Effect of Pre-Harvest Gibberellic Acid and Calcium Application on Post-Harvest Behaviour of Subtropical Peaches

Sharma, Shashi K.; Pratima, Preet

doi:10.12944/carj.6.1.10

Cited by 5 publications

(6 citation statements)

References 18 publications

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“…Also, potassium nutrient enhances fruit firmness by increase the pressure potentiality of fruit tissues (Lester et al 2006). Similar results were obtained by Abd El-Gayed et al (2017) and Sharma and Pratima (2018).…”

Section: Storability Studies Physical Parameterssupporting

confidence: 86%

Pre-Harvest Treatments On Canino Apricot Trees to Improve Yield, Fruit Quality at Harvest and During Storage

Ennab

El-Aziz

Soliman

2020

Journal of Plant Production

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The present study was conducted on eighteen years old Canino apricot trees grown in a private orchard at Motobus, Kafr El-Sheikh governorate, Egypt in 2019 and 2020 seasons to evaluate the effects of preharvest foliar treatments of potassium sulphate at 1.5% and calcium chloride at 2% individually or in combination in addition to Control (tap water) on yield, fruit quality at picking date and during cold storage at 0±1°C with 90-95 % RH. Canino apricot trees were sprayed three times starting after full bloom, fruit setting and finally ten days before harvest with one of the abomination treatments. The results showed that all treatments increased yield and improved fruit weight, size, height and width compared to control. Application of 1.5% K2SO4 produced the highest vitamin C content and SSC% after 7, 14 and 21 days of cold storage in both seasons. While, Application of 2% CaCl2 showed the lowest fruit decay % and SSC %, and maintained fruit firmness until 28 days of cold storage in both seasons. The combination between 1.5 % K2SO4 and 2% CaCl2 treatment produced the highest vitamin C content and acidity% and maintained fruit weight loss% and SSC/acid ratio in lowest values until 21 and 28 days of cold storage in both seasons. Finally, it could be recommend to spray K2SO4 at 1.5% and CaCl2 at 2% on Canino apricot trees three times to increase yield and improve physical and chemical fruit quality and maintains characteristics of fruit under cold storage.

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Section: Storability Studies Physical Parameterssupporting

confidence: 86%

Pre-Harvest Treatments On Canino Apricot Trees to Improve Yield, Fruit Quality at Harvest and During Storage

Ennab

El-Aziz

Soliman

2020

Journal of Plant Production

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“…Similarly, Valero et al (2014) stated that the application of Aleo vera coating limited the water loss in fruit, thereby reducing the weight loss in storage. GA3 application in different fruit species has positive effects on decreasing of the weight loss (Sharma and Pratima, 2018). The significant role of gibberellic acid (Fortes et al, 2015) in the formation and structure of the cuticle layer of the fruit may be the reason for the reduction in weight loss in the cold storage.…”

Section: Weight Lossmentioning

confidence: 99%

“…GA3 plays significant role on certain biological processes including respiration in the plant (Pharis and King, 1985). GA3 is used effectively to prolong postharvest life in many fruit species (Einhorn et al, 2013;Sharma and Pratima, 2018). Edible coating applications such as Parka (Meland et al, 2014), Aloe vera (AV) and chitosan (Mahajan et al, 2018) reduce respiration rate by limiting oxygen and carbondioxide gas transfer.…”

Section: Respiration Ratementioning

confidence: 99%

“…The pre-harvest applications, which will increase the quality and firmness of the fruit, in extending the postharvest storage life play a significant role. In this sense, GA3, which improves the fruit quality by promoting cell growth and elongation (Pharis and King, 1985) and increases fruit firmness with its effect on the cell wall (Fortes et al, 2015), is used effectively to extend the post-harvest life in many fruit species (Einhorn et al, 2013;Sharma and Pratima, 2018). It has been reported that with the pre-harvest GA3 application in jujube, the fruit that had higher firmness values and respiration rate were obtained (Ozturk et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Changes of quality traits and phytochemical components of jujube fruit treated with preharvest GA3 and Parka during cold storage

Karakaya¹,

Ağlar²,

Öztürk³

et al. 2020

Turk J Food Agric Sci

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The study aimed to assess the effects of pre-harvest gibberellic acid (GA3) and Parka applications on fruit quality and bioactive components of jujube (Ziziphus jujuba Mill. cv. ‘Li’) fruit during the storage. Fruit were kept at 0±0.5 °C and 90±5% RH for 45 days. Parka and GA3 applications delayed weight losses and respiration rate in the cold storage. While the effect of the Parka application on the decrease in fruit firmness values depending on the storage time was not significant, it can be said that GA3 application was effective in maintaining the fruit firmness in the cold storage. The increase in soluble solids content (SSC) during cold storage was less with GA3 application. The decrease in titratable acidity with ripening in the cold storage was similar in the Parka and control applications. It can be said that GA3 application was effective in maintaining the titratable acidity during storage and this effect increased with the combination of Parka+GA3. The highest vitamin C at the end of the storage was recorded in fruit treated with Parka. Total phenolics, total flavonoids and antioxidant activity decreased in all applications during the storage. GA3 and Parka applications retarded the losses in total phenolics, total flavonoids and antioxidant activity in the storage. As a result, it can be said that the pre-harvest GA3 and Parka applications give positive results in maintaining the quality properties of jujube fruit in the cold storage.

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“…8,9,10,11,12 In turn, calcium is directly related to post-harvest quality, 13 since it acts in the regulation of fruit softening, forming bridges between pectic acids and polysaccharides that provide resistance to the structure of the wall and cell membrane 14 and hinder the activity of hydrolytic enzymes, responsible for the loss of firmness in fruits, especially in soursop. In an attempt to delay ripening and senescence, reduce breathing, prolong life, maintain firmness and quality during storage, calcium chloride has been used in fruits such as peaches, 15,16 pear, 17 pitanga, 18 fig, 10 banana, 19 among others. Thinking about the market potential, consumption and preservation of the graviola's useful life, the objective of this work was to evaluate the efficiency of the coating with beeswax associated or not with calcium chloride on the physical-chemical quality and the control of fruit softening over 16 days of cold storage (13ºC).…”

Section: Introductionmentioning

confidence: 99%

Untitled

2020

MOJFPT

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The ripening of soursop is marked by significant changes in the firmness of the fruit, with pulp softening being the main cause of quantitative and qualitative losses during commercialization. To minimize this problem, fruits of the 'Morada' soursop were immersed in solutions of distilled water (control), beeswax (3%), CaCl 2 (3%) and the combination of beeswax + 3% CaCl 2 for a period minutes and then stored at 15ºC for 16 days. Analyzes of physical-chemical and biochemical quality were investigated at four-day intervals. Considering the immersion solutions using isolated beeswax (3%) and CaCl 2 (3%) resulted in satisfactory quality aspects in relation to the control, but it is in the combined use (beeswax + 3% CaCl 2 ) that results were observed significant (p<0.05) such as less loss of fresh weight (6.93%), greater firmness (32.18 N), better balance of soluble solids (11.98ºBrix), titratable acidity (0.82 g. 100 g -1 citric acid), SS / AT (14.60), pH(5.58) and less degradation of starch (8.98 g.100g -1 ) and total pectin (0.25 g.100g -1 ), in addition to less activity of the enzymes amylase, pectinamethylesterase and polygalacturonase in relation to the other treatments, especially the control. These results indicate that the combined use of 3% beeswax + 3% CaCl 2 preserves the physical-chemical quality and firmness of the pulp by reducing the activity of enzymes associated with the cell wall, thus suggesting a delay in fruit ripening.

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Effect of Pre-Harvest Gibberellic Acid and Calcium Application on Post-Harvest Behaviour of Subtropical Peaches

Cited by 5 publications

References 18 publications

Pre-Harvest Treatments On Canino Apricot Trees to Improve Yield, Fruit Quality at Harvest and During Storage

Pre-Harvest Treatments On Canino Apricot Trees to Improve Yield, Fruit Quality at Harvest and During Storage

Changes of quality traits and phytochemical components of jujube fruit treated with preharvest GA3 and Parka during cold storage

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