scholarly journals Boron-zinc interaction in the absorption of micronutrients by cotton

2018 ◽  
Vol 36 (1) ◽  
pp. 51-57
Author(s):  
Érica De Oliveira Araújo ◽  
Elcio Ferreira Dos Santos ◽  
Marcos Antonio Camacho
Keyword(s):  
Experimental Design ◽  
Nutrient Solution ◽  
Absorption Efficiency ◽  
Transport Efficiency ◽  
Cu Content ◽  
Fe Content ◽  
Cotton Plants ◽  
Fe And Mn ◽  
Randomized Experimental Design ◽  
Mn Content

B-Zn interaction modifies the nutritional dynamics of copper (Cu), iron (Fe) and manganese (Mn) in cotton. The main objective of this research was to evaluate the effect of B and Zn concentrations on the absorption of Cu, Fe and Mn in cotton plants grown in a nutrient solution. A completely randomized experimental design with three replicates was performed, in a 4×5 factorial scheme, corresponding to four concentrations of B (0, 20, 40 and 80 μM L-1) and five concentrations of Zn (0, 1, 2, 4 and 8 μM L-1). At 115 days after emergence, the plants were collected, divided into roots, shoots and fruits, and chemically analyzed. The results allowed to conclude that the Cu content and total Cu in the fruit, total Cu in the roots, Cu efficiency, Fe content in the roots, Fe absorption efficiency, Mn content in the fruit, and Mn absorption efficiency of cotton are influenced by the concentrations of B in the solution. The interaction between B and Zn affected the total Fe in the roots, Fe content and total Fe content in the fruit, Fe transport efficiency, total Mn in the shoots and Mn transport efficiency. In addition, Zn acts differently according to the supply of B and vice versa. 

scholarly journals Freshwater Molluscs as Bioindicator of Fe and Mn Contamination in Lematang River, South Sumatera, Indonesia

2018 ◽  
Vol 68 ◽  
pp. 01016
Author(s):  
Novin Teristiandi
Keyword(s):  
Heavy Metal ◽  
Sampling Site ◽  
Suspended Solid ◽  
Sampling Area ◽  
Freshwater Molluscs ◽  
Naturally Occurring ◽  
Fe Content ◽  
Metal Contents ◽  
Fe And Mn ◽  
Mn Content

Heavy metal in river come mainly from naturally occurring geochemical materials. However, human activities has enhanced concentration of heavy metal such as coal mine in the case of pollution in Lematang River. The high suspended solid loads in the river can remove most soluble metals from the water and trapped them in the bottom sediment. Freshwater molluscs were collected 3 sampling site, Lahat (ST1) as reference site, and polluted rivers of West Merapi (ST2) and East Merapi (ST2). Freshwater molluscs were analysed for the heavy metal contents in tissue. Relationships of the heavy metal in sediment to the heavy metal content in molluscs was performed using SPSS 24. Thiara scabra was the most abundant taxa in sampling area. Concentration of Fe and Mn in sediment has no significant effect on the Fe content in mollusc tissues. Molluscs appeared to more sensitive to higher Mn content. This study did not clearly show molluscs as a bioaccumulator for metal. Nonetheless, Thiara scabra were common, abundant, easily sampled and it is a useful choice as bioindicator in Lematang river for future study.

Screening of Bush Type French Bean (Phaseolus vulgaris L.) Accessions for Micronutrient Variations and Characterization of Selected Genotypes using Micronutrient Content Linked Markers

2021 ◽  
Author(s):  
M.N. Mamathashree ◽  
S. Shyamalamma
Keyword(s):  
Ssr Markers ◽  
Crop Improvement ◽  
Morphological Characterization ◽  
French Bean ◽  
Poor People ◽  
Cu Content ◽  
Fe Content ◽  
Genomic Ssr ◽  
Mn Content ◽  
Local Genotypes

Background: French bean or kidney bean is a rich source of protein, fibers and minerals in diet and is used by poor people in several Asian countries as a cheap source of protein and mineral vegetable/seed grain. Thus, the study on micronutrient variations in French bean local genotypes was undertaken to screen for Fe, Zn, Cu and Mn content in comparison to developed varieties. Methods: Selected twenty local genotypes/accessions and four released varieties of French bean were grown in the field. The morphological characterization was carried out as per crop descriptors. The micronutrient analysis for Fe, Zn, Mn and Cu content was carried out using AAS. Further, accessions were screened using fourteen SSR markers linked to Fe and Zn content.Result: The results revealed that accession IC342273 exhibited significantly higher dry pod (58.94 g) and seed yield (809.74 g) per plot. The accession IC538420 (177.31 ppm) exhibited significantly higher mean Fe content and was on par with Arka Suvidha (176 ppm). Accession EC500226 showed significantly higher Zn (26.91 ppm), Mn (15.31 ppm) and Cu (8.55 ppm) content over other accessions and varieties. Among fourteen SSR primers amplified, two genomic SSR markers (BM154 and BM211) exhibited higher polymorphism among the accessions. The SSR markers classified the accessions and varieties into two clusters, which can be used in crop improvement programmes on French bean for micronutrients bio-fortification studies.

scholarly journals PENURUNAN KADAR Fe DAN Mn PADA AIR SUMUR GALI DENGAN AERASI GELEMBUNG UDARA DI DESA SIDING KECAMATAN BANCAR KABUPATEN TUBAN

2014 ◽  
Vol 12 (1) ◽  
pp. 35-42
Author(s):  
Indarti Trisetyani ◽  
Joko Sutrisno
Keyword(s):  
Quality Standards ◽  
Well Water ◽  
Clean Water ◽  
Health Minister ◽  
Water Quality Standards ◽  
Air Supply ◽  
Fe Content ◽  
Fe And Mn ◽  
Mn Content ◽  
The Village

Wells water in the village of Siding, Bancar, Tuban contains Fe and Mn more thanmaximum limit allowed by the health minister number 416/Menkes/PER/IX/1990, for level of Fe inthe clean water should not be more than 1,0 mg/l and Mn 0,5 mg/l. This research aims to reducethe content of Fe and Mn in wells water with bubbles aeration so that will meet quality standards ofclean water, to find the length of time and effective aeration and decreased Fe and Mn fromtreatment with bubbles aeration. The research is done using a plastic tub of aeration, air supply isdone by pumping water size 17 w and nozle size 1,5 mm by the time variation 20, 40 and 60minutes.  Sampling was performed 3 times for each treatment, than analyzed in the laboratory toknow the decrease levels of Fe and Mn. The results of research showed that the levels of Fe andMn were high in well water very good to treatment by bubbles aeration. The beginning of level Fe3,1 mg/l and Mn 0,87 mg/l, after aerated Fe level in water is 0,0037 mg/l and Mn 0,0491 mg/l (appropriate water quality standards). Average decreased of Fe content after the  bubbles aeratedfrom 20 minutes at 90 %, 40 minutes at 96 %, 60 minutes at 95 % and Mn content after aerated for20 minutes decreased 51 %, 40 minutes 54 %, 60 minutes 75 %.

scholarly journals Occurrence and correction of lime-induced chlorosis in petunia plants

2011 ◽  
Vol 57 (No. 4) ◽  
pp. 180-185 ◽  
Author(s):  
F. Šrámek ◽  
M. Dubský
Keyword(s):  
Growth Rate ◽  
Plant Growth ◽  
Chlorophyll Content ◽  
Nutrient Solution ◽  
Dolomitic Limestone ◽  
Plant Leaves ◽  
Micronutrient Uptake ◽  
Fe And Mn ◽  
Mn Content ◽  
Substrate Ph

The effect of various concentrations and ratios of iron (Fe) and manganese (Mn) chelates on growth, micronutrient uptake and chlorophyll content was investigated in a glasshouse experiment using potted petunia plants. The plants were cultivated in a peat substrate amended with dolomitic limestone at rate of 3.0 g/L (control substrate) or 12.0 g/L. The higher rate was established both to restrict the uptake of Fe, Mn and other nutrients and also to test the effectiveness of various Fe and Mn treatments. The plants in all the treatments were fertigated at weekly intervals with a nutrient solution containing macronutrients and micronutrients. Various chelate forms of Fe and Mn were used with the exception of two treatments where these two elements were omitted. The effects of different substrate pH levels (derived from different limestone contents) had a large effect on plant growth, chlorophyll content and content of Fe and Mn accumulated in the plant leaves. The plants in the high-limestone substrate devoid of Fe and Mn had reduced growth and lower chlorophyll content. They also had lower leaf Fe and Mn content than the control plants in the R3 substrate. Regular fertigation with a nutrient solution containing Mn and Fe improved plant growth rate and also increased chlorophyll content. However, its efficiency depended on the chelate form and concentration used. The effect of chelate application on the Fe and Mn leaf content was unclear as it only marginally increased leaf Fe absorption in some treatments. No effect of the various Fe/Mn ratios was observed.

scholarly journals Efeito de subdoses de 2,4-D sal colina na eficiência quântica do fotossistema II do algodoeiro

2020 ◽  
Vol 16 (2) ◽  
pp. 60-71
Keyword(s):  
Experimental Design ◽  
Quantum Yield ◽  
Photosystem Ii ◽  
Average Rate ◽  
Yield Potential ◽  
Phenological Stages ◽  
Cotton Plants ◽  
Randomized Experimental Design ◽  
Kinetics Of ◽  
Salt Formulation

Deleterious effects of herbicides on the photochemical apparatus of plants can be quantified by studying the quantum yield potential of photosystem II (Fv/Fm). Therefore, the objective of this work was to evaluate the effect of subdoses of the herbicide 2,4-D choline salt formulation on the quantum efficiency of the photosystem II of cotton plantsat different phenological stages. The study adopted a completely randomized experimental design with seven replications, and the treatments consisted of nine fractions of the average rate indicated on the 2,4-D choline salt herbicide label: 0 (control); 0.4275; 0.855; 1.71; 3.42; 8.55; 17.1; 34.2 and 68.4 g ae ha-1applied at phenological stages V4 or B4 of cotton plants. The plants were evaluated for the visual symptoms of injury and the emission kinetics of maximum chlorophyll a (Fv/Fm) fluorescence at 3, 7 and 14 days after application (DAA) of the herbicide. The values obtained were analyzed by the F test and the effects of the treatments were compared by the Scott-Knott test at 5% probability. The data obtained from visual injury and Fv/Fmwere also submitted to Pearson's correlation. The correlation between visual injury and Fv/Fmin the V4 and B4 stages is negative and significant for both years of conducting the experiment. The Fv/Fmvariable was not affected by the application of subdoses lower than 3.42 g aeha-1of 2,4-D saline choline in the V4 stage and below 1.71 g aeha-1in the B4 stage of the cotton plant.

scholarly journals ACCUMULATION AND PARTITION OF Fe, Zn, Cu, Mn AND Na IN MACRO AND MICRONUTRIENT-DEFICIENT COWPEA PLANTS

2017 ◽  
Vol 7 (2) ◽  
pp. 1036-1043
Author(s):  
Rafael de Souza Miranda ◽  
Fabricio Bonfim Suderio ◽  
Elton Camelo Marques ◽  
Eneas Gomes-Filho
Keyword(s):  
Nutrient Solution ◽  
Animal Feed ◽  
Dry Mass ◽  
Plant Organ ◽  
Food Animal ◽  
Cowpea Seeds ◽  
Fe Content ◽  
Mn Content ◽  
Acclimatization Period ◽  
Complete Nutrient Solution

Cowpea (Vigna unguiculata) is an important crop for people living in the semi-arid tropics where it is used as food, animal feed and forage. Researches related to nutritional status of plants are important, principally in crops commonly grown in nutrient-poor soils. This study aimed to analyze the growth and accumulation/distribution of some micronutrients in cowpea plants submitted to macro and micronutrient deficiency. Cowpea seeds were germinated in grit and after five days, ten uniform seedlings were transferred to complete nutrient solution for an acclimatization period. After three days, the plants were  grown in nutrient solution containing all macro and micronutrients or in nutrient solution  without N, Ca, K, Mg, P, S, Fe, B or aeration. In all case, omission of mineral nutrients and  the aeration caused reductions in the dry mass of cowpea plants, except for B; however, the absence of Ca was the most limiting for plant growth. Interestingly, the root Fe content significantly increased in Mg-, P- and S-deficient plants. Yet, Fe-deficient plants displayed a significant increase in Cu and Mn content, regardless of plant organ. Our data clearly demonstrate that the Ca is the most important nutrient for V. unguiculata growth, followed by N and Fe. The accumulation and partition of Fe, Zn, Cu and Mn in cowpea vary differentially  in root, stem and leaf as affected by nutritional deficiency.

scholarly journals Uptake of Cu, Zn, Fe and Mn by maize in the strip cropping system  

2013 ◽  
Vol 59 (No. 7) ◽  
pp. 322-328 ◽  
Author(s):  
A. Głowacka
Keyword(s):  
Weed Control ◽  
Spring Barley ◽  
Cropping System ◽  
Control Methods ◽  
Cu Content ◽  
Micronutrient Uptake ◽  
Zn Content ◽  
Fe And Mn ◽  
Mn Content ◽  
The Impact

A field experiment was conducted in 2008–2010 at the Experimental Station of the Faculty of Agricultural Sciences in Zamość (50°42'N, 23°16'E), University of Life Sciences in Lublin. The aim of the study was to assess the impact of cropping method and weed control methods on the content of Cu, Zn, Fe and Mn in maize and on their uptake. Two cropping methods were studied – sole cropping and strip cropping (common bean, dent maize and spring barley in adjacent strips) and two weed control methods – mechanical and chemical. Strip cropping reduced Mn content in maize, did not significantly affect Zn content, and increased accumulation of Cu and Fe. The content and uptake of the elements by maize depended on the position of the row in the strip and on the adjacent plant species. Placement next to beans resulted in higher Fe and Zn content, while placement next to barley increased Cu content. The highest Mn content was noted in maize from the centre row. In general, micronutrient uptake by maize was lowest in the middle row. These results indicate that strip cropping can be an effective agricultural practise for plant biofortification.

scholarly journals Growth and development of lettuce plants at high NH4+:NO3- ratios in the nutrient solution

2006 ◽  
Vol 24 (3) ◽  
pp. 352-355 ◽  
Author(s):  
Jerônimo L Andriolo ◽  
Rodrigo dos S Godoi ◽  
Clarissa M Cogo ◽  
Orcial C Bortolotto ◽  
Gean L da Luz ◽  
...  
Keyword(s):  
Experimental Design ◽  
Nutrient Solution ◽  
Growth And Development ◽  
Crop Production ◽  
Dry Mass ◽  
Fresh Weight ◽  
Total N ◽  
Randomized Experimental Design ◽  
Number Of Leaves ◽  
Polynomial Models

Lettuce plants, cv. Vera, were grown at five NH4+:NO3- ratios in the nutrient solution in a 0.15 m deep sand growing bed. A standard nutrient solution was used, with the composition of, in mmol L-1, 11.0 NO3-; 1.5 H2PO4-; 6.5 SO4--; 7.5 Ca++; 10.0 K+ and 1.5 Mg++, and, in mg L-1, 0.42 Mn; 0.26 Zn; 0.05 Cu; 0.50 B; 0.04 Mo, and 4.82 chelate Fe. Ammonium nitrate was used to supply NH4+ concentrations of 2.5; 5; 7.5 and 10 mmol L-1, reaching NH4+:NO3- ratios of 0:11 (T1); 2.5:13.5 (T2); 5:16 (T3); 7.5:18.5 (T4) and 10:21 mmol L-1 (T5) as treatments. A completely randomized experimental design was used, with four replications and 20 plants per plot. Four plants of each plot were harvested at 25 days after planting, to determine shoot and root dry mass, shoot fresh weight and number of leaves per plant. Number of leaves, shoot fresh and shoot and root dry mass decreased 25.5%; 52.5% and 68.5% from T1 to T5, respectively, following polynomial models. Root dry mass was 1.7 g/plant for T1 and T2, and 0.82 g/plant for T3, T4 and T5, decreasing in a proportion of 51.8%. For lettuce crop production in hydroponical facilities, the NH4+ threshold limit of about 9-12% of the total N should be retained.

PENGARUH KONSENTRASI RAGI Saccharomyces cerevisiae DAN LAMA FERMENTASI TERHADAP KUALITAS CUKA TOMI-TOMI (Flacourtia inermis)

2015 ◽  
Vol 4 (2) ◽  
pp. 50-55
Author(s):  
Sandra J Nendissa ◽  
Rachel Breemer ◽  
Nikholaus Melamas
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Experimental Design ◽  
Total Dissolved Solids ◽  
Total Sugar ◽  
Dissolved Solids ◽  
Randomized Experimental Design ◽  
Two Factors ◽  
Four Levels

This objectives of this research were both to study and determine the best level of concentration of yeast Saccharomyces cereviseae and period of fermentation on the quality of tomi-tomi vinegar (Flacourtia inermis). A completely randomized experimental design with two factors of treatment was applied in this research. The first factor was concentration of yeast S. cereviseae having four levels of tretament, i.e.: without the addition of yeast 0.5, 1 and 1.5 g yeast. The second factor was period fermentation with 1, 2, 3, 4, and 5 weeks. The result indicated that the concentration of yeast S. cereviseae 1.5 g and period fermentation 5 week produced a good tomi-tomi vinegar with total acids 51.22%, total dissolved solids 8.35, total sugar 8.07% and pH 5.40.

scholarly journals Cultivation of gerbera irrigated with treated domestic effluents

2010 ◽  
Vol 14 (6) ◽  
pp. 582-588 ◽  
Author(s):  
Lisânea M. O. Damasceno ◽  
Aderson S. de Andrade Júnior ◽  
Hans R. Gheyi
Keyword(s):  
High Temperature ◽  
Experimental Design ◽  
Relative Humidity ◽  
Plant Development ◽  
Leaf Growth ◽  
Treated Wastewater ◽  
Nutritional Requirements ◽  
Randomized Experimental Design ◽  
Growth Production ◽  
Domestic Effluents

This paper evaluates the nutritional impact on growth, production and quality variables of gerbera crop when fertigated with treated domestic effluents. An experiment was carried out in greenhouse at the Embrapa Meio-Norte in Teresina, in the State of Piauí, Brazil, from July to October 2007. A completely randomized experimental design with five treatments and five replications was adopted. The treatments investigated were T1 - 100% of water and nutritional requirements of crop were met with chemical fertigation (N e K2 O); T2 - 25% volume of water through fertigation and 75% treated wastewater effluents (TWE); T3: 50% volume of water through fertigation and 50% TWE; T4: 75% volume of water with fertigation and 25% TWE; and T5 - 100% volume of water supplied through TWE. Leaf growth and plant development were favored by the application of 50% fertigation and 50% TWE (T3). As for commercial requirements, the best results for number of flowers were obtained with T4. However, concerning quality, T2 produced flowers in July and August with longer stems, but in the months of September and October, no treatment achieved this standard due to high temperature and low relative humidity of the air in the region.

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