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Effect of pre-harvest spray of chemicals on shelflife and quality of mango cv. KESAR
... Calcium spray during fruit development provides a safe mode of supplementing endogenous calcium to fresh fruits. (Gerasopoulos et al. 1996; Tzoutzoukou and Bouranis 1997; Raese and Drake 2000) [15][16][17] . The aim of this work was to determine the effect of pre-harvest foliar spray of paclobutrazol and calcium chloride on biochemical and sensory attributes of Amrapali mango. ...
... This might be because the concentrations of CaCl 2 delayed the rapid oxidation of ascorbic acid. Similar finding was obtained by Patel et al. (2015) [26] in mango. Application of paclobutrazol with CaCl 2 can produce effects on ascorbic acid contents of mango and that may be due to synergetic effect of both of them with each other. ...
... Retention of better quality in fruits treated with paclobutrazol and CaCl 2 might be due to reduction in physiological weight loss, respiration rates of fruits and consequently a reduction in the rates of utilization of respirable substrates, as such fruits contained relatively higher TSS and sugar contents, eventually resulting in better acceptability rating of such fruits. This findings had close conformity with Patel et al. (2015) [26] in mango. ...
... The temperature within the microenvironment may vary from the external conditions when using bagging (Pisciotta et al., 2020). Previous studies have explored various dosages of calcium chloride sprayed as pre-harvest treatments, while other researchers have immersed mango fruits in calcium solutions for various durations to reduce post-harvest losses through the determination of physicochemical properties (Lakshmi and Guntupalli, 2018;Urvish et al., 2015). As fruit ripens, various physiological and biochemical changes occur, including softening, shrinkage, and decay, ultimately bringing about a decline in quality and limiting its shelf life in pear fruits (Singh et al., 2019). ...
Extended shelf life of fruits is of prime importance to ensure their availability in the market and facilitate longer-distance transportation. In this case, effective pre-harvest treatments are crucial for managing the climacteric nature of mangoes by reducing post-harvest decay during storage. So, implementing pre-harvest spray of nutrients and bagging is vital to reduce deterioration and improve the quality of mango cv. 'Amrapali' in storage. A study assessed various interventions, including bagging, 2% CaCl 2 , 1.5% K 2 SO 4 , and 2% CaCl 2 + 1.5% K 2 SO 4 + bagging, in preserving postharvest quality and retarding fruit softening of mangoes at ambient storage (25 ± 3 ºC and 80-85% RH). Several physicochemical attributes and disease incidence at 0, 4, 8, 12, and 16 days of storage were analyzed. The findings indicated that 2% CaCl 2 + 1.5% K 2 SO 4 + bagging treatment appeared superior compared to control in terms of lower weight loss (5. treatment also showed better peel and pulp colour of mango fruits with greater values of L* (brightness), a* (redness), as well as b* (yellowness) compared to control. Notably, fruits that were treated with 2% CaCl 2 + 1.5% K 2 SO 4 + bagging had the lowest polyphenol oxidase (PPO), while control showed reduced activity of catalase (CAT) and peroxidase (POD). These findings suggest that 2% CaCl 2 + 1.5% K 2 SO 4 + bagging might be a successful approach to improving the quality and postharvest physiology of mangoes cv. Amrapali at ambient storage.
... All these attributes in response to so many pre harvest practices, the application of plant growth regulator play important role, but the exact information about the specific plant growth regulator and its concentration is lacking. The information about effect of plant growth regulators on enhancing fruit yield, fruit quality and shelf life of Amrapali variety of mango grown in West Central Table Land Zone of Odisha is meager [6,7]. Looking at all the above aspects, the present investigation was taken up to study the "Effect of plant growth regulators on fruit yield, fruit quality and shelf-life of Mango (Mangifera indica L.) cv. ...
An experiment on “Effect of Plant growth regulators on fruit yield and fruit quality of Mango (Mangifera indica L.) cv. Amrapali” was conducted at the research plot, College of Horticulture, Chiplima during the year 2020-21 by using Randomized Block Design with three replications and ten treatments. Three concentrations of NAA i.e. 10, 20 and 30 ppm, three concentrations of GA3 i.e. 10, 20 and 30 ppm and three concentrations of 2,4-D i.e. 10, 20 and 30 ppm were applied at pea and marble stage of fruit. Research work was held on 07 years old plants of mango cv. Amrapali. Highest fruit weight (263.21g), and total yield of 18.34 kg per plant were recorded under T7. The minimum yield (4.41 kg per plant) was recorded under T1 (Control). The highest number of fruits per plant(69.67) and fruit yield (18.34 kg per plant ) was recorded under treatment T7 (30 ppm foliar application of GA3). The maximum TSS: acid ratio (115.81) was obtained with T10 (30 ppm concentration of 2,4-D) which was known to be superior from all other treatments. The minimum TSS: acid ratio (55.00) was estimated under T1. Ascorbic acid content of mango cv. Amrapali ranged from 39.34 mg/100g (T10) to 55.97 mg/100g (T1). The highest total sugar content (14.99 %) was estimated in T10 (2,4-D at 20 ppm) while the lowest total sugar content (10.42 %) was estimated in T1 (Control). T10 (30 ppm foliar applications of 2,4-D) showed maximum ascorbic acid content (55.97 mg/100g), while lowest (39.34 mg/100 g) was recorded under T1 (Control). It is concluded that the foliar application of 30 ppm GA3 (Gibberellic acid) and 30 ppm 2,4-D were found to be optimum concentrations which showed best results by increasing yield and fruit quality of mango cv. Amrapali.
Extended shelf life of fruits is of prime importance to ensure their availability in the market and facilitate longer-distance transportation. In this case, effective pre-harvest treatments are crucial for managing the climacteric nature of mangoes by reducing post-harvest decay during storage. So, implementing pre-harvest spray of nutrients and bagging is vital to reduce deterioration and improve the quality of mango cv. ‘Amrapali’ in storage. A study assessed various interventions, including bagging, 2% CaCl2, 1.5% K2SO4, and 2% CaCl2 + 1.5% K2SO4 + bagging, in preserving postharvest quality and retarding fruit softening of mangoes at ambient storage (25 ± 3 ºC and 80–85% RH). Several physicochemical attributes and disease incidence at 0, 4, 8, 12, and 16 days of storage were analyzed. The findings indicated that 2% CaCl2 + 1.5% K2SO4 + bagging treatment appeared superior compared to control in terms of lower weight loss (5.10–10.84, 6.83–17.34%), pH (2.83–5.15, 3.00–5.48), decay incidence (0–9.87, 1.47–41.37%), ethylene production (0.21–0.84, 0.36–1.92 µl kg−1 h−1), respiration rate (2.92–27.03, 4.48–52.76 ml CO2 kg−1 h−1) while higher in fruit firmness (4.92–2.01, 4.41–1.23 kg cm−2), total soluble solids-TSS (11.67–17.60, 11.33–15.66º Brix), ascorbic acid content (39.86–11.26, 35.26–5.56 mg 100 g−1), total sugar (7.96–16.07, 3.82–14.52 mg 100 g−1), carotenoid (173.53–664.33, 67.00–567.00 µg 100 g−1), total phenol (163.53–113.58, 143.61–51.72 mg 100 g−1), DPPH scavenging activity (431.29–305.53, 308.65–228.49 µmol g−1). 2% CaCl2 + 1.5% K2SO4 + bagging treatment also showed better peel and pulp colour of mango fruits with greater values of L* (brightness), a* (redness), as well as b* (yellowness) compared to control. Notably, fruits that were treated with 2% CaCl2 + 1.5% K2SO4 + bagging had the lowest polyphenol oxidase (PPO), while control showed reduced activity of catalase (CAT) and peroxidase (POD). These findings suggest that 2% CaCl2 + 1.5% K2SO4 + bagging might be a successful approach to improving the quality and postharvest physiology of mangoes cv. Amrapali at ambient storage.
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