control. This review discusses modern methods of plant protection against insect pests: the biofortification of plants with selenium, treatment of plants with bulk and nano-silicon, and utilization of garlic extracts. The peculiarities of such methods of defense are described in relation to growth stimulation as well as increasing the yield and nutritional value of products. Direct defense methods, i.e., mechanical, hormonal, through secondary metabolites and/or mineral element accumulation, and indirect defense via predator attraction are discussed. Examples of herbivorous pest control during plant growth and grain/seed storage are emphasized. A comparison of sodium selenate, silicon containing fertilizer (Siliplant) and garlic extract efficiency is analyzed on Raphanus sativus var. lobo infested with the cruciferous gall midge Contarinia nasturtii, indicating the quick annihilation of pests as a result of the foliar application of garlic extract or silicon-containing fertilizer, Siliplant.

scholarly journals Biofortification of Diverse Basmati Rice Cultivars with Iodine, Selenium, and Zinc by Individual and Cocktail Spray of Micronutrients

Agronomy ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 49
Author(s):  
Asif Naeem ◽  
Muhammad Aslam ◽  
Mumtaz Ahmad ◽  
Muhammad Asif ◽  
Mustafa Atilla Yazici ◽  
...  
Keyword(s):  
Grain Yield ◽  
Foliar Application ◽  
Genotypic Variation ◽  
Foliar Spray ◽  
Brown Rice ◽  
Basmati Rice ◽  
Sodium Selenate ◽  
Human Populations ◽  
Rice Grain ◽  
Rice Cultivars

Given that an effective combined foliar application of iodine (I), selenium (Se), and zinc (Zn) would be farmer friendly, compared to a separate spray of each micronutrient, for the simultaneous biofortification of grain crops, we compared effectiveness of foliar-applied potassium iodate (KIO3, 0.05%), sodium selenate (Na2SeO4, 0.0024%), and zinc sulfate (ZnSO4∙7H2O, 0.5%), separately and in their combination (as cocktail) for the micronutrient biofortification of four Basmati cultivars of rice (Oryza sativa L.). Foliar-applied, each micronutrient or their cocktail did not affect rice grain yield, but grain yield varied significantly among rice cultivars. Irrespective of foliar treatments, the brown rice of cv. Super Basmati and cv. Kisan Basmati had substantially higher concentration of micronutrients than cv. Basmati-515 and cv. Chenab Basmati. With foliar-applied KIO3, alone or in cocktail, the I concentration in brown rice increased from 12 to 186 µg kg−1. The average I concentration in brown rice with foliar-applied KIO3 or cocktail was 126 μg kg−1 in cv. Basmati-515, 160 μg kg−1 in cv. Chenab Basmati, 153 μg kg−1 in cv. Kisan Basmati, and 306 μg kg−1 in cv. Super Basmati. Selenium concentration in brown rice increased from 54 to 760 µg kg−1, with foliar-applied Na2SeO4 individually and in cocktail, respectively. The inherent Zn concentration in rice cultivars ranged between 14 and 19 mg kg−1 and increased by 5–6 mg Zn per kg grains by foliar application of ZnSO4∙7H2O and cocktail. The results also showed the existence of genotypic variation in response to foliar spray of micronutrients and demonstrated that a foliar-applied cocktail of I, Se, and Zn could be an effective strategy for the simultaneous biofortification of rice grains with these micronutrients to address the hidden hunger problem in human populations.

Effect of various sources of selenium fertilization on the selenium concentration of feed crops

1994 ◽  
Vol 74 (3) ◽  
pp. 285-290 ◽  
Author(s):  
Umesh C. Gupta ◽  
J. A. MacLeod
Keyword(s):  
Prince Edward Island ◽  
Foliar Spray ◽  
Selenium Concentration ◽  
Sodium Selenate ◽  
First Year ◽  
Whole Plant ◽  
Se Deficiency ◽  
Second Year ◽  
Deficiency Diseases ◽  
Feed Crop

This study was conducted in Prince Edward Island (PEI) Canada to determine the effect of various sources of selenium (Se) (i) sodium selenate (ii) selcote (iii) selcote 2 year and (iv) lime coated Se-granules on the Se concentration in cereals, forages and soybeans. All sources were applied to the soil at 10 g Se ha−1. For soybeans, sodium selenate was also applied as a foliar spray. All sources, in the year of application, proved effective in raising the feed crop Se to more than 100 μg Se kg−1, the minimum level required to prevent Se deficiency diseases in livestock. Lime coated Se granules resulted in much lower Se in all crops than other Se sources. Selenium concentration in soybean grain was higher than in cereals and forages treated with Se. Selenium concentration in soybean grain was higher following foliar applications of sodium selenate (3005 μg kg−1) than following soil application (1930 μg kg−1). Experiments conducted at a second location produced similar results. In most cases, soybean grain contained higher Se than either the whole plant or leaves. Selcote resulted in significantly higher Se, during the first year in soybean and forages, than selcote 2 year. This relationship was not consistent on cereals. Selenium concentrations in the second year crop of soybeans were below the minimum required level of 100 μg kg−1 needed to prevent Se deficiency in livestock for all Se sources except for the selcote 2 year source. Only the latter Se source resulted in a Se concentration of > 100 μg kg−1 for 2 yr. Soybeans fertilized with Se should prove to be an excellent feed crop for enriching grain with Se. Key words: Podzol soils, selcote, sodium selenate, barley, oat, forages, soybeans, crop Se

Foliar application of several reagents reduces Cd concentration in wheat grains

2021 ◽  
Author(s):  
Shenglan Xia ◽  
Jie Wang ◽  
Zanming Chen ◽  
Hai Lan ◽  
Zhenguo Shen ◽  
...  
Keyword(s):  
Foliar Application ◽  
Wheat Grains
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