scholarly journals Influence of Magnetized Water and Seed on Yield and Uptake of Heavy Metals of Tomato

2019 ◽  
Vol 11 (1) ◽  
pp. 122-129 ◽  
Author(s):  
Kamorudeen Olaniyi YUSUF ◽  
Shakiru Ariyo SAKARIYAH ◽  
Modupe Ruth BAIYERI
Keyword(s):  
Heavy Metals ◽  
Tomato Fruit ◽  
Magnetic Flux Density ◽  
Tomato Yield ◽  
Tomato Seeds ◽  
Randomized Design ◽  
Magnetized Water ◽  
Lead And Zinc ◽  
Flow Through ◽  
Iron Manganese

This study assessed influence of magnetized water (MW) and magnetized seed (MS) on yield and uptake of heavy metals of tomato. Tomato seeds were put on permanent magnet (1000 gauss) for 24 hours and water was allowed to flow through magnetic flux density 319 gauss. Tomato seeds (variety UC82B) were planted in 16 pots, thinned after 21 days to one tomato/pot and irrigated with MW or non-magnetized water (NMW). Four treatments used were MS and MW (T1), non-magnetized seed (NMS) and MW (T2), MS and NMW (T3), NMS and NMW (T4). A 1.0 litre of water was applied to tomato plant in a completely randomized design and each treatment was replicated 4 times. Yields and concentrations of cadmium, copper, chromium, iron, manganese, nickel, lead and zinc were determined from the tomato fruit. The mean yields for T1, T2, T3 and T4 were 288.1, 275.8, 176.6 and 200.1 g/pot, respectively. Mean concentrations of Iron for T1, T2, T3 and T4 were 0.015, 0.010, 0.010 and 0.010 mg/L, respectively. Mean concentrations of zinc for T1, T2 T3 and T4 were 0.030, 0.110, 0.115 and 0.125 mg/L. The values of copper, iron, lead, manganese and zinc for T2 were 0.02-0.03, 1.2-1.8, 0.03-0.07, 0.10-0.12 and 0.00-0.01 mg/L. The corresponding values for T4 were 0.02-0.02, 1.30-1.60, 0.04-0.04, 0.08-0.11 mg/L but Zn was not detected. Concentrations of heavy metals in the tomato were below FAO/WHO permissible limits. MW and MS increased tomato yield and didn’t increase uptake of heavy metals that could cause diseases to man.

scholarly journals Researches on the accumulation and transfer of heavy metals in the soil in tomatoes -Solanum lycopersicum

2019 ◽  
Vol 112 ◽  
pp. 03020
Author(s):  
Mihaela Niţu ◽  
Augustina Pruteanu ◽  
Despina Maria Bordean ◽  
Carmen Popescu ◽  
Gyorghy Deak ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Transfer Coefficient ◽  
Human Body ◽  
Contaminated Soil ◽  
Contaminated Soils ◽  
Tomato Fruit ◽  
Human Consumption ◽  
Tomato Fruits ◽  
Lead And Zinc ◽  
Copper Lead

Heavy metals in contaminated soils have benefited from a considerable attention due to the possible risks for the human body. The current study has investigated the accumulation and transfer coefficient for three heavy metals (Cu, Pb, Zn) found in the contaminated soil with three concentrations (c1=1.5%, c2=3.0%, c3=4.5%, c4=6.0%), obtained by mixing the three metals, in the tomato fruit. The highest accumulation in the tomato fruits was recorded for zinc, then copper and the smallest for lead, for all four concentrations used. The transfer coefficient decreases as the concentration of heavy metals increases, so that for high heavy metals concentrations, the values of the transfer coefficient are very low, and for small heavy metals concentrations in the soil, the values for the transfer coefficient are higher. The assessment of accumulation and transfer of heavy metals in the fruits of tomatoes grown in the contaminated soil has concluded that all concentrations of the copper, lead and zinc mix have shown a low risk for human consumption.

scholarly journals Effect of Magnetic Treatment of Irrigation Water on Growth and Yield of Maize under different Water Deficit Conditions

2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Kamorudeen O Yusuf ◽  
Anthony A Adeleye
Keyword(s):  
Water Deficit ◽  
Irrigation Water ◽  
Magnetic Treatment ◽  
Maize Plant ◽  
Growth And Yield ◽  
Magnetic Flux Density ◽  
Randomized Design ◽  
Flow Through ◽  
The Mean ◽  
Set Up

This study was conducted to determine the effect of magnetic treatment of irrigation water (MTW) on the growth and yield of maize under water deficit conditions. The maize was planted in a pot (2 stands per pot) in a transparent garden shed using Completely Randomized Design (CRD). A magnetic flux density of 443 gauss produced from electromagnet was used and measured inside the pipe using a gaussmeter Model GM-2 by Alpha Lab Inc. Water was allowed to flow through the magnetic field in a pipe for about 113 seconds. Four treatments used were 100 (2 litres at 100 %), 80, 60 and 50 % of water requirement labelled as T1, T2, T3 and T4, respectively and each treatment was replicated four times. A control experiment by non–magnetic treatment of water (NMTW) was also set up. The mean heights of maize plant with MTW at 29 days for T1, T2, T3 and T4 were 160, 184, 106, 103 mm while the yields after 86 days were 238.1, 281.6, 232.1 and 210.1 g/pot, respectively. The heights of maize plant with NMTW for T1, T2, T3 and T4 at 29 days were 124, 151, 91 and 90 mm while the yields after 86 days were 156.3, 209.6, 201.6 and 150.6 g/pot, respectively. The yield of maize from MTW compared to yield of maize from NMTW was statistically significant under the same water deficit condition by statistical pair t-test analysis.Keywords: Deficit irrigation, Magnetic treatment of water, Magnetically treated water, Maize

scholarly journals Calcium, Magnesium and Micronutrient Uptake in Watercress (Nasturtium officinale) under Arsenic and Salinity Stress Conditions

2021 ◽  
Vol 2 (4) ◽  
pp. 251-255
Author(s):  
J Sufian ◽  
A Golchin ◽  
A Avanes
Keyword(s):  
Heavy Metals ◽  
Nutrient Solution ◽  
Nasturtium Officinale ◽  
Manganese Zinc ◽  
Randomized Design ◽  
Micronutrient Uptake ◽  
Salinity Levels ◽  
Calcium Magnesium ◽  
Iron Manganese ◽  
Nutrient Solutions

Heavy metals are elements that mainly have a 5-22 gr.cm-3 specific gravity. Some of these metals are essential micronutrients for plant growth (Such as Zinc (Zn), Copper (Cu), Manganese (Mn), Nickel (Ni) and Cobalt (Co)). Some other heavy metals, have a high toxicity properties such as Lead (Pb), Cadmium (Cd) and Mercury (Hg). In order to investigate the potential of watercress (Nasturtium officinale) in the uptake of elements from nutrient solutions with different salinities, a factorial experiment was conducted in a completely randomized design with three replications in the greenhouse. In this experiment, different levels of arsenic were zero, 5, 10, 20, 40, 40, 80 and 160 mg.L-1, which were obtained from sodium arsenate source and added to Epstein’s nutrient solution to obtain the mentioned concentrations. The salt concentration of the nutrient solution was 0, 10, 20, 40 and 80 mM which was prepared from sodium chloride source and added to Epstein solution. After making nutrient solutions with different salinity and concentrations, watercress was cultivated. The ANOVA results showed that the interaction of salinity and arsenic levels on the calcium, magnesium, iron, manganese, zinc and copper concentrations in watercress was significant at the level of one percent probability. The highest concentrations of these elements were obtained in the levels without salinity and arsenic and the lowest values were obtained in the 80 mM salinity levels and 160 mg.l-1 arsenic.

scholarly journals Effect of silicon on tomato production in semi-controlled conditions in the Colombian Caribbean

2020 ◽  
Vol 7 (5) ◽  
pp. 191-194
Author(s):  
Luis Fernando Acosta Perez ◽  
Eliecer Cabrales Herrera
Keyword(s):  
Cultural Practices ◽  
Acid Soil ◽  
Tomato Fruit ◽  
Crop Management ◽  
Soil Conditions ◽  
Tomato Production ◽  
Tomato Yield ◽  
Structural Functions ◽  
Randomized Design ◽  
Silicon Fertilization

Silicon has been used in crop management programs, under the premise that it participates in the hardening of plant cell walls. In this sense, this research has been implemented in order to know how much silicon influences the quality of tomato fruit, given that this element theoretically fulfills metabolic and structural functions in the physiology of plants, for which, in this study, the effect of various doses of silicon on tomato yield was evaluated, using silicon dioxide as a source. The trial was established under a completely randomized design, with four treatments or doses of Silicon (0, 20, 40 and 60 g/plants as SiO2). The silicon was added 20 days before sowing, the crop management was done with cultural practices. Performance components were evaluated. It was found that the silicon fertilization did not influence the yield components, on the contrary, it hints that the applied silicon doses can affect the decrease of the yields of this crop in acid soil conditions.

Assessment of locally produced waxing materials on the shelf life and fruit quality of two tomato varieties (Solanum lycopersicum)

2017 ◽  
Vol 4 (1) ◽  
pp. 36-47
Author(s):  
R. Osae G. Essilfie J. O. Anim
Keyword(s):  
Shelf Life ◽  
Tomato Fruit ◽  
Chemical Properties ◽  
Storage Period ◽  
Cassava Starch ◽  
Soluble Solids ◽  
Shea Butter ◽  
Tomato Fruits ◽  
Randomized Design ◽  
Colour Development

The study was conducted to assess the effect of different waxing materials on the quality attributes of tomato fruits. A 2 x8 factorial experiment layout in complete randomized design with 16 treatment combinations and 3 replication was adopted.The materials that were used for the experiment are two (2) varieties of tomatoes (Pectomech and Power Rano) and seven(7) waxing material (shea butter, cassava starch, beeswax, and a combination of shea butter + cassava starch, shea butter + beeswax, cassava starch + beeswax, shea butter + cassava starch + beeswax) and a control. Results from the experiment indicated that all waxing treatments delayed the development of weight loss, firmness, pH, total soluble solids, and total titrable acidity. The results also suggested that edible wax coatings delayed the ripening process and colour development of tomato fruits during the storage period and extended the shelf life. However Beewax treatment and its combinations performed better than the other treatments. It was therefore recommended that locally produced wax such as Beewax, Shea butter, Cassava Starch treatments and their combinations could be a good technology for preserving the quality and extending the shelf life of fresh tomato fruit as well as maintaining the physical and chemical properties.

Research on the Morphological of Lead and Zinc in the Smelting Slag

2015 ◽  
Vol 1088 ◽  
pp. 200-205
Author(s):  
Lin Yu ◽  
Dong Wei Li
Keyword(s):  
Heavy Metals ◽  
Sequential Extraction ◽  
Ecological Risk ◽  
Total Content ◽  
Residual Fraction ◽  
Bcr Sequential Extraction ◽  
Lead And Zinc ◽  
Smelting Slag ◽  
Reducible Fraction

In this paper analysed the forms of heavy metals (Zn Pb Cd and As) of the Smelting Slag for Lead and Zinc,using BCR sequential extraction. Different chemical morphological of heavy metals have different activity and harmfulness. Migration and Utilization of heavy metals were decided by the existent form of heavy metals in the soil,which influenced Bioactivity and Toxicity. The results show that the main forms of Zn and Cd are Oxidizable and Residual fraction, and Pb mainly occurred in Oxidizable and Reducible fraction. however, As mainly occurred in Residual fraction, which the percentage of reachs 99.56%. According to the percentage of fractions extracted in total content (As is 0.44%, Zn is 14.7%, Pb is 85.98%, Cd is 48.86%),the latent ecological risk of heavy metals varied in the descending order of,Pb Cd Zn and As.

scholarly journals Buzz-Pollinated Crops: A Global Review and Meta-analysis of the Effects of Supplemental Bee Pollination in Tomato

2021 ◽  
Author(s):  
Hazel Cooley ◽  
Mario Vallejo-Marín
Keyword(s):  
Meta Analysis ◽  
Tomato Fruit ◽  
Economic Benefits ◽  
Fruit Weight ◽  
Food Crops ◽  
Bee Pollination ◽  
Solanum Lycopersicum L ◽  
Tomato Yield ◽  
Pollination Control ◽  
Supplemental Pollination

Abstract Buzz-pollinated plants require visitation from vibration producing bee species to elicit full pollen release. Several important food crops are buzz-pollinated including tomato, eggplant, kiwi, and blueberry. Although more than half of all bee species can buzz pollinate, the most commonly deployed supplemental pollinator, Apis mellifera L. (Hymenoptera: Apidae; honey bees), cannot produce vibrations to remove pollen. Here, we provide a list of buzz-pollinated food crops and discuss the extent to which they rely on pollination by vibration-producing bees. We then use the most commonly cultivated of these crops, the tomato, Solanum lycopersicum L. (Solanales: Solanaceae), as a case study to investigate the effect of different pollination treatments on aspects of fruit quality. Following a systematic review of the literature, we statistically analyzed 71 experiments from 24 studies across different geopolitical regions and conducted a meta-analysis on a subset of 21 of these experiments. Our results show that both supplemental pollination by buzz-pollinating bees and open pollination by assemblages of bees, which include buzz pollinators, significantly increase tomato fruit weight compared to a no-pollination control. In contrast, auxin treatment, artificial mechanical vibrations, or supplemental pollination by non-buzz-pollinating bees (including Apis spp.), do not significantly increase fruit weight. Finally, we compare strategies for providing bee pollination in tomato cultivation around the globe and highlight how using buzz-pollinating bees might improve tomato yield, particularly in some geographic regions. We conclude that employing native, wild buzz pollinators can deliver important economic benefits with reduced environmental risks and increased advantages for both developed and emerging economies.

Removal of heavy metals in a flow‐through vertical microbial electrolysis cell

2019 ◽  
Vol 97 (10) ◽  
pp. 2608-2616 ◽  
Author(s):  
Louis‐B. Jugnia ◽  
Dominic Manno ◽  
Meghan Hendry ◽  
Boris Tartakovsky
Keyword(s):  
Heavy Metals ◽  
Electrolysis Cell ◽  
Microbial Electrolysis Cell ◽  
Removal Of Heavy Metals ◽  
Flow Through ◽  
Microbial Electrolysis
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