Cluster and Berry Characteristics of Flame Seedless Grapes Under Different Environmental Conditions in Egypt

Hegazi, A.; Sallam, A. El Kader

doi:10.17660/actahortic.2003.603.27

Cited by 4 publications

(4 citation statements)

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“…However, the cation Ca 2+ encourages the firmness of the cell wall by chelating the free carboxylic groups of galacturic units and cross-linking the pectic polysaccharide chains, forming a firmer, tighter structure [ 47 ]. Similar physical trait variability was reported for Flame Seedless grapes by other authors [ 50 , 51 , 52 , 53 , 54 ]; however, a comparison of the supplied results with the literature data was not possible.…”

Section: Resultssupporting

confidence: 75%

Physico-Chemical Properties Prediction of Flame Seedless Grape Berries Using an Artificial Neural Network Model

Al-Saif

Abdel-Sattar

Aboukarima

et al. 2022

Foods

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The grape is a very well-liked fruit that is valued for its distinct flavor and several health benefits, including antioxidants, anthocyanins, soluble sugars, minerals, phenolics, flavonoids, organic acids, and vitamins, which significantly improve the product’s overall quality. Today’s supply chain as a whole needs quick and easy methods for evaluating fruit quality. Thus, the objective of this study was to estimate the quality attributes of Flame Seedless grape berries cultivated under various agronomical management and other practices using color space coordinates (berry L*, berry a*, and berry b*) as inputs in an artificial neural network (ANN) model with the best topology of (3-20-11). Satisfactory predictions based on the R2 range, which was 0.9817 to 0.9983, were obtained for physical properties (i.e., berry weight, berry length, and berry diameter as well as berry adherence strength) and chemical properties (i.e., anthocyanin, total soluble solids (TSS), TSS/titratable acidity, total sugars, titratable acidity, reducing sugars, and non-reducing sugars). Meanwhile, we also performed a contribution analysis to analyze the relative importance of CIELab colorimeter parameters of berries L*, a*, and b* to determine the main fruit quality. In terms of relative contribution, berry b* contributed relatively largely to berry weight, berry adherence strength, TSS, TSS/titratable acidity, titratable acidity, total sugars, reducing sugars, and non-reducing sugars and a* contributed relatively largely to anthocyanin, berry length, and berry diameter. The developed ANN prediction model can aid growers in enhancing the quality of Flame Seedless grape berries by selecting suitable agronomical management and other practices to avoid potential quality issues that could affect consumers of them. This research demonstrated how color space coordinates and ANN model may well be utilized to evaluate the Flame seedless grape berries’ quality.

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Section: Resultssupporting

confidence: 75%

Physico-Chemical Properties Prediction of Flame Seedless Grape Berries Using an Artificial Neural Network Model

Al-Saif

Abdel-Sattar

Aboukarima

et al. 2022

Foods

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“…Flame Seedless is a popular table grape cultivar that previously introduced in Egypt and consider as a promising variety because its good qualities for local market and export (Hegazi and Sallam, 2003). The market value of 'Flame seedless grape cv.…”

Section: Introductionmentioning

confidence: 99%

Effect of Foliar Spraying Some Nano-Fertilizers or Potassium Silicate in Reducing the Use of Traditional Fertilizers on Growth, Yield and Bunch Characteristics of Flame Seedless Grapes

Awad,

AbouSayed-Ahmed,

Nomier

et al. 2024

Zagazig Journal of Agricultural Research

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This study carried out throughout two successive seasons 2017 and 2018, on 4 yearsold Flame seedless grapevines grown in sandy soil at 2x3 m apart under drip irrigation system and vines were trellised with Y-shape system in a private vineyard at Belbies District, Sharkia Governorate, Egypt. The experiment included 8 treatments as follow: T1-Control (spraying water) vines will be fertilized according to the used fertilization program followed in the vineyard (60 N, 40 P2O5 and 80 K 2 O g/vine/year). T2-Spraying vines with mixture of a nano fertilizer containing potassium (36%), amino acid (5%), total nitrogen (5%), total phosphorus (2%) and micronutrient (2%) [Potacrystal at 3 cm/L] (except potassium and 1/5 nitrogen). T3-Spraying vines with mixture of a nano fertilizer containing calcium (15%), magnesium (2%), boron (1.5%) with amino acid (2%) and nitrogen (10%) [Kalmagbor at 3 cm/L] (except 1/10 nitrogen). T4-Spraying vines with mixture of a nano fertilizer containing phosphorus (40%), potassium (28%), amino acid (5%) and nitrogen (5%) [Phospho one at 3 cm/L] (except potassium and phosphor and 1/5 nitrogen). T5-Spraying vines with mixture of nano micro nutrient + citric acid (Magro nano mix at 1 g/L) + (60 N, 40 P 2 O 5 and 80 K 2 O g/vine/year). T6-Spraying vines with normal chelated iron at 2 g/L+ (60 N, 40 P 2 O 5 and 80 K 2 O g/vine/year). T7-Spraying vines with nano chelated iron at 3 cm/L + (60 N, 40 P 2 O 5 and 80 K 2 O g/vine/year). T8-Spraying vines with normal potassium silicate at 5g/L+(60 N, 40 P 2 O 5 and 80 K 2 O g/vine/year). All spraying treatments carried out three times a year at monthly intervals i.e., the first week of each of March, April and May. The results showed that total yield/feddan (ton) significantly increased by application of all treatments compared with control in both seasons. The uppermost values of total yield per feddan (ton) recorded for treatments T4 (15.59 and 19.94 ton) and T7 (17.20 and 22.11ton) in the first and second season, respectively. The shortest bunches were from treatments control and Normal potassium silicate in the first and second season, respectively, while, other treatments recorded higher values of bunch length in the two seasons without significant differences between them. Leaf surface area (cm 2 ) and leaf fresh and dry weight were significantly increased by the tested treatments compared with control (T1) in the two seasons. However, leaves of T7 treatment (Nano chelated iron) contained the highest chlorophyll a (1.133 and 1.233 mg/100 mg FW), b (0.933 and 0.920 mg/100 mg FW), total chlorophyll (2.033 and 2.153 mg/100 mg FW) and carotenoids (0.950 and1.077 mg/100 mg FW).

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“…(Arab Agricultural Statistics Yearbook, 2020). Flame seedless' is a popular table grape cultivar that recently introduced in Egypt and consider as a promising variety because of its good qualities for local market and export (Hegazi and Sallam, 2003). The market value of grape 'Flame seedless is dependent upon its desirable appearance (homogeneity of the red color, berry and cluster size and shape).…”

Section: Introductionmentioning

confidence: 99%

Improvingquality and Color of Flame Seedlessgrapes by Spraying (Abscisic, Ascorbic and Salicylic) Acids and Ethrel (Ethephon)

Elsharawy,

Hassan,

A. Nomier

et al. 2023

Zagazig Journal of Agricultural Research

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This investigation carried out throughout two successive seasons 2016 and 2017, on six years-old Flame seedless grapevines in a private vineyard located at Km 93, Cairo, Alexandria desert road. Vines grown in sandy soil under drip irrigation system are trellised with Spanish (Paron) system and trained with quadrilateral cordon. The experiment included 10 treatments as follow:T1-Control (sprayed with water only), T2-Ethrel (ethephon) at 300 ppm, T3-Ascorbic acid (AA) at 500 ppm, T4 -Salicylic acid (SA) at 100 ppm, T5-ABA (Protone10% abscisic acid) at 400 ppm, T6-AA at 500 ppm + Ethrel (Eth) at 300 ppm, T7-SA at 100 ppm+ Eth at 300 ppm, T8-Eth at 300 ppm + ABA at 400 ppm, T9-AA at 500 ppm+ ABA at 400 ppm and T10-SA at 100 ppm+ ABA at 400 ppm. The foliar spray was used two times in the treatments from T2 to T5 but used once for every substance in the treatments from T6 to T10. The results cleared significantly effect of all treatments on yield, bunch, berry physical and chemical characteristics. Spraying with ascorbic acid (AA) or salicylic acid (SA) recorded highest values of 100-berry weight (g), berry firmness, attachment, berry length and width (cm) without significant differences with ABA in both seasons. The treatments of Ethrel (Eth), ABA and Eth+ ABA had maximum TSS (%), while Ethrel or Eth+ ABA had highest TSS/acid ratio and anthocyanin (%) in berries and also these treatments had least values of total acidity (%) in the two seasons. Spraying with ascorbic acid (AA) or salicylic acid (SA) or AA+ ABA or SA+ ABA recorded uppermost yield (kg/ vine) and bunch weight (g), followed by spraying Ethrel (Eth) or (Eth+ ABA).

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Cluster and Berry Characteristics of Flame Seedless Grapes Under Different Environmental Conditions in Egypt

Cited by 4 publications

References 0 publications

Physico-Chemical Properties Prediction of Flame Seedless Grape Berries Using an Artificial Neural Network Model

Physico-Chemical Properties Prediction of Flame Seedless Grape Berries Using an Artificial Neural Network Model

Effect of Foliar Spraying Some Nano-Fertilizers or Potassium Silicate in Reducing the Use of Traditional Fertilizers on Growth, Yield and Bunch Characteristics of Flame Seedless Grapes

Improvingquality and Color of Flame Seedlessgrapes by Spraying (Abscisic, Ascorbic and Salicylic) Acids and Ethrel (Ethephon)

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