scholarly journals POSTHARVEST QUALITY OF STRAWBERRY FRUITS GROWN IN CONV ENTIONAL SYSTEM

2020 ◽  
Vol 1 (1) ◽  
pp. 177-180
Author(s):  
Monica Sturzeanu
Keyword(s):  
Weight Loss ◽  
Open Field ◽  
Fruit Quality ◽  
Room Temperature ◽  
Fruit Weight ◽  
Postharvest Quality ◽  
Fruit Firmness ◽  
Storage Method ◽  
Before And After

The objective of the study was to evaluate some postharvest parameters of fruit quality at seven strawberry cvs., ('Alba', 'Clery', 'Coral', 'Magic', 'Premial', 'Queen Elisa', 'Record') grown at RIFG Pitești, Romania in open field, in the 2016-2018 period. The storage method included three days in normal refrigeration condition (2-4ºC) followed by one day at room temperature (22-24 ºC). The following parameters were determined before and after storage: fruit weight (g), fruit firmness (kgf/cm2), four color indicators (L*, a*, b*, ∆E) and percent of damaged fruits caused by pathogen. Statistically assured differences were recorded between cultivars. 'Premial' cv. proved the lowest fruit weight loss (0.27 g) and also the lowest fruit firmness loss (0.09 kgf/cm2) after storage. 'Alba' cv. had the highest percentage of healthy fruits after storage (86.4%). After four days storage both early cvs.were marketable.

scholarly journals 355 Effect of UV-C on Ripening and Postharvest Quality of Peaches

HortScience ◽  
1999 ◽  
Vol 34 (3) ◽  
pp. 504D-504 ◽  
Author(s):  
Robert C. Ebel ◽  
Floyd M. Woods ◽  
Dave Himelrick
Keyword(s):  
Fruit Quality ◽  
Skin Color ◽  
Storage Temperature ◽  
Brown Rot ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Before And After ◽  
And Storage ◽  
Uv C

Brown rot of peaches is one of the most devastating diseases that can occur before and after harvest. There has been extensive research that has shown that ultraviolet light (UV-C) kills the fungus that causes brown rot. However, it is has not been determined whether UV-C will also change ripening and fruit quality. We applied UV-C to `Loring' peaches that were harvested 10 days before normal harvest. We intentionally picked the fruit early because we wanted to make sure the fruit had not entered the climacteric. The fruit were treated with UV-C and ethylene, skin color, firmness, and soluble solids were measured. We also held fruit at three storage temperatures to determine whether there may be an interaction between UV-C treatment and storage temperature. Ethylene was slightly higher for UV-C treated fruit at 70 °F (20 °C) and 55 °F (12 °C), but not at 40 °F (4 °C). However, there was very little effect on firmness and soluble solids. There was a slight delay in development of red blush. UV-C had little effect on ripening and peach fruit quality.

scholarly journals Optimizing Nitrogen for Improving Yield and Fruit Quality of `Redspur Delicious' Apple

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 613b-613
Author(s):  
Esmaeil Fallahi ◽  
John K. Fellman
Keyword(s):  
Fruit Quality ◽  
Underground Water ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Soil Nitrate ◽  
Fruit Firmness ◽  
Quality Factors ◽  
Time Of Application ◽  
Nutrient Partitioning

Effects of three times and five rates of urea application on productivity, tree growth, soil nitrate movement, nutrient partitioning, and postharvest fruit quality of `Redspur Delicious' apple on M.7 rootstock over several years were studied. Time of application did not have significant effects on most fruit quality factors or yield. However, significant differences were observed for quality and yield measurements among different quantities of N. Fruit firmness decreased with every increment in N increase. Trees with N at 0.045 kg/tree had lower yield and higher fruit firmness than those with higher quantities of N. Fruit weight and color decreased with each increment increase in the quantity of N. Trees with N at 0.045 and 0.18 kg/tree had significantly better (more red) color and lower fruit N and leaf N than those with higher quantities of N. Bud tissue nutrients were affected by quantity of N application. Fruit from trees with N at <0.18 kg/tree had lower soluble solids. High N increased fruit ethylene and respiration. Nitrogen application affected 2-methyl butyl acetate of fruit. Monitoring nitrate movement through the soil showed that application of N at >0.45 kg/tree, particularly in fall resulted in excess levels of nitrate, increasing the possibility of underground water contamination. Applying N at ≤0.32 kg/tree did not result in excess soil nitrate at 1.52-m depth.

716 PB 400 THE EFFECT OF PACKING DELAYS ON THE FRUIT QUALITY OF VALENCIA ORANGES

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 535f-535
Author(s):  
M. L. Gottlieb ◽  
M. L. Arpaia
Keyword(s):  
Weight Loss ◽  
Fruit Quality ◽  
Storage Temperature ◽  
Export Market ◽  
Postharvest Quality ◽  
Color Development ◽  
Peel Color ◽  
Valencia Orange ◽  
Penetration Force

A major outlet for California Valencia orange fruit is the export market. Transit time to Pacific Rim markets varies from ca. 20 to 40 days. This coupled with delays in packing and cooling ranging from 1 to 3 days may negatively affect fruit quality at the destination market. A study was conducted which examined cooling/packing delays (6, 24, 48, 72 hrs), storage temperature (5, 11C) and duration (3, 6 wks) following packing to evaluate the effect of these factors on the postharvest quality of Valencia orange. The following parameters were monitored: peel penetration force, peel color (L*, Chroma, Hueo), weight loss, external appearance (0-5), decay, and changes in carton pack height. Weight loss prior to packing was directly related to the duration of the prepack delay. This relationship, however, did not continue through storage and simulated marketing. Fruit subjected to delayed packing, however, had lower pack heights and higher external ratings following storage. Storage at 11C resulted in decreased penetration force, higher levels of decay and greater color development and weight loss. Storage for 6 weeks resulted in decreased penetration force, higher weight loss and greater color development.

scholarly journals Chitosan-Based Coating Enriched with Hairy Fig (Ficus hirta Vahl.) Fruit Extract for “Newhall” Navel Orange Preservation

Coatings ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 445 ◽  
Author(s):  
Chuying Chen ◽  
Nan Cai ◽  
Jinyin Chen ◽  
Xuan Peng ◽  
Chunpeng Wan
Keyword(s):  
Weight Loss ◽  
Superoxide Dismutase ◽  
Fruit Quality ◽  
Cold Storage ◽  
Postharvest Quality ◽  
Navel Orange ◽  
Fruit Extract ◽  
Protective Enzyme ◽  
Ficus Hirta

A novel coating based on 1.5% chitosan (CH), enriched with or without hairy fig (Ficus hirta Vahl.) fruit extract (HFE), was applied to “Newhall” navel orange for improving the preservation effect. Changes in physicochemical indexes were analyzed over 120 days of cold storage. Uncoated fruit were used as the control. The CH-HFE coating, based on 1.5% CH enriched with HFE, exhibited the best preservation effect and showed the lowest decay rate (5.2%) and weight loss (5.16%). The CH-HFE coating could postpone the ripening and senescence of navel oranges, and maintain higher fruit quality by inhibiting respiration, decreasing the accumulation of malondialdehyde (MDA), and enhancing the activities of protective enzyme, including superoxide dismutase (SOD), peroxidase (POD), chitinase (CHI), and β-1,3-glucanase (GLU), which suggests that CH-HFE coating has the potential to improve the postharvest quality of “Newhall” navel orange and prolong the storage life.

Ammonium thiosulfate and 6-benzyladenine improve the crop load and fruit quality of 'Delicious' apples

2007 ◽  
Vol 47 (5) ◽  
pp. 635 ◽  
Author(s):  
S. A. Bound ◽  
S. J. Wilson
Keyword(s):  
Fruit Quality ◽  
Positive Relationship ◽  
Sugar Content ◽  
Fruit Size ◽  
Fruit Weight ◽  
Fruit Firmness ◽  
Single Application ◽  
Crop Load ◽  
Ammonium Thiosulfate

Four trials were conducted over 3 years to assess the effect of ammonium thiosulfate (ATS) as a blossom thinner of ‘Delicious’ apple trees. In addition to determining the optimal concentration of ATS and the effectiveness of multiple applications, the effect on fruit quality was assessed. A program using ATS at bloom and 6-benzyladenine (BA) applied postbloom was examined. Multiple applications of ATS reduced crop load more than a single application. A concentration of 1.0% (v/v, 5800 mg/L) applied twice during the flowering period is recommended, with the first application at 20% bloom and the second at 80% bloom. Fruit firmness and sugar content were increased by ATS, and a positive relationship between fruit weight and sugar content and between fruit weight and firmness was demonstrated. ATS can also be effectively combined in a program with BA with the added benefits of increases in fruit size, firmness and sugar content; however, caution is advised to prevent over-thinning.

scholarly journals Application of Essential Oils for Maintaining Postharvest Quality of ‘Rongrien’ Rambutan Fruit

Agriculture ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1204
Author(s):  
Nittaya Ummarat ◽  
Kanogwan Seraypheap
Keyword(s):  
Weight Loss ◽  
Essential Oil ◽  
Essential Oils ◽  
Fruit Quality ◽  
Postharvest Quality ◽  
Edible Coatings ◽  
Nephelium Lappaceum ◽  
Fruit Pericarp

The postharvest quality of rambutan fruits (Nephelium lappaceum Linn.) is mainly influenced by dehydration, which causes browning of the peel and spinterns. This research investigated the effects of some essential oils—from citronella, clove, kaffir lime, and lemongrass—on ‘Rongrien’ rambutan fruit quality during storage at 13 °C. Screening of effective concentrations from 0.01 to 0.16% was conducted for each essential oil. The results showed that, of the essential oil treatments tested, a kaffir lime oil coating of 0.01% could best maintain the quality of fruits, reducing both weight loss and browning of the peel and spinterns. However, essential oil concentrations exceeding 0.04% severely damaged the fruit pericarp, in which scores of spintern browning were higher than those of peel browning. These results suggest that kaffir lime oil can maintain the postharvest quality of ‘Rongrien’ rambutan fruit as a supplement in some edible coatings.

scholarly journals Impact of AVG Preharvest Spray and Soil Injection on Yield and Quality of Melon

HortScience ◽  
2006 ◽  
Vol 41 (5) ◽  
pp. 1249-1252 ◽  
Author(s):  
Daniel I. Leskovar ◽  
Smiljana Goreta ◽  
Jose A. Franco
Keyword(s):  
Fruit Quality ◽  
Field Experiments ◽  
Root Zone ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Real Field ◽  
Fruit Firmness ◽  
Marketable Yield ◽  
Spray Method

The aim of this study was to determine whether aminoethoxyvinylglycine (AVG), an inhibitor of ethylene synthesis, would affect earliness, increase yield, and improve overall at harvest and postharvest quality of melon (Cucumis melo L. group Cantalupensis, `Sol Real'). Field experiments were conducted during two seasons with AVG (124 g·ha–1 a.i.) applied as spray or soil injected into the root zone with a single or double application between 7 d and 21 d before harvest. The AVG soil injection method increased earliness compared with AVG spray in one season. Total marketable yield increased with AVG injection but not with the AVG spray method compared with the control. Regardless of method of application, AVG did not affect fruit firmness, rind thickness, netting, or soluble solids content when measured at harvest. However, AVG spray decreased fruit size and seed cavity in one season. Similarly, AVG spray did not affect fruit quality after storage, whereas AVG soil injection increased fruit firmness. Overall, melon yield and fruit quality responses to preharvest AVG applications were superior for the soil injection than the spray method.

scholarly journals The Postharvest Quality of Fresh Sweet Cherries and Strawberries with an Active Packaging System

Foods ◽  
2019 ◽  
Vol 8 (8) ◽  
pp. 335 ◽  
Author(s):  
Chiabrando ◽  
Garavaglia ◽  
Giacalone
Keyword(s):  
Weight Loss ◽  
Gas Permeability ◽  
Disease Incidence ◽  
Fruit Weight ◽  
Active Packaging ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Packaging System ◽  
Sweet Cherries

This study assessed the effect of the recently-introduced Life+ (ILIP, Valsamoggia, Italy) active packaging system on the postharvest quality of sweet cherries and strawberries. This system uses Equilibrium Modified Atmosphere Packaging (EMAP) to achieve specific intra-package conditions with three synergistic elements: an unvented and anti-mist heat sealable container, an active (naturally-antimicrobial) pad, and a heat-sealed, laser micro-perforated film of a specified gas permeability. Post-packaging quality parameters were monitored for 10 (strawberries) and 15 days (cherries): headspace gas concentration, weight loss, titratable acidity, total soluble solids, pH, disease incidence, and sensory quality. Results showed that use of the Life+ system delayed postharvest senescence by maintaining fruit color, acidity, and vitamin C content, and decreasing fruit weight loss and decay. The use of EMAP in sweet cherry resulted in enhanced sensory qualities compared to traditional perforated containers. The results suggest that the Life+ system leads to better sensory properties and improved shelf-life for strawberries and sweet cherries.

scholarly journals Storage Temperature Influences Postharvest Quality of Wild Plum (Ximmenia Americana L.) Fruit

2019 ◽  
Vol 60 (2) ◽  
pp. 1-10
Author(s):  
V. E. Emongor ◽  
G. Ramagonono
Keyword(s):  
Weight Loss ◽  
Vitamin C ◽  
Storage Temperature ◽  
Chilling Injury ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Soluble Solids Content ◽  
Solids Content

Wild plum has many medicinal, therapeutic and nutritive uses, but its fruits are collected in the wild and less researched. The aim of this study was to evaluate the effects of storage tem­perature on postharvest fruit quality of wild plum. The fruits of wild plum were subjected to different storage treatments at 0, 5, 10 and 15 ± 1°C in a completely randomized design. The results showed that as storage temperature decreased below 15°C, the incidence and severity of chilling injury significantly (p<0.05) increased. As storage temperature increased from 0 to 15°C fruit titratable acidity (TTA) and vitamin C content significantly (p< 0.05) decreased, but juice pH, soluble solids content (SSC) and weight loss significantly (p< 0.05) increased. The decrease in TTA and vitamin C content, and increase in SSC and juice pH was attributed to fruit ripening. The increase in fruit weight loss was attributed to higher transpiration and respiration. It was concluded that to extend the storage-life and marketing period of wild plum fruits, the fruits should be stored at 15°C and 90-95% RH. Keywords: Ximenia americana, Chilling injury and incidence, Vitamin C, Soluble solids content, Acidity

scholarly journals The expression of tin gene in prolongated tomato fruit ripening - Lycopersicom esculentum Mill.

Genetika ◽  
2003 ◽  
Vol 35 (2) ◽  
pp. 77-83 ◽  
Author(s):  
Jasmina Zdravkovic ◽  
Zivoslav Markovic ◽  
Milan Damjanovic ◽  
Milan Zdravkovic ◽  
Radisa Djordjevic
Keyword(s):  
Weight Loss ◽  
Shelf Life ◽  
Open Field ◽  
Fruit Ripening ◽  
Tomato Fruit ◽  
Fruit Weight ◽  
Fruit Firmness ◽  
Selection Programme ◽  
Tomato Fruit Ripening

Tomato selection programme, aiming to create a tomato hybrid with better fruit firmness, has been based on adding rin gene in perspective selection material. The fruit firmness has been based on decelerated ripening which prolongs the shelf life. Heterozygote genotypes (rin/+) have considerably longer shelf life that genotypes with uniform ripening (+/+). The effects of rin gene on shelf life have been examined on four experimental hybrids (K 56S K - 18, K - 64 and K -15 - rin/+ genetic configuration) compared with Atina Fl genotype (uniform ripening +/+) K - 91 selected, line (rin/rin) and Fino F1 (DRS) unknown genetic construction and very good fruit firmness. The parameter for shelf life has been the fruit weight loss during the preservation - from harvest till the fading. The weight loss has been recorded every 7th day during two months. The experimental hybrids showed good agro technical characteristics of mid early tomato intended for production in the open field. During the shelf life, the genotype K - 15 faded the most slowly, both in the group of green and mature fruits.

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