scholarly journals Production and quality of mini watermelon cv. Smile irrigated with saline water

2016 ◽  
Vol 20 (10) ◽  
pp. 897-902 ◽  
Author(s):  
Alan B. O. de Sousa ◽  
Sérgio N. Duarte ◽  
Osvaldo N. de Sousa Neto ◽  
Ana C. M. Souza ◽  
Pedro R. F. Sampaio ◽  
...  
Keyword(s):  
Experimental Design ◽  
Salt Tolerance ◽  
Dry Matter ◽  
Saline Water ◽  
Chemical Characteristics ◽  
Physical And Chemical Variables ◽  
Number Of Leaves ◽  
Physical And Chemical ◽  
Number Of Branches

ABSTRACT The purpose of this study was to evaluate the salt tolerance of mini watermelon (cv. Smile). The experiment was carried out in the greenhouse of the Department of Biosystems Engineering of ESALQ/USP. The experimental design was randomized blocks. The plants were irrigated with five levels of salinity (S1 = 1.0; S2 = 2.0; S3 = 3.0; S4 = 4.0 and S5 = 5.0 dS m-1). At 85 days after the beginning of the experiment, the plants and the physical and chemical variables of the fruit were evaluated. Salinity negatively affected the variables: length of the main stem, stem diameter, number of leaves, number of branches, leaf area, fresh and dry matter. Regarding the physical and chemical characteristics of fruits, salinity reduced the mass, diameter and the pH of the fruit, but increased its vitamin C content. In general, the results suggest that the mini watermelon (cv. Smile) is moderately sensitive to salinity.

scholarly journals Safety and quality of farm fresh goat’s cheese in the Czech Republic

2010 ◽  
Vol 28 (No. 1) ◽  
pp. 1-8 ◽  
Author(s):  
B. Janštová ◽  
M. Dračková ◽  
Š. Cupáková ◽  
H. Přidalová ◽  
M. Pospíšilová ◽  
...  
Keyword(s):  
Czech Republic ◽  
Dry Matter ◽  
Titratable Acidity ◽  
Chemical Characteristics ◽  
Chemical Parameters ◽  
Salmonella Spp ◽  
The Czech Republic ◽  
Enterococcus Spp ◽  
Physical And Chemical

The composition and selected physical and chemical parameters of 44 samples of fresh goat cheeses produced on a farm in the Czech Republic were determined. The following average values were obtained for the parameters analysed: pH 4.87 &plusmn; 0.14, titratable acidity (SH) 98.09 &plusmn; 4.93, dry matter 46.83 &plusmn; 1.57%, fat in dry matter 52.74 &plusmn; 5.24%, sodium chloride (NaCl) 2.08 &plusmn; 0.54%, and a<sub>w</sub> 0.979 &plusmn; 0.007. All samples showed excellent sensory characteristics and their compositions corresponded to those declared by the producer. Microbiological tests were used for the detection of Enterobacteriaceae spp., lactic acid bacteria, Escherichia coli, Enterococcus spp., Staphylococcus aureus, Bacillus cereus, Salmonella spp. and Listeria monocytogenes. Under the applicable regulations, the analysed fresh goat&rsquo;s cheeses were microbiologically safe and had the appropriate physical and chemical characteristics.

scholarly journals Qualidade pós-colheita de beterraba submetida à adubação com biofertilizante fermentado

2015 ◽  
Vol 10 (3) ◽  
pp. 41 ◽  
Author(s):  
José Ricardo Tavares de Albuquerque ◽  
Anderson Dos Santos Formiga ◽  
Thayse Cavalcante da Rocha ◽  
Franciscleudo Bezerra da Costa ◽  
Ancélio Ricardo de Oliveira Gondim
Keyword(s):  
Experimental Design ◽  
Phenolic Content ◽  
Postharvest Quality ◽  
Chemical Characteristics ◽  
Uniform Size ◽  
Fermentation Time ◽  
Future Studies ◽  
Potential Alternative ◽  
Physical And Chemical

<p>O cultivo de beterraba com biofertilizante consiste em uma alternativa potencial para produção em escala familiar, sendo necessário, contudo avaliar a qualidade de produção. Assim objetivou-se avaliar a qualidade pós-colheita de beterraba submetida á adubação com biofertilizante fermentado. O experimento foi realizado na área experimental do Centro de Ciências e Tecnologia Agroalimentar da Universidade Federal de Campina Grande, Câmpus de Pombal-PB, durante o período de setembro a dezembro de 2013, em solo classificado como Argissolo Vermelho-Amarelo Câmbico. O delineamento experimental utilizado foi o inteiramente casualizado. Os tratamentos corresponderam à aplicação de dois tempos (20 e 40 dias de fermentação do biofertilizante) com três repetições. Foram utilizados seis tubérculos por parcela, selecionados conforme uniformidade de tamanho. Os tempos de fermentação do biofertilizante não influenciaram nas características físicas e químicas avaliadas, a exceção do teor de vitamina C e dos compostos fenólicos, que foram maiores para o biofertlizante fermentado até 40 dias e Íons H<sup>+ </sup>até 20 dias de fermentação. O uso de novas formulações de biofertilizante em estudos futuros será importante para melhor elucidar a influência deste modelo de adubação sobre a qualidade pós-colheita de beterraba.</p><p><strong><em>Beet postharvest quality subjected to fertilization with fermented biofertilizer</em></strong></p><p><strong>Abstract</strong><strong>: </strong>The beet cultivation with biofertilizer consists of a potential alternative to production in family scale, if necessary, but assess the quality of production. Thus aimed to evaluate the beet postharvest quality will undergo fertilization with fermented biofertilizer. The experiment was conducted in the experimental area at the Centre for Science and Agrifood Technology, Federal University of Campina Grande, Campus de Pombal-PB, during the period September to December 2013 in soil classified as Red-Yellow Cambic Argisol. The experimental design was completely randomized. The treatments were the application of two times (20 and 40 days of fermentation biofertilizer) with three replications. Six tubers per plot were used, selected according to uniform size. The biofertilizer fermentation time did not affect the physical and chemical characteristics evaluated, the exception of vitamin C and phenolic content which were higher biofertlizante fermented for up to 40 days and H<sup>+</sup> ions up to 20 days of fermentation. The use of new biofertilizer formulations will be important in future studies to further elucidate the influence of this fertilization model on post-harvest beet quality.</p>

scholarly journals Qualidade de cultivares de gérbera de vaso em diferentes granulometrias do substrato

2017 ◽  
Vol 23 (2) ◽  
pp. 172
Author(s):  
Amaralina Celoto Guerrero ◽  
Dirceu Maximino Fernandes ◽  
Fernanda Ludwig ◽  
Guilherme Amaral Ferreira
Keyword(s):  
Pine Bark ◽  
Quality Analysis ◽  
Chemical Characteristics ◽  
Gerbera Jamesonii ◽  
Stem Height ◽  
Paulo State ◽  
Golden Yellow ◽  
Number Of Leaves ◽  
Physical And Chemical

This research was conducted to evaluate the quality of pot gerbera in different granulometries of pine bark substrate. The experiment was carried out in protected environment, in the municipality of Botucatu, São Paulo state, Brazil. The experimental design was randomized blocks, in 5 x 2 factorial scheme (5 substrates and 2 cultivars) and 4 replicates. The substrate was pine bark separated into five granulometries [4-2 mm, 2-1 mm, <4 mm, <2 mm and <1 mm (approximate aeration percentage of 40, 35, 25, 20 and 10%, respectively)]. The utilized cultivars of gerbera (Gerbera jamesonii) were Cherry and Golden Yellow. The pots were subjected to quality analysis, in which possible consumers received a form to evaluate the pots regarding the overall aspect of leaves, inflorescences and general aspect of the pot. Then, the following variables were evaluated: number of leaves, plant diameter, stem height, stem diameter, capitulum diameter, number of inflorescences, dry phytomass of shoots and inflorescences and qualitative analysis. Plant quality was directly influenced by the physical and chemical characteristics promoted by the pine bark granulometries, with best results in the substrates with granulometries < 2 mm and < 1 mm

scholarly journals RESPONSE OF ORNAMNETAL ANNUALS TO SALINE WATER IRRIGATION

1970 ◽  
pp. 04-06
Author(s):  
D. DHANASEKARAN
Keyword(s):  
Saline Water ◽  
Randomized Design ◽  
Nacl Concentration ◽  
Flower Diameter ◽  
Salinity Levels ◽  
Number Of Leaves ◽  
Completely Randomized Design ◽  
Alternative Sources ◽  
Number Of Branches

Availability of fresh water is meager in expansion of gardening in all the countries. In many gardens, farm ponds are utilized for irrigation without analyzing the quality of the water. Alternative sources like ponds can be used for irrigation, but salinity will be a problem. Keeping this in mind an experiment was laid out in completely randomized design with three replications. Salinity was induced by adding NaCl of four different concentrations viz., 0.4 , 0.8, 1.2 and 1.6 % and was irrigated on alternative days on two ornamental flowering annuals viz., Zinnia and Petunia. Twenty days old seedlings were subjected to treatments as per the schedule with a control. Phenological observations viz., plant height, number of branches, number of leaves, earliness in flowering, number of flowers, flower diameter are observed at Initial, 40 and 55 days after sowing. From the results, it was found that plant growth reduced with the elevated NaCl concentration. Saline treated plants had earlier blooming upto 1.2%  and with the incaresed salinity levels, the plants falied to initiate flowering and started withering.

scholarly journals Physico Chemical Analysis of Sapota (Manilkara zapota) Coated by Edible Aloe Vera Gel

2015 ◽  
Vol 3 (1) ◽  
pp. 20-25 ◽  
Author(s):  
N. Padmaja ◽  
S. John Don Bosco ◽  
J. Sudhakara Rao
Keyword(s):  
Chemical Analysis ◽  
Aloe Vera ◽  
Ascorbic Acid Content ◽  
Chemical Characteristics ◽  
Manilkara Zapota ◽  
Aloe Vera Gel ◽  
Physico Chemical ◽  
Dramatic Decline ◽  
Physical And Chemical

The physical and chemical characteristics of the fruit have immense significance as they ultimately affect the quality of processed productsprepared from them. Over ripening of Sapota (Manilkara zapota) fruits at the post-harvest stage usually results in dramatic decline in quality.In the present study, physico chemical analysis (which includes Weight loss, Colour, Texture, TSS, pH, TA and Ascorbic acid content) ofedible Aloe vera gel coated Sapota fruits packed in LDPE and stored at 15 ± 2? were studied at regular intervals of 5 days i.e., 0th,5th, 10th,15thand 20th days. The dip treatment of Aloe vera gel coating 1:2, 7 minutes had best retained the physico chemical characteristics than the othertreatments performed and was found to be the most effective treatment in maintaining the fruit quality attributes along with the shelf lifeextension of about 20 days.DOI: http://dx.doi.org/10.3126/ijasbt.v3i1.11703 Int J Appl Sci Biotechnol, Vol. 3(1): 20-25      

scholarly journals Formation of ‘Crioula’ guava rootstock under saline water irrigation and nitrogen doses

2016 ◽  
Vol 20 (8) ◽  
pp. 739-745 ◽  
Author(s):  
Leandro de P. Souza ◽  
Reginaldo G. Nobre ◽  
Evandro M. da Silva ◽  
Geovani S. de Lima ◽  
Francisco W. A. Pinheiro ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Salt Stress ◽  
Experimental Design ◽  
Deleterious Effect ◽  
Saline Water ◽  
Dry Weight ◽  
Saline Water Irrigation ◽  
N Dose

ABSTRACT The objective of this research was to evaluate the growth and formation of fresh and dry weight of ‘Crioula’ guava rootstock irrigated with waters of different saline levels and nitrogen (N) doses, in an experiment conducted in plastic tubes under greenhouse conditions. The experimental design was randomized blocks, in a 5 x 4 factorial scheme with four replicates, and the treatments consisted of five levels of water electrical conductivity - ECw (0.3, 1.1, 1.9, 2.7 and 3.5 dS m-1) and four N doses (70, 100, 130 and 160% of the N dose recommended for the cultivation of guava seedlings, cv. ‘Paluma’). The dose referring to 100% corresponds to 773 mg of N dm-3. The highest growth of ‘Crioula’ guava rootstock was obtained with ECw of 0.3 dS m-1 and fertilization of 541.1 mg N dm-3 of soil; increasing N doses did not reduce the deleterious effect of the salt stress on the growth and phytomass formation of ‘Crioula’ guava rootstock; irrigation with water of up to 1.75 dS m-1, in the production of guava rootstocks, promotes acceptable reduction of 10% in growth and quality of the seedlings.

scholarly journals Sorption of Clomazone in Brazilian Soils with Different Physical and Chemical Attributes1

2016 ◽  
Vol 34 (2) ◽  
pp. 357-364 ◽  
Author(s):  
G.A.M. PEREIRA ◽  
L.H. BARCELLOS JR. ◽  
V.A. GONÇALVES ◽  
D.V. SILVA ◽  
A.T. FARIA ◽  
...  
Keyword(s):  
Dry Matter ◽  
Organic Matter Content ◽  
Matter Content ◽  
Soil Samples ◽  
Chemical Characteristics ◽  
Abstract Knowledge ◽  
Analysis Of Similarity ◽  
Brazilian Soils ◽  
Physical And Chemical ◽  
Different Soils

ABSTRACT Knowledge of herbicides sorption by colloids predicts its movement in the soil profile and its effectiveness in controlling weeds and crops poisoning when directly applied to the soil. This knowledge becomes even more important for herbicides which have long persistence in the soil. In this research, clomazone sorption was estimated by the biological method in Brazilian soil samples with different physical and chemical characteristics, cultivated with sugarcane crops. As an indicator of the presence of clomazone in the soil, Sorghum bicolor was used. The data relating to assessments of poisoning and accumulation of dry matter of the plants were subjected to multivariate analysis of similarity among variables. After that, clomazone doses that caused 50% of intoxication in sorghum plants grown (C50) as well as sorption ratio (SR) of the herbicide in different soil types were estimated. There was similarity greater than 80% for data regarding the percentage of intoxication and accumulated dry matter, with the option to use only those related to the first variable. RS and C50 were higher in Organosol and lower in red-yellow Latosol with and without changing the pH. It was concluded that the clomazone dose to be recommended must be differentiated for different soils, since the value of clomazone sorption in the soil is dependent on its attributes, and the organic matter content is of the utmost importance.

scholarly journals Environmental quality evaluation of lakes in the Rio Grande do Sul coastal plain

2007 ◽  
Vol 50 (4) ◽  
pp. 673-685 ◽  
Author(s):  
Catarina da Silva Pedrozo ◽  
Odete Rocha
Keyword(s):  
Environmental Quality ◽  
Sewage Treatment ◽  
Principal Component ◽  
Organic Pollution ◽  
Physical And Chemical Variables ◽  
Environmental Element ◽  
Different Characteristics ◽  
Physical And Chemical ◽  
The Town

The purpose of the present work was to evaluate the environmental quality of Marcelino, Pinguela, Peixoto, Palmital, Malvas and Do Passo lakes, interconnected by canals and located in the district of Osório, RS. In this context, 29 physical and chemical variables were analyzed with sampling carried out in January, May, July and October 1997 to verify the environmental quality of the system and the existence of a gradient of quality. Canonical Analysis was applied to the data of all environmental variables measured, and showed that the lakes had different characteristics as a consequence of the organic pollution received. Marcelino lake received continuous input of organic matter from the sewage treatment works in the town of Osório, whereas Peixoto, Pinguela, Palmital, Malvas and Do Passo lakes resembled other water bodies described in the region, not showing, so far, signs of degradation caused by the input of effluents. Principal Component Analysis selected environmental element were directly linked to organic pollution, that reflected sequential non-recent effects of contamination.

scholarly journals Parâmetros físico-químicos de polpas de fruta produzidas na cidade de Petrolina – PE

2015 ◽  
Vol 10 (4) ◽  
pp. 01 ◽  
Author(s):  
A. C. Honorato ◽  
C. B. R. Dias ◽  
E. B. Souza ◽  
I. R. B. Carvalho ◽  
K. S. M. Sousa
Keyword(s):  
Ascorbic Acid ◽  
Physicochemical Parameters ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Chemical Characteristics ◽  
Fruit Pulp ◽  
Total Titratable Acidity ◽  
Physical And Chemical ◽  
The City

<p>Este trabalho teve como objetivo avaliar os parâmetros físico-químicos de polpas de fruta produzidas e comercializadas na cidade de Petrolina-PE, tendo como referência a Instrução Normativa nº 1, de 7 jan. 2000, do Ministério da Agricultura que define as características físicas e químicas estabelecendo limites mínimos e máximos específicos para cada polpa de fruta. Foram avaliadas duas marcas (1 e 2) de polpas de abacaxi, cacau, caju, graviola, maracujá e umbu, analisadas quanto aos parâmetros de pH, sólidos solúveis totais (SST), acidez total titulável (ATT), ácido ascórbico, relação SST/ATT e sólidos totais. Os resultados permitem inferir que a marca 2 apresentou qualidade superior na maioria dos parâmetros avaliados quando comparado com a marca 1. Entretanto para alguns sabores de polpa as duas marcas não atenderam os valores padrões. Entre as polpas o único sabor que apresentou os padrões exigidos foi a polpa de caju em ambas as marcas, e a que apresentou resultado de pior qualidade diante dos padrões foi a polpa de maracujá principalmente da marca 1. Dessa forma constata-se que há grandes variações entre as marcas, e entre alguns parâmetros, o que compromete a qualidade das polpas, prejudicando assim o consumidor.</p><p align="center"><strong><em>Physicochemical parameters of fruit pulps produced in Petrolina – PE</em></strong></p><p><strong>Abstract</strong><strong>: </strong>This study aimed to evaluate the physicochemical parameters of fruit pulps produced and marketed in the city of Petrolina-PE, with reference to the Instruction Nº 1 of 7 January 2000 of the Ministry of Agriculture, which defines the physical and chemical characteristics setting minimum and maximum limits specific to each fruit pulp. We evaluated two brands (1 and 2) of pineapple, cocoa, cashew, soursop, passion and umbu fruit pulp, analyzed for pH, total soluble solids (TSS), total titratable acidity (TTA), ascorbic acid, TSS / TTA and total solids parameters. Results show that the brand 2 showed superior in most evaluated parameters when compared to the brand 1. However, for some pulp flavors of both brands did not reached the standards values. Among the pulps, the only flavor that presented the required standards was the cashew pulp in both brands, and presented the results of lower quality on the standards was the passion fruit pulp mainly brand 1. Thus, it appears that there are great variations between brands and between some parameters, which compromises the quality of the pulp, thus impairing the consumer.</p>

scholarly journals Structure of the phytoplankton community in the Cachoeira Dourada reservoir (GO/MG), Brazil

2011 ◽  
Vol 71 (3) ◽  
pp. 587-600 ◽  
Author(s):  
M. Teixeira de Oliveira ◽  
O. Rocha ◽  
AC. Peret
Keyword(s):  
Phytoplankton Community ◽  
Driving Forces ◽  
Climatic Factors ◽  
Euphotic Zone ◽  
Taxonomic Composition ◽  
Nitrogen And Phosphorus ◽  
Physical And Chemical Variables ◽  
Algal Assemblages ◽  
Physical And Chemical

The limnological features and the phytoplankton community of the Cachoeira Dourada reservoir were analyzed in December 2006, May 2007 and November 2007. Temporal changes in the taxonomic composition, density, diversity and dominance of species were analyzed in relation to climatic factors and the physical and chemical characteristics of the water. A positive correlation was found between some of the physical and chemical variables and the phytoplankton community. According to the CCA, variables such as the extent of the euphotic zone, temperature, pH, nitrogen and phosphorus concentrations directly affected the phytoplankton dynamics. Organisms belonging to the class Cyanophyceae were the most representative in all the sampling periods, comprising the functional groups K, S1, M and H. Hydrodynamics and seasonal fluctuations of environmental factors were the driving forces determining the composition and abundance of the algal assemblages. Despite the prevalence of Cyanobacteria, the reservoir is still oligotrophic. The absence of blooms and the relatively low population abundances indicated that the quality of the reservoir's water still lies within the limits required for its multiples uses.

Sign in / Sign up

Export Citation Format

Share Document