Description of biomechanical forces and physiological parameters of fruit cracking in pomegranate

Saei, Hassan; Sharifani, M.; Dehghani, Amir-Ahmad; Seifi, Esmaeil; Akbarpour, Vahid

doi:10.1016/j.scienta.2014.09.005

Cited by 31 publications

(30 citation statements)

References 38 publications

(48 reference statements)

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“…Skin thickness is an active factor in blocking rain penetration to innermost tissues and reducing the cracking force (Saei et al, 2014). Our data does not allow us to conclude anything regarding the effect of Ni on skin thickness.…”

Section: Discussioncontrasting

confidence: 56%

“…Fruit cracking is not an instant burst, but a gradual process. Nonetheless, in pomegranate, the peel cracking mechanism is still unclear and there is very little data on the morphological properties that influence it (Saei et al, 2014). Studies have shown that weakness of epidermis and formation of sclereid clusters in ground tissue cause cracking in pomegranate (Yazici et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

“…Also, Ca and Mg are responsible for strengthening the bonds between epidermal and other fruit cells, resulting in greater strength and low cracking of pomegranate fruits. Previous studies (Saei et al, 2014) on biomechanical behavior of plant tissue illustrate that its higher calcium concentration changes plant tissues' biomechanical behavior, making them harder and more brittle and less sensitive to cracking. A relationship exists between the biomechanical behavior of pomegranate fruit skin and its calcium concentration.…”

Section: Discussionmentioning

confidence: 99%

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Nickel Effect on Pomegranate Cracking, Nutrient Concentrations, and Biochemical Parameters of Pomegranate Peel

Dichala¹,

Therios²,

Koukourikou-Petridou³

et al. 2018

horts

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A field experiment was conducted in a pomegranate (Punica granatum L.) orchard of the well-known cultivars Wonderful and Acco, located in the farm of Aristotle University. The trees were sprayed, every 15 days from flowering (April) to fruit maturation (September), with solutions containing 0, 25, 50, 100 mM Ni, and 100 mM Ni + 100 mM B prepared with Ni(NO 3 ) 2· 6H 2 O and boric acid. Leaves and fully ripe fruits were initially sorted into cracked and uncracked ones, then further separated into peel and seeds, sampled, and analyzed. Nickel sprays were effective in controlling fruit splitting as well as Ca and Mg concentration of fruit peels. The correlation between cracking level and Ni concentration in solution was linear and negative. Cracking percentage with 50 mM Ni was lower in 'Wonderful', whereas no difference was recorded between the cultivars in the remaining treatments. Leaves had the smallest Ni concentration compared with fruit peel and seeds. Calcium concentration of pomegranate peels was higher than that of control peel at 50 mM Ni in 'Wonderful'. Concerning 'Acco', the treatments 25 mM Ni, 50 mM Ni, and 100 mM Ni + 100 mM B reduced Ca concentration, compared with control. 'Wonderful' fruit peel contained more phenolics than 'Acco'. The treatments 25, 50, and 100 mM Ni increased significantly the flavonoid concentration of fruit peels. The antioxidant capacity ferric-reducing antioxidant potential (FRAP) was linearly increased with Ni concentration in solution in 'Wonderful', whereas in 'Acco' it decreased at 25 and 50 mM Ni. Our data indicates that improving Ni nutrition of pomegranate can potentially reduce crop loss due to cracking and modified phenol and flavonoid concentration and FRAP value of fruit peel.

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Section: Discussioncontrasting

confidence: 56%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Nickel Effect on Pomegranate Cracking, Nutrient Concentrations, and Biochemical Parameters of Pomegranate Peel

Dichala¹,

Therios²,

Koukourikou-Petridou³

et al. 2018

horts

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“…Investigations of Thompson et al [17] showed that the puncture force of Calypso cucumber skin decrease from stem section to blossom (from 15.8 to and etc. [35] As the thickness of skin changes in different places of product, different values of mechanical properties are expected in different places. [9] The calcium effect can be explained by the formation of a calcium bridge between groups of pectin chains, especially homogalacturnan.…”

Section: International Journal Of Food Propertiesmentioning

confidence: 99%

“…[9] The calcium effect can be explained by the formation of a calcium bridge between groups of pectin chains, especially homogalacturnan. [35] Therefore, considering that several important factors play serious role in biomechanical behaviors change of skin, identifying of main reason of these differences is too complicated. To obtain a complete comprehension in histological view of fracture, a comparison of micro fibrils arrangements and cell geometry along the longitudinal axis of fruit skin using an electronic microscope is indispensable.…”

Section: International Journal Of Food Propertiesmentioning

confidence: 99%

Effect of Loading Position and Storage Duration on the Textural Properties of Eggplant

Ashtiani

Golzarian

Motie

et al. 2015

International Journal of Food Properties

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Eggplant has a very limited shelf life and, like other vegetables, is susceptible to different types of damage during and after harvest operations. Besides, according to the inner construction of eggplant fruit, it can be regarded as an inhomogeneous system. It is therefore important to specify how storage might affect their mechanical properties and how they vary in morphology.In this work, eggplants were divided into three portions along the longitudinal axis and their textural properties were separately investigated using different types of test over a 10-day period of storage at ~11˚C and ~90% relative humidity (RH). The results showed that the tension strength, rupture force and Young's modulus of skin tissue decreased with increasing the length of storage period, and they were generally different in the different portions of the fruit that were sampled as these properties in the upper section were larger than those of the middle and bottom sections. The values of Young's modulus and rupture force of pulp tissue taken from compression tests decreased from 1.466 to 0.821 MPa and 20.70 to 17.66 N for upper section, 0.637 to 0.536 MPa and 15.33 to 13.13 N for middle section and 0.518 to 0.422 MPa and 14.19 International Journal of Food Properties A c c e p t e d M a n u s c r i p t 2 to 12.19 N for bottom section, respectively with the increase in storage period. Similarly, as the samples were stored longer, the Young's modulus and rupture force of their combined skin and pulp tissues, obtained from penetration tests, decreased from 3.01 to 2.02 MPa and 31.21 to 24.95 N for upper section, 2.59 to 1.66 MPa and 28.64 to 21.66 N for middle section and 1.91 to 1.15 MPa and 23.18 to 17.37 N for bottom section, respectively. It was concluded that the mechanical resistance noticeably decreased towards the bottom third of the fruit.

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Comparative effects of gibberellin A₃, glycine betaine, and Si, Ca, and K fertilizers on physiological disorders and yield of pomegranate cv. Wonderful

Drogoudi¹,

Pantelidis²

2021

J Sci Food Agric

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BACKGROUND: Damage from cracking, russeting, and sunscalds causes significant yield losses in pomegranate worldwide and may result from stressful environmental conditions. Although foliar sprays with minerals or growth regulators could be an important orchard management, little is known on the effectiveness of glycine betaine, silicon (Si)-based fertilizers or the response of cv. Wonderful to gibberellin A 3 (GA 3 ). RESULTS: During a 2-year study, foliar spraying with GA 3 at 75 or 150 mg L −1 applied in July substantially reduced cracking, russeting, and sunscald symptoms and increased fruit size, yield, and 100-aril weight, without affecting the % edible portion or % juice, suggesting that arils and skin increased similarly. Nevertheless, they reduced the skin red coloration, especially at the higher dose. GA 3 at 75 mg L −1 applied in September resulted in a low number of harvested fruit as a result of delayed maturation. Spraying with glycine betaine at seven repeated times at biweekly intervals starting in July, reduced sunscald symptoms, red coloration, and maturity index only in the year with high damage. Foliar sprays with calcium chloride or Si-based fertilizer containing potassium, applied as in the glycine betaine treatment, did not affect the occurrence of physiological disorders, whereas Si-based fertilizer containing potassium and calcium increased cracking and decreased sunscald only in the year with high damage.CONCLUSION: Spraying with GA 3 at 75 mg L −1 in July could have a significant impact on a grower's income by reducing damage from physiological disorders, improving yield with a minimum decrease in red skin coloration. The efficacy of nutrient-related fertilizers and glycine betaine were not constant, and this would be useful to evaluate at earlier application times and under stress conditions.

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Description of biomechanical forces and physiological parameters of fruit cracking in pomegranate

Cited by 31 publications

References 38 publications

Nickel Effect on Pomegranate Cracking, Nutrient Concentrations, and Biochemical Parameters of Pomegranate Peel

Nickel Effect on Pomegranate Cracking, Nutrient Concentrations, and Biochemical Parameters of Pomegranate Peel

Effect of Loading Position and Storage Duration on the Textural Properties of Eggplant

Comparative effects of gibberellin A₃, glycine betaine, and Si, Ca, and K fertilizers on physiological disorders and yield of pomegranate cv. Wonderful

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Description of biomechanical forces and physiological parameters of fruit cracking in pomegranate

Cited by 31 publications

References 38 publications

Nickel Effect on Pomegranate Cracking, Nutrient Concentrations, and Biochemical Parameters of Pomegranate Peel

Nickel Effect on Pomegranate Cracking, Nutrient Concentrations, and Biochemical Parameters of Pomegranate Peel

Effect of Loading Position and Storage Duration on the Textural Properties of Eggplant

Comparative effects of gibberellin A3, glycine betaine, and Si, Ca, and K fertilizers on physiological disorders and yield of pomegranate cv. Wonderful

Contact Info

Product

Resources

About

Comparative effects of gibberellin A₃, glycine betaine, and Si, Ca, and K fertilizers on physiological disorders and yield of pomegranate cv. Wonderful