scholarly journals The Optimization of Nitrogen Fertilization Regulates Crop Performance and Quality of Processing Tomato (Solanum lycopersicum L. cv. Heinz 3402)

Agronomy ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 715 ◽  
Author(s):  
Spyridon A. Petropoulos ◽  
Ângela Fernandes ◽  
Eustratios Xyrafis ◽  
Nikolaos Polyzos ◽  
Vasileios Antoniadis ◽  
...  
Keyword(s):  
Linoleic Acid ◽  
Chemical Composition ◽  
Solanum Lycopersicum ◽  
Quality Parameters ◽  
Soluble Solids ◽  
Control Treatment ◽  
Chlorophyll Contents ◽  
Processing Tomato ◽  
Solanum Lycopersicum L ◽  
Varied Response

In this study, we evaluated the effect of various fertilization regimes on processing tomato (Solanum lycopersicum L. cv. Heinz 3402) yield and quality by applying the following treatments: (i) control (C), (ii) conventional fertilizer (21-0-0, N-P-K) (CF), (iii) slow release nitrogen fertilizer 46-0-0 (SR), (iv) conventional fertilizer (21-0-0, N-P-K) + Zeolite (CFZ), and v) composted sheep manure (M). The results of the study showed that the SR and CFZ treatments resulted in the highest fruit yield per hectare compared to the rest of the fertilizer and the control treatments. Fruit firmness was higher for the treatments C, M and SR, while color parameters (chroma and hue angle) were higher for the C and M treatments, respectively. Moreover, the total soluble solids content (TSS; °Brix) was higher when manure (M) was applied. In terms of chemical composition, the total and individual tocopherols and sugars were the highest for the M and C treatments, respectively, whereas the oxalic, malic and total organic acid contents were the highest for the CFZ treatment. Moreover, the tested treatments showed a varied response in different antioxidant assays, although the M treatment exhibited a high antioxidant capacity in most of the assays, except for the β-carotene/linoleate assay. The carotenoid and chlorophyll contents were the highest for the control treatment. The main detected fatty acid was linoleic acid, followed by palmitic, oleic and α-linolenic acid, while the CFZ treatment had the highest content of polyunsaturated fatty acids (PUFA) due to its high content of linoleic acid. In conclusion, although the application of fertilizers increased yield, the quality parameters and chemical composition showed a varied response to the fertilization regime, especially the TSS content and juice pH and electric conductivity (EC), which are significant for the marketability of the final product.

scholarly journals Deficit Irrigation as a Suitable Strategy to Enhance the Nutritional Composition of HydroSOS Almonds

Water ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3336
Author(s):  
Saray Gutiérrez-Gordillo ◽  
Leontina Lipan ◽  
Víctor Hugo Durán Zuazo ◽  
Esther Sendra ◽  
Francisca Hernández ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Fatty Acid ◽  
Chemical Composition ◽  
Acid Content ◽  
Deficit Irrigation ◽  
Fatty Acid Content ◽  
Quality Parameters ◽  
Nutritional Composition ◽  
Control Treatment ◽  
Irrigated Agriculture

The Mediterranean region is one of the most water-scarce areas worldwide and is considered a climate-change hotspot. To assure the viability and competitiveness of irrigated agriculture, it is vital to implement strategies that can maximize water saving without compromising yield. Deficit irrigation (DI) for cultivating drought-tolerant species such as almond (Prunus dulcis (Mill.) D.A. Webb) can help in achieving this goal, while at the same time improving fruit chemical composition. This work evaluated the effect of DI techniques and cultivars on the chemical composition of almonds (cvs. Marta, Guara, and Lauranne) in order to elucidate the most suitable irrigation dose under water-scarcity scenarios. Three irrigation regimes were imposed: a control treatment (FI), which was fully irrigated, receiving 100% of the irrigation requirement (IR), and two sustained-deficit irrigation (SDI) strategies that received 75% (SDI75) and 65% (SDI65) of IR. Significant differences among cultivars and irrigation treatments were observed for antioxidant activity and organic acid, sugar, and fatty acid content, which were increased by the SDI strategies. In addition, highly significant correlations were found between leaf-water potential and components such as fumaric acid, sugars, and fatty acids. In terms of the cultivars, cv. Marta showed the highest antioxidant activity, cv. Guara was the richest in organic acids, and cv. Lauranne had the highest fatty acid content. Consequently, SDI strategies improved almond quality parameters related to their nutritional and sensory composition, with significant water savings (reductions of 25–35%) and without important yield loss.

scholarly journals Paramylon Treatment Improves Quality Profile and Drought Resistance in Solanum lycopersicum L. cv. Micro-Tom

Agronomy ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 394 ◽  
Author(s):  
Laura Barsanti ◽  
Primo Coltelli ◽  
Paolo Gualtieri
Keyword(s):  
Drought Stress ◽  
Solanum Lycopersicum ◽  
Drought Resistance ◽  
Water Scarcity ◽  
Fold Increase ◽  
Quality Parameters ◽  
Soluble Carbohydrates ◽  
Antioxidant Compounds ◽  
Solanum Lycopersicum L ◽  
Quality Profile

Tomatoes, the most cultivated vegetables worldwide, require large amounts of water and are adversely affected by water stress. Solanum lycopersicum L., cv. Micro-Tom was used to assess the effects of β-(1,3)-glucan (paramylon) purified from the microalga Euglena gracilis on drought resistance and fruit quality profile. Plants were grown in an aeroponic system under three cultivation conditions: optimal water regimen, water scarcity regimen, and water scarcity regimen coupled with a root treatment with paramylon. Eco–physiological, physicochemical and quality parameters were monitored and compared throughout the lifecycle of the plants. Drought stress caused only a transient effect on the eco–physiological parameters of paramylon-treated plants, whereas physicochemical and biochemical parameters underwent significant variations. In particular, the fruits of paramylon-treated plants reached the first ripening stage two weeks before untreated plants grown under the optimal water regime, while the fruits of stressed untreated plants did not ripe beyond category II. Moreover, antioxidant compounds (carotenoids, phenolic acid, and vitamins) of fruits from treated plants underwent a two-fold increase with respect to untreated plants, as well as soluble carbohydrates (glucose, fructose, and sucrose). These results show that paramylon increases plant resistance to drought and highly improves the quality profile of the fruits with respect to untreated plants grown under drought stress.

scholarly journals Effect of regulated deficit irrigation on quality parameters, carotenoids and phenolics of diverse tomato varieties ( Solanum lycopersicum L.)

2017 ◽  
Vol 96 ◽  
pp. 72-83 ◽  
Author(s):  
Elena Coyago-Cruz ◽  
Mireia Corell ◽  
Carla M. Stinco ◽  
Dolores Hernanz ◽  
Alfonso Moriana ◽  
...  
Keyword(s):  
Solanum Lycopersicum ◽  
Deficit Irrigation ◽  
Quality Parameters ◽  
Regulated Deficit Irrigation ◽  
Solanum Lycopersicum L

scholarly journals Changes in Vegetative and Reproductive Growth and Quality Parameters of Strawberry (Fragaria × ananassa Duch.) cv. Chandler Grown at Different Substrates

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Noosheen Zahid ◽  
Mehdi Maqbool ◽  
Abdul Hamid ◽  
Muhammad Shehzad ◽  
Majid Mahmood Tahir ◽  
...  
Keyword(s):  
Wheat Straw ◽  
Rice Husk ◽  
Growth Yield ◽  
Titratable Acidity ◽  
Quality Parameters ◽  
Soluble Solids ◽  
Control Treatment ◽  
Total Carotenoids ◽  
Growth Substrates ◽  
Vegetative And Reproductive Growth

Growth substrates (polyester wool, rice husk, and wheat straw), along with soil as control treatment, were compared for vegetative growth, yield, and quality of strawberry cv. Chandler. All growth substrates tested showed good results in terms of growth rate as compared with control. Strawberry plants grown in polyester wool showed the highest (89.50%) survival rate as compared to rice husk (70.50%), wheat straw (64.63%), and control (67.56%). Moreover, a significant increase was observed among number of flowers, fruits, and yield in plants grown in polyester wool. Besides, a significant high amount of total soluble solids (TSS) (12.38 ºBrix), titratable acidity (TA) (1.21%), ash (0.72%), vitamin C (37.39 mg/100 g), total carotenoids (3.90 µg/100 g), and total anthocyanins (3.47 cyanidine-3-glucoside/100 g) was recorded in fruits grown in polyester wool as compared to control. From these results, it can be concluded that the use of polyester wool as a growth substrate for strawberries can give higher yield and better fruit quality.

Efecto del sustrato hidropónico sobre los atributos de calidad fisicoquímica y fisiológica de frutos de jitomate (Solanum lycopersicum var. saladette)

2019 ◽  
pp. 1-12
Author(s):  
Oscar Andrés Del Angel-Coronel ◽  
Magdalena Jimenez-Hernandez ◽  
Salomón Lopez Serrano ◽  
Jairo Armando Lopez Rojas
Keyword(s):  
Physicochemical Properties ◽  
Solanum Lycopersicum ◽  
Sugarcane Bagasse ◽  
Fruit Quality ◽  
Quality Parameters ◽  
Soluble Solids ◽  
Co2 Production ◽  
Substrate Type ◽  
Tomato Fruits ◽  
Coffee Husk

Objectives, methodology: In this paper we evaluate the effect of the substrate type on the physicochemical and physiological parameters of tomato fruits (Solanum lycopersicum) type hydroponic saladette. Fourteen hydroponic substrates of mineral origin were evaluated, and mixtures of the same with the aim of selecting substrates that can satisfy the needs or objectives desired by the producer and allowing the consumer to know a fruit with a better quality reflected by its physicochemical properties such as yield, size, colour, total soluble solids (°Brix), titrated acidity, firmness, ethylene and CO2 production. Contribution Substrates such as tezontle, tepezil and coffee husk are favorable in the cultivation of tomato (Solanum lycopersicum) type hydroponic saladette benefiting some of its quality parameters being the most feasible options for the producer and the consumer. Substrates such as the tezontle with compost, tepezil with vermicompost, sugarcane bagasse with compost, coffee husk with vermicompost and coffee husk with compost are other options to consider for cultivation; while the vermicompost, sugarcane bagasse, tepezil with vermicompost, tepezil with compost and sugarcane bagasse with vermicompost, were the least efficient treatments, redicing the fruit quality parameters.

Nitrogen in soil and subsurface drip-irrigated processing tomato plants (Solanum lycopersicum L.) as affected by fertilization level

2020 ◽  
Vol 261 ◽  
pp. 108999 ◽  
Author(s):  
Daniel Geisseler ◽  
Brenna J. Aegerter ◽  
Eugene M. Miyao ◽  
Tom Turini ◽  
Michael D. Cahn
Keyword(s):  
Solanum Lycopersicum ◽  
Tomato Plants ◽  
Processing Tomato ◽  
Solanum Lycopersicum L ◽  
Subsurface Drip ◽  
Fertilization Level

scholarly journals Physicochemical, Volatile, and Sensory Characterization of Promising Cherry Tomato (Solanum lycopersicum L.) Cultivars: Fresh Market Aptitudes of Pear and Round Fruits

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 618
Author(s):  
Julio Pérez-Marín ◽  
Hanán Issa-Issa ◽  
Jesús Clemente-Villalba ◽  
José Miguel García-Garví ◽  
Francisca Hernández ◽  
...  
Keyword(s):  
Solanum Lycopersicum ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Cherry Tomato ◽  
Fresh Market ◽  
Solanum Lycopersicum L ◽  
Solanaceae Family ◽  
Cherry Tomatoes

Tomato (Solanum lycopersicum L.) is a well-known plant that belongs to the Solanaceae family. It is a widely consumed vegetable, either fresh or industrially processed. The aim of this study was to characterize and compare the morphology, main physicochemical parameters, volatile composition, and sensory quality of 8 cherry tomato cultivars: 4 pear cherry tomatoes (Angelle, Seychelles, Santyplum, and Dolcetini) and 4 round cherry tomatoes (Katalina, Sweet star, C-95, and Karelya) to be able to replace the most popular ones in markets (Angelle and Katalina). Morphological parameters had significant differences among cultivars, while in terms of total soluble solids and titratable acidity, Dolcetini could be an interesting substitute of Angelle in pear cherry cultivars, while in round ones C-95 would be the closest one. Regarding sugars, Santyplum was probably the cultivar which could be placed into a similar place to Angelle, while in round ones, C-95 was probably the cultivar closest to Katalina. Santyplum, Seychelles (pear type), and C-95 (round type) are likely to be the most interesting cherry cultivars in providing a real alternative to the most cultivated ones, in terms of volatile profile and concentration of the main volatile compounds. Descriptive sensory analysis revealed that Seychelles cultivar in 9 of the 15 attributes under study could be considered as the most similar cultivar to replace Angelle, while in round types no clear and direct relationship was found with any cultivar. Finally, consumers reported similar values for Angelle and Seychelles pear type cultivars, while round ones did not show significant differences. In summary, it can be stated that Seychelles and C-95 are the best alternatives of pear and round cherry cultivars, respectively, as compared to the reference cultivars, Angelle and Katalina.

scholarly journals Potassium Requirements for Maximum Yield and Fruit Quality of Processing Tomato

1999 ◽  
Vol 124 (2) ◽  
pp. 199-204 ◽  
Author(s):  
T.K. Hartz ◽  
G. Miyao ◽  
R.J. Mullen ◽  
M.D. Cahn ◽  
J. Valencia ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Maximum Yield ◽  
Field Trials ◽  
Quality Parameters ◽  
Fruit Color ◽  
Soluble Solids ◽  
Exchangeable K ◽  
Processing Tomato ◽  
The Impact ◽  
The Relationship

A survey of 140 processing tomato (Lycopersicon esculentum Mill.) fields in central California was conducted in 1996-97 to examine the relationship between K nutrition and fruit quality for processing. Quality parameters evaluated were soluble solids (SS), pH, color of a blended juice sample, and the percent of fruit affected by the color disorders yellow shoulder (YS) or internal white tissue (IWT). Juice color and pH were not correlated with soil K availability or plant K status. SS was correlated with both soil exchangeable K and midseason leaf K concentration (r = 0.25 and 0.28, p < 0.01) but the regression relationships suggested that the impact of soil or plant K status on fruit SS was minor. YS and IWT incidence, which varied among fields from 0% to 68% of fruit affected, was negatively correlated with K status of both soil and plant. Soil exchangeable K/√Mg ratio was the measure of soil K availability most closely correlated with percent total color disorders (YS + IWT, r = -0.45, p < 0.01). In field trials conducted to document the relationship between soil K availability and the fruit color disorders, soil application of either K or gypsum (CaSO4, to increase K/√Mg ratio) reduced YS and total color disorders. Multiple foliar K applications were effective in reducing fruit color disorders at only one of two sites. In no field trial did K application improve yield, SS, or juice color.

scholarly journals Evaluation of Cherry Tomato (Solanum lycopersicum L. var. cerasiforme) Genotypes for Yield and Quality Parameters

2020 ◽  
Vol 9 (3) ◽  
pp. 467-472
Author(s):  
Najibullah Anwarzai ◽  
Jyothi Kattegoudar ◽  
M. Anjanappa ◽  
Meenakshi Sood ◽  
Anjaneya Reddy ◽  
...  
Keyword(s):  
Solanum Lycopersicum ◽  
Quality Parameters ◽  
Cherry Tomato ◽  
Solanum Lycopersicum L ◽  
Yield And Quality
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