scholarly journals REUSE OF SUBSTRATE IN THE PROTECTED CULTIVATION OF MUSKMELON

2021 ◽  
Vol 34 (3) ◽  
pp. 599-604
Author(s):  
PABLO FORLAN VARGAS ◽  
ATALITA FRANCIS CARDOSO ◽  
HAMILTON CÉSAR DE OLIVIERA CHARLO ◽  
RENATA CASTOLDI ◽  
LEILA TREVISAN BRAZ
Keyword(s):  
Production Systems ◽  
Titratable Acidity ◽  
Shape Index ◽  
Physicochemical Characteristics ◽  
Sweet Pepper ◽  
Fruit Shape ◽  
Soluble Solids ◽  
Coconut Shell ◽  
Protected Cultivation ◽  
Continuous Use

ABSTRACT Melon is a vegetable of great socioeconomic importance, and its cultivation is carried out under different production systems. The protected cultivation of melon can be carried out in coconut shell fiber, which is a substrate widely used in olericulture, but little information is available regarding its continuous use in more than one cultivation cycle. Therefore, this study aimed to evaluate the performance of muskmelon hybrids as a function of the reuse of coconut shell fiber with fertigation in a protected environment. The experiment was carried out in a greenhouse from March to July 2008 and designed in randomized blocks in a 2×3 factorial arrangement, with four replications. The factors consisted of two hybrids (‘Bonus 2’ and ‘Fantasy’) and three types of substrate (S1: new coconut shell fiber; S2: coconut shell fiber reused once in sweet pepper cultivation; and S3: coconut shell fiber reused twice, i.e., first in sweet pepper cultivation and then in melon cultivation). Transverse and longitudinal fruit diameter, fruit shape index, transverse and longitudinal locule diameter, locule shape index, peduncle insertion diameter, mesocarp thickness, firmness, skin netting, fresh mass, soluble solids, titratable acidity, pH, and yield were evaluated after harvest. Reusing twice the coconut shell fiber as a substrate did not affect the agronomic and physicochemical characteristics of the hybrids Bonus 2 and Fantasy.

scholarly journals Productivity and Qualitative Characteristics of Varieties of Beets

2018 ◽  
Vol 10 (6) ◽  
pp. 327
Author(s):  
Pablo W. R. Coutinho ◽  
Márcia M. Echer ◽  
Paulo S. R. Oliveira ◽  
Graciela M. Dalastra ◽  
Danielle A. Cadorin ◽  
...  
Keyword(s):  
Plant Height ◽  
Titratable Acidity ◽  
Shape Index ◽  
Physicochemical Characteristics ◽  
Quality Characteristics ◽  
Soluble Solids ◽  
Anthocyanin Content ◽  
Fresh Weight ◽  
Average Mass ◽  
Qualitative Characteristics

The objective of this study was to evaluate the physicochemical characteristics, biometric and productivity of beet cultivars. The experiment was conducted in random blocks with four repetition. The treatments were six beet cultivars: Maravilha, Merlot, Kestrel, Itapua 202, Chata do Egito and Tall Top Early Wonder. These cultivars were evaluated for plant height, leaf number, diameter and length of root, average mass of root and fresh weight of shoot, the root shape index, productivity, the soluble solids, titratable acidity, ratio, pH and anthocyanin content. The highest average root masses and productivity were observed for the cultivars Maravilha e Tall Top Early Wonder, being similar to Itapua 202 cultivars and the Boring Egypt. For quality characteristics there was no difference between cultivars for the soluble solids and pH, this was not the same behavior for titratable acidity and ratio. The highest anthocyanin content were observed in cultivars Merlot, Kestrel and Chata do Egito. The cultivars Chata do Egito presented the best productivity and quality characteristics, for the factors and elements of the elapsed year climate.

scholarly journals EVALUATION OF YIELD AND FRUIT QUALITY OF SEVERAL ECOTYPES OF CORNELIAN CHERRY (Cornus mas L.) IN POLISH CONDIOTIONS

2019 ◽  
Vol 18 (6) ◽  
pp. 139-148
Author(s):  
Iwona Szot ◽  
Tomasz Lipa ◽  
Bożena Sosnowska
Keyword(s):  
Vitamin C ◽  
Fruit Quality ◽  
Titratable Acidity ◽  
Shape Index ◽  
Fruit Shape ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Cornelian Cherry ◽  
Cornus Mas

Cornelian cherry is a little-known plant that can be grown in Poland both on a commercial and amateur scale. The commercial cornelian cherry plantations should be established using selected cultivars or vegetatively propagated valuable ecotypes, as only this guarantees a uniform yield, maturation and standardization of fruit quality. The experiment was carried out in 2014 and 2015 in the private plantation of cornelian cherry (Cornus mas L.) located in Dąbrowica, near Lublin (22.454 N; 51.270 E). The subject of the research were ecotypes No.: 1, 2, 3, 4, 5, 6, 7, 10, 11, 14, 15 obtained as seedlings in 1998. Cornelian cherry plants obtained from seeds differed very much in the yield and quality of fruit. The fruit characteristics for the examined ecotypes ranged to 1.63–2.21 g for fruit weight, 1.30–1.61 for fruit shape index, 10.13–15.32% for content of stone, 17.85–22.68% for soluble solids content (SSC), 2.32–3.0% for titratable acidity (TA), 6.59–8.36 for SSC/TA, 54.9–75.97 for vitamin C content. Among the ecotypes studied in terms of external fruit features, ecotypes No. 3 and 4 were distinguished due to the largest fruits (mass and diameter) and relatively small share of the stone in the whole mass of the fruit. However, due to the chemical composition, the fruits of ecotype No. 5 were distinguished by the content of extract, extract to acids ratio, sugar, dry matter, anthocyanins and vitamin C content. These fruits enjoyed 55% strong acceptability among adults. The indicated ecotypes can be used in breeding as well as in nursery for obtaining valuable varieties of cornelian cherry for production in Poland.

Study of the quality and antioxidant properties of tomatoes (Solanum lycopersicum L.) under different postharvest and dehydration conditions

2020 ◽  
Vol 13 (9) ◽  
Author(s):  
María Lorena Luna-Guevara ◽  
Teresita González-Sánchez ◽  
Adriana Delgado-Alvarado ◽  
María Elena Ramos-Cassellis ◽  
José Guillermo Pérez-Luna ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Rural Communities ◽  
Antioxidant Properties ◽  
Titratable Acidity ◽  
Physicochemical Characteristics ◽  
Soluble Solids ◽  
Convective Drying ◽  
Tomato Fruits ◽  
Solanum Lycopersicum L ◽  
Storage Temperatures

Objective: To study the effect of storage temperatures and dehydration conditions (solar and convective drying; SD, CD), on the quality, physicochemical parameters and antioxidant properties of tomato fruits. Methodology: The physicochemical characteristics pH, titratable acidity, soluble solids (°Bx) and color parameters (L*, a* and b*), were evaluated. The lycopene, carotenoids and antioxidant activity percentages retention of tomatoes fruits stored at 7 and 22 ° C for 5 days and subjected to SD (Temperature (T) of 67 °C and luminescence of 685 lum/sqf) and CD (T 70 °C, flow rates 0.5, 1.0 and 1.5 m/s), were analyzed. Results: The fruits reached humidities of 17 and 15% for SD and CD. The parameters pH, °Bx, L*, a*, b* were highest with 22°C and CD (1.5 m/s). The value of the carotenoids was higher in fruits stored at 7 ° C and subjected to CD (1.0 and 1.5 m/s) and SD with values of 83.85, 85.98 and 99.43%, respectively. The CD (0.5 m/s) and SD improved lycopene (94.37 and 95.14%) and the antioxidant activity with values of 73.06 and 97.21%. Implications: The application of solar dehydration depends on luminescence condition; however, it is inexpensive and environmentally friendly alternative. Conclusions: The results derived in a viable alternative for the conservation and commercialization of tomato fruits in rural communities

scholarly journals Preliminary Insights in Sensory Profile of Sweet Cherries

Foods ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 612
Author(s):  
Vânia Silva ◽  
Sandra Pereira ◽  
Alice Vilela ◽  
Eunice Bacelar ◽  
Francisco Guedes ◽  
...  
Keyword(s):  
Sweet Cherry ◽  
Prunus Avium ◽  
Sugar Content ◽  
Principal Component ◽  
Titratable Acidity ◽  
Physicochemical Characteristics ◽  
Quality Parameters ◽  
Sensory Profile ◽  
Soluble Solids ◽  
Sensory Data

Sweet cherry (Prunus avium L.) is a fruit appreciated by consumers for its well-known physical and sensory characteristics and its health benefits. Being an extremely perishable fruit, it is important to know the unique attributes of the cultivars to develop cultivation or postharvest strategies that can enhance their quality. This study aimed to understand the influence of physicochemical characteristics of two sweet cherry cultivars, Burlat and Van, on the food quality perception. Several parameters (weight, dimensions, soluble solids content (SSC), pH, titratable acidity (TA), colour, and texture) were measured and correlated with sensory data. Results showed that cv. Van presented heavier and firmer fruits with high sugar content. In turn, cv. Burlat showed higher pH, lower TA, and presented redder and brightest fruits. The principal component analysis revealed an evident separation between cultivars. Van cherries stood out for their sensory parameters and were classified as more acidic, bitter, and astringent, and presented a firmer texture. Contrarily, Burlat cherries were distinguished as being more flavourful, succulent, sweeter, and more uniform in terms of visual and colour parameters. The results of the sensory analysis suggested that perceived quality does not always depend on and/or recognize the quality parameters inherent to the physicochemical characteristics of each cultivar.

scholarly journals Postharvest quality of strawberry fruits produced in organic and conventional systems

2011 ◽  
Vol 29 (4) ◽  
pp. 577-583 ◽  
Author(s):  
Letícia KP Camargo ◽  
Juliano Tadeu V de Resende ◽  
Tânia T Tominaga ◽  
Sonia Maria Kurchaidt ◽  
Cristhiano K Camargo ◽  
...  
Keyword(s):  
Titratable Acidity ◽  
Physicochemical Characteristics ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Conventional System ◽  
Organic System ◽  
Camino Real ◽  
Sensorial Attributes ◽  
Solids Content ◽  
Conventional Systems

The aim of this study was to determine some physicochemical characteristics of fruits of eight strawberry cultivars (Aromas, Camino Real, Campinas, Dover, Oso Grande, Toyonoka, Tudla-Milsei and Ventana) cultivated in organic and conventional systems. The evaluated characteristics were soluble solids (SS), titratable acidity (TA), SS/AT ratio and anthocyanins. Evaluated sensory characteristics were flavor and appearance. The cultivars had a differential performance between themselves and among the systems for the evaluated characteristics. Generally, the conventional system produced fruit with higher levels of soluble solids and, organic system produced higher concentrations of anthocyanins. The fruits of the cultivar Toyonoka had the best soluble solids content in both systems and the anthocyanins content of 'Tudla-Milsei' and 'Camino Real' were proeminent in comparison to the other cultivars. The fruits from the organic system of production were preferred by judges on the sensorial attributes. The highest notes were given to the appearance of the cultivar Ventana in the conventional system and 'Tudla-Milsei' in the organic system.

scholarly journals QUALITY INDEX AND HARVEST MATURITY OF Eugenia cibrata FRUITS

2017 ◽  
Vol 39 (spe) ◽  
Author(s):  
GUIOMAR ALMEIDA SOUSA DINIZ ◽  
SEBASTIÃO ELVIRO DE ARAÚJO NETO ◽  
DHEIMY DA SILVA NOVALLI ◽  
NOHELENE THANDARA NOGUEIRA ◽  
IRENE FERRO DA SILVA
Keyword(s):  
Ascorbic Acid ◽  
Quality Index ◽  
Titratable Acidity ◽  
Shape Index ◽  
Additional Treatment ◽  
Soluble Solids ◽  
Pulp Yield ◽  
Maturity Stage ◽  
Flower Opening ◽  
Harvest Maturity

ABSTRACT The aim of this study was to characterize and determine the quality index and the harvest maturity of Eugenia cibrata fruits. Fruits were harvested at 39, 41 and 43 days after sprouting and selected by the larger size. Fruits ripened on the plant until complete abscissions were considered standard for determining the quality index after harvest. Samples were analyzed at harvest day and at two days of storage at temperature of 26 ± 2 ° C and relative humidity of 85-90%. The following items were evaluated: firmness, number of seeds, longitudinal and transversal diameter, shape index, weight of seeds, pulp and fruit, titratable acidity (TA ), soluble solids (SS), ascorbic acid, TA / SS ratio and pulp yield. The experimental design was completely randomized in a split plot scheme in time, with additional treatment. E. cibrata fruit is a round berry with 0.98 shape index; mass of 24.28 g, green epicarp and white endocarp. The maturity stage identified as ideal for harvest occurred from 43 days after flower opening (anthesis). Fruits selected among those with larger sizes also reached physiological maturity and quality similar to those ripened on the plant. The quality index of E. cibrata is pH 2.88; soluble solids of 3.7%; titratable acidity of 3.38% in citric acid; ascorbic acid of 77.05 mg 100g-1, TA / SS ratio of 1.09 and pulp yield of 72.01%.

scholarly journals Quality variables for technological application of cocoa clones from the Brazilian semiarid region

2021 ◽  
Vol 25 (3) ◽  
pp. 203-208
Author(s):  
Bianca M. Reges ◽  
Anielly M. Maia ◽  
Diogenes H. A. Sarmento ◽  
Mayara S. Silva ◽  
Sandra M. L. dos Santos ◽  
...  
Keyword(s):  
Titratable Acidity ◽  
Physicochemical Characteristics ◽  
Soluble Solids ◽  
Semiarid Region ◽  
Transverse Diameter ◽  
Brazilian Semiarid ◽  
Physical Traits ◽  
Chemical Traits ◽  
Food Processes ◽  
Longitudinal Diameter

ABSTRACT Characterization of cocoa clones produced in the semiarid region is necessary to enlarge the database about these implanted clones and thus enhance the quality of their by-products. Therefore, this study aims to evaluate physical, chemical, and physicochemical characteristics of the CCN 51, CEPEC 2004, CEPEC 2005, and PS 1319 clones, produced in the region of Vale do Jaguaribe in the state of Ceará (Brazil), and to suggest food processes or products for them. The clones were evaluated according to their physical traits (total fruit mass, rind, pulp, seeds, and placenta and pulp with seeds), fruit transverse diameter (FTD), fruit longitudinal diameter (FLD), the ratio FTD/FLD; rind external thickness (ERT), rind internal thickness (IRT), the ratio ERT/IRT, number of seeds, seed thickness, seed transverse diameter (STD), seed longitudinal diameter (SLD), and the ratio STD/SLD, yield, pulp color, chemical traits (humidity, lipids, proteins, ashes, crude fiber, and carbohydrates), and physicochemical traits (titratable acidity, pH, soluble solids, and reducing sugars) were evaluated. The CCN 51 and CEPEC 2005 clones are the most suitable for the process of cocoa fermentation. For desserts, jams, pulp, and nibs for fat-restricted diets, the most suitable clones are CCN 51, CEPEC 2005, PS 1319 and CEPEC 2004, respectively.

scholarly journals Flower thinning of apple cultivar Braeburn using ammonium and potassium thiosulfate: Short communication

2011 ◽  
Vol 38 (No. 3) ◽  
pp. 120-124 ◽  
Author(s):  
B. Milić ◽  
N. Magazin ◽  
Z. Keserović ◽  
M. Dorić
Keyword(s):  
Titratable Acidity ◽  
Fruit Shape ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Leaf Damage ◽  
Starch Degradation ◽  
Full Bloom ◽  
Flower Bud ◽  
Flower Bud Formation ◽  
Flower Thinning

Ammonium and potassium thiosulfate are used commercially or experimentally as flower thinners because they are considered user, environment and consumer safe. The thinning trials were conducted in 2009 and 2010, on three- and four-year-old Braeburn Mariri Red* trees. The chemicals were applied at 1%, 2% and 3% rates of ammonium and 0.5%, 1% and 1.5% of potassium thiosulfate. Both thinning agents reduced fruit set, but were more efficient in 2009, when applied at 20% full bloom, than in 2010, when they were applied at 80% full bloom. Flower thinning with ammonium and potassium thiosulfate increased the average fruit weight, but the highest chemical rates retarded fruit growth. Ammonium and potassium thiosulfate did not affect fruit shape and firmness, but they increased starch degradation, total soluble solids content and titratable acidity. The treatments increased the percentage of flower buds, except at the highest chemical rates, where leaf damage reduced flower bud formation. Ammonium or potassium thiosulfate application may be recommended as the first step in a chemical thinning program

scholarly journals Stability of Kiwi Varieties of ‘Hayward’ in Powder During Storage

2020 ◽  
Vol 8 (2) ◽  
pp. 150
Author(s):  
Inacia Dos Santos Moreira ◽  
Jacinete Pereira Lima ◽  
Deise Souza de Castro ◽  
Wilton Pereira da Silva ◽  
Josivanda Palmeira Gomes ◽  
...  
Keyword(s):  
Water Activity ◽  
Bioactive Compounds ◽  
Titratable Acidity ◽  
Physicochemical Characteristics ◽  
Soluble Solids ◽  
Total Chlorophyll ◽  
Lower Content ◽  
Total Water ◽  
Ph Values ◽  
The Stability

For the preservation of products obtained by dehydration, it is necessary to evaluate their physicochemical characteristics during storage. It was proposed, in the present study, to evaluate the stability of the kiwi cv. ‘Hayward’ powder, obtained at temperatures of 60 and 70 °C during its storage in laminated packages under controlled conditions of temperature (25 ºC) and relative humidity (75%) for 90 days. The parameter’s evaluated were: moisture content, ashes, soluble solids, titratable acidity (% citric acid), pH, water activity at 25 ºC, color for the parameters lightness (L*) and chromaticity (+a* red; -a* green; +b* yellow; and -b* blue), phenolic compounds, flavonoids, total chlorophyll and carotenoids. It was observed that, after the 90 days, for the powder obtained at 70 °C, the soluble solids and pH values were altered by the storage, which did not occur for the powder obtained at 60 °C. For both powders, the content of ash and bioactive compounds were not affected by storage. The parameter of lightness decreased in both powders. The powder obtained at 70 ºC proved to be better, showing lower content of moisture and total water activity, as well as the highest values of bioactive compounds.

scholarly journals Selection of Fertilizer and Cultivar of Sweet Pepper and Eggplant for Hydroponic Production

Agronomy ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 433
Author(s):  
Hardeep Singh ◽  
Bruce L. Dunn ◽  
Mark Payton ◽  
Lynn Brandenberger
Keyword(s):  
Solanum Melongena ◽  
Shape Index ◽  
Sweet Pepper ◽  
Fruit Production ◽  
Fruit Shape ◽  
Fresh Weight ◽  
Hydroponic System ◽  
Shoot Fresh Weight ◽  
Hydroponic Cultivation ◽  
Shoot Weight

Dutch bucket hydroponic trials were conducted with the aim to evaluate the effects of different hydroponic fertilizers (5N-4.8P-21.6K, 5N-5.2P-21.6K, and 7N-3.9P-4.1K) on growth, fruit production, and the fruit quality (fruit shape index) parameters of two cultivars of sweet pepper (Capsicum annuum L.) and on two cultivars of eggplant (Solanum melongena L.). For sweet pepper yield, the 5N-4.8P-21.6K fertilizer was responsible for the greatest yield for both cultivars. For sweet pepper fresh and dry shoot weight interaction, the ‘Orangella’ cultivar had greater growth in 5N-4.8P-21.6K and 5N-5.2P-21.6K fertilizers, whereas there was no difference among cultivars in 7N-3.9P-4.1K. Shape index was not affected by fertilizers or cultivars. For the eggplant yield, there was no main effect nor interaction between fertilizers and cultivars for fruit yield, while the interaction between fertilizers and cultivars was significant for shoot fresh weight production. Shoot fresh weight was greater for ‘Angela’ than ‘Jaylo’ in 5N-4.8P-21.6K and 7N-3.9P-4.1K. Furthermore, both eggplant cultivars were affected with yellowing of fruits in all fertilizer treatments after 2 months, which was probably due to the accumulation of nutrients in the closed hydroponic system. Therefore, hydroponic producers could select 5N-4.8P-21.6K and 5N-5.2P-21.6K fertilizers for the cultivation of the ‘Orangella’ cultivar of sweet pepper based on yield. It is important to evaluate more fertilizers and cultivars for eggplant hydroponic cultivation.

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