scholarly journals Use of some biostimulants to improve the growth and chemical constituents of sweet pepper

10.5219/1131 ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 553-561
Author(s):  
Rabab Maraei ◽  
Noha Eliwa ◽  
Amina Aly
Keyword(s):  
Organic Acids ◽  
Fulvic Acid ◽  
Vegetative Growth ◽  
Foliar Application ◽  
Chemical Constituents ◽  
Chemical Properties ◽  
Sweet Pepper ◽  
Physical And Chemical ◽  
Better Than ◽  
And Chemical Properties

The experiment was conducted during two successive seasons 2016 and 2017 on sweet pepper plants to study the effect of foliar application of some natural extracts (fulvic acid at 2, 4 and 6% or algae at 1, 2 and 4 g.L-1) were applied three times along each season (after 2, 4 and 6 weeks of planting). The influence was evaluated through the response of vegetative growth, and some physical and chemical characteristics of sweet pepper fruits. The results obtained showed that the algae extract at 1 g.L-1 in most cases was better than the other spray treatments investigated to improve most fruit characteristics (length, diameter and yield of fruits), vegetative growth, and chemical properties followed by 6% fulvic acid. With regard to organic acids, malic and citric acids are the main organic acids found in sweet pepper. Malic, succinic and glutaric acids were higher in 1 g.L-1 algae extract treatment, but the concentration of citric acid was higher in 6% fulvic acid treatment. Therefore, algae extract and fulvic acid could be safely recommended as a natural biostimulants application for improving most desirable characteristics of sweet pepper grown under the same experimental condition.

Sustainable Urban Horticulture of Sweet Pepper via Vermicomposting in Summer Season

2014 ◽  
Vol 3 (1) ◽  
pp. 110-122
Author(s):  
Abul Soud ◽  
M. A., M. S. A. Emam ◽  
M. A. A. Abdrabbo ◽  
F. A. Hashem ◽  
Shaimaa H. Abd-Elrahman
Keyword(s):  
Vegetative Growth ◽  
Chemical Properties ◽  
Sweet Pepper ◽  
Summer Season ◽  
Growth And Yield ◽  
Peat Moss ◽  
Physical And Chemical Properties ◽  
Physical And Chemical ◽  
Urban Horticulture ◽  
And Chemical Properties

The need for extend the urban horticulture to cover the food security demands, to mitigate CO2 emissions and avoid the extreme heat waves drive this study to investigate the ability of using soilless culture systems, vermicomposting technology and net cover in producing vegetables in urban area in summer season. The aim of this study was to determine the effect of different vermicompost rates mixed with the standard substrate peat moss: perlite (perlite: peat moss: vermicompost (45:45:10) (Mix.10%), perlite: peat moss: vermicompost (40:40:20) (Mix.20%), perlite: peat moss: vermicompost (35:35:30) (Mix.30%) and perlite: peat moss (50:50 V/V) (Control) under three microclimate conditions (plants covered with black net, white net and without cover) on vegetative growth and yield of sweet pepper (Capsicum annuum L. cv. Reda) grown in pots culture during summer seasons of 2012 and 2013 at the Central Laboratory for Agricultural Climate, Agricultural Research Center, Dokki, Giza Governorate. Physical and chemical properties of substrates, vegetative growth and yield characteristics, agrometerological data and mineral contents were determined. The obtained data indicated that vermicomposting could contribute in mitigate CO2 emission, save the essential nutrients and energy via recycling the urban organic wastes to vermicompost. The physical and chemical properties were affected by vermicompost. The best vegetative growth and yield of sweet pepper were given by (Mix.20%) vermicompost mixture followed by (Mix.10%) and (Mix.30%) vermicompost mixture. There were also significant differences between cover net treatments in affecting vegetative growth and yield of pepper, the white net was superior for producing pepper during the summer season; while the black net gave the lowest plant growth and yield. The best treatment was (Mix.20%) vermicompost mixture with white net cover, while the lowest vegetative growth and yield were obtained by (Control) vermicompost mixture with black cover net during the two tested seasons. These results suggested that vermicomposting and green roof can be used in urban area for producing food instead of incineration the urban organic wastes or imported food from rural area and using white cover net to improve the pepper growth and productivity during summer season.

A COMPARISON OF VARIOUS MEANS OF MEASURING THE DEGREE OF DECOMPOSITION OF VIRGIN PEAT MATERIALS IN THE CONTEXT OF THEIR RELATIVE BIODEGRADABILITY

1979 ◽  
Vol 59 (4) ◽  
pp. 397-400 ◽  
Author(s):  
M. P. LÉVESQUE ◽  
S. P. MATHUR
Keyword(s):  
Chemical Properties ◽  
Fiber Content ◽  
Physical And Chemical Properties ◽  
Physical And Chemical ◽  
Better Than ◽  
And Chemical Properties

Eleven physical and chemical properties of 26 peat materials from a total of five virgin profiles were determined and statistically analyzed for correlations among attributes that relate to the degree of decomposition, and with the rates at which the materials biodegraded. Estimation of fiber content made routinely by pedologists in the field correlated with relative, biodegradability better than any other criterion of decomposition and humification.

scholarly journals The Characteristics of Buffalo Hide as Raw Material for Gelatin Production

2017 ◽  
Vol 3 (2) ◽  
Author(s):  
Sri Mulyani ◽  
F.M.C. Sigit Setya Budi ◽  
Yudi Pranoto ◽  
Umar Santoso
Keyword(s):  
Chemical Properties ◽  
Gel Strength ◽  
Raw Material ◽  
Physical And Chemical Properties ◽  
Hydroxyproline Content ◽  
Collagen Density ◽  
Physical And Chemical ◽  
Better Than ◽  
And Chemical Properties

This study was aimed to observe the physical and chemical properties of buffalo hide as raw material for gelatin production by pretreatment using alkali-acid. Buffalo hide was observed on three sections, i.e. back (butt/croupon), abdomen (belly) and shoulder. The physical properties of the hide were analysed through the measurement of hide thickness, whereas the chemical properties were analysed by determining the proximate and amino acid composition. The qualities of gelatin (gel strength, viscosity and pH) were compared to standard commercial gelatin and Gelatin Manufactures Institute of America (GMIA). Gelatin extraction was done using a combination pretreatment alkali (0.5M NaOH) and acid (0,9M HCl). The results showed that butt section had collagen density was best compared to shoulder and belly. The thickness of butt (10.219 ± 0.318 mm) smaller than the shoulder (11.365 ± 0.389 mm), but thicker than the belly. The protein and hydroxyproline content on the butt was the highest, resulting the value 27.517 ± 0.049% and 97.330 ± 0.331 ppm, respectively. Extraction using 0.9 M hydrochloric acid produced yield 29.17 ± 2.12%. The gel strength 242.35 ± 12.90 g Bloom, viscosity 16.37 ± 1.5 cp and pH 5.15 ± 0.05. The gelatin quality meets the standards of quality of GMIA (2012) even better than commercial gelatin.

Study on Decolorization of Sugar Cane Juice Using Activated Carbons

2012 ◽  
Vol 529 ◽  
pp. 376-379
Author(s):  
Zhen Fa Zhang ◽  
Guang Shan Mu ◽  
Jin Yun Peng ◽  
Meng Zhou ◽  
Hao Wen ◽  
...  
Keyword(s):  
Sugar Cane ◽  
Activated Carbons ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Cane Juice ◽  
Decolorization Efficiency ◽  
Sugar Cane Juice ◽  
Physical And Chemical ◽  
Better Than ◽  
And Chemical Properties

Sugar cane juice decolorization was studied using four commercial activated carbons. In an attempt to relate decolorizing performances to the characteristics, reaction time and temperature, the color removal capabilities of activated carbons were measured. The four commercial activated carbons showed different decolorization efficiencies, which could be related to their physical and chemical properties. The decolorization efficiency of powdered activated carbon was much better than the others.

High Quality Al2O3-ZrO2-C Slide Gate Properties Adding Si-Fe Sintered by both Nitrogen and Carbon Monoxide Atmosphere

2011 ◽  
Vol 194-196 ◽  
pp. 1542-1546
Author(s):  
Lei Liu ◽  
Yong Li ◽  
Ya Wei Zhai ◽  
Wen Dong Xue ◽  
Jun Hong Chen
Keyword(s):  
Carbon Monoxide ◽  
Slide Gate ◽  
Chemical Properties ◽  
Fine Powder ◽  
Physical And Chemical Properties ◽  
High Quality ◽  
Physical And Chemical ◽  
Flowing Atmosphere ◽  
Better Than ◽  
And Chemical Properties

The Si-Fe (≤0.043 mm) fine powder was added to the Al2O3-ZrO2-C slide gate, and the influences of adding different Si-Fe contents (2wt%, 4wt%, 6wt%, 8wt%) are studied. Two different firing ways of nitridation and carbonazation atmosphere were used. The experimental results indicated that the addition of Si-Fe improve the physical and chemical properties of the slide gate, the performance is the best when the addition of Si-Fe is 6wt% and the properties of slide gate sintering in N2-flowing atmosphere is better than that in CO-flowing atmosphere. Si-Fe will react with nitrogen and generate Si3N4 in the N2-flowing atmosphere, while it will react with C or CO to produce SiC in CO atmosphere.

Fire-Resistant Fluids for General Hydraulic and Steam Turbine Systems

1967 ◽  
Vol 182 (1) ◽  
pp. 109-134 ◽  
Author(s):  
A. C. M. Wilson
Keyword(s):  
Power Plant ◽  
Physical Properties ◽  
Chemical Stability ◽  
Chemical Properties ◽  
Phosphate Esters ◽  
Physical And Chemical Properties ◽  
Corrosion Properties ◽  
Physical And Chemical ◽  
Better Than ◽  
And Chemical Properties

Major items of C.E.G.B. power plant are now being designed to operate at high steam temperatures and hydraulic pressures. In consequence, the risk of fires due to leaking petroleum lubricants is increasing. Suitable fire-resistant (f.r.) fluids are therefore desirable. Some of these have, however, given rise to difficulties in service due to changes in their physical and chemical properties. The physical properties of non-aqueous synthetic f.r. fluids (i.e. phosphate esters and chlorinated diphenyls) have been surveyed, and their chemical stability and anti-corrosion properties determined. Whilst the physical properties of the phosphate esters are better than those of the chlorinated diphenyls the chemical stability and corrosion properties are much worse.

scholarly journals Influence of Jackfruit Pulp on the Quality and Shelf Life of Jackfruit Cake

2015 ◽  
Vol 8 (1) ◽  
pp. 59-64 ◽  
Author(s):  
MA Haque ◽  
R Begum ◽  
AZ Shibly ◽  
MM Sultana ◽  
A Khatun
Keyword(s):  
Statistical Analysis ◽  
Chemical Properties ◽  
Sensory Attributes ◽  
Physical And Chemical Properties ◽  
Fruit Pulp ◽  
Overall Acceptability ◽  
Physical And Chemical ◽  
Quality And Shelf Life ◽  
Better Than ◽  
And Chemical Properties

This study was designed to develop cakes incorporating jack-fruit pulp. The seed free jackfruit bulbs blend were used at the level of 10%, 20%, 30% and 40% to prepare jackfruit cake The physical and chemical properties of cakes were analyzed and compared with plane cake (without jack-fruit pulp).The cake containing 10% jack-fruit pulp was best among the samples on the basis of rust and crumb colour and texture of the cakes..The flavours of the cake containing 20% jack-fruit pulp were better than other cakes. The statistical analysis of organoleptic test response of sensory attributes revealed that colour, flavour, taste, texture and overall acceptability werehigher in the cakes containing 10% and 20% jackfruitpulp than normal cake.Shelf life of jack-fruitcakes were decreased with the increased level of substitution of jackfruit pulp during seven day storage on the basis of microbial count.Cake containing 10% jack-fruit showed acceptable physical characteristics, sensory attributes and microbial load.J. Environ. Sci. & Natural Resources, 8(1): 59-64 2015

Sign in / Sign up

Export Citation Format

Share Document