POSTHARVEST  QUALITY  OF  SWEET  CHERRY  FRUITS  AS  AFFECTED  BY  BIOREGULATORS

During the cold storage of sweet cherry, severe losses can occur due to the water loss, phytopathogenic fungi and physiological disorders. The aim of this research was to assess the effects of treatments with NAA (α-naphthaleneacetic acid), BA (6-benzyladenine), and GA3 (gibberellic acid) on fruit quality at harvest and after 21 days of storage under two regimes, including 0°C, RH (relative humidity) 90% and 3°C, RH 70%, and after additional shelf life exposure. Sweet cherry cultivars – ‘Summit’, ‘Kordia’ and ‘Regina’ – were treated with bioregulators at the end of flowering. NAA significantly increased the fruit weight at harvest compared to the control in all cultivars assessed. BA stimulated the fruit growth in ‘Kordia’ and ‘Regina’, while it was ineffective in ‘Summit’. GA3 caused significant increase in fruit weight by 8.3% in ‘Kordia’ only. Moreover, BA and GA3 induced a higher firmness of fruits at harvest. Weight loss of fruits during storage at 0°C, RH 90%, was increased with NAA and reduced with GA3 in ‘Regina’ only. BA and GA3 reduced the weight loss of sweet cherry fruits stored at 3°C, RH 70%. Bioregulator treatments increased TA (titratable acidity) in fruits at harvest, while the effects on TA during storage were variable depending on the cultivar. ‘Summit’ had the highest sensitivity to storage fruit rot. BA and GA3 decreased the disease occurrence on fruits stored at 0°C in ‘Summit’ and ‘Kordia’.

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Multi-year analyses on three populations reveal the first stable QTLs for tolerance to rain-induced fruit cracking in sweet cherry (Prunus avium L.)

Horticulture Research ◽

10.1038/s41438-021-00571-6 ◽

2021 ◽

Vol 8 (1) ◽

Author(s):

José Quero-García ◽

Philippe Letourmy ◽

José Antonio Campoy ◽

Camille Branchereau ◽

Svetoslav Malchev ◽

...

Keyword(s):

Confidence Intervals ◽

Sweet Cherry ◽

Prunus Avium ◽

Linear Models ◽

Basic Research ◽

Fruit Weight ◽

Phenotypic Variance ◽

Fruit Cracking ◽

The Stability ◽

Sweet Cherry Cultivars

AbstractRain-induced fruit cracking is a major problem in sweet cherry cultivation. Basic research has been conducted to disentangle the physiological and mechanistic bases of this complex phenomenon, whereas genetic studies have lagged behind. The objective of this work was to disentangle the genetic determinism of rain-induced fruit cracking. We hypothesized that a large genetic variation would be revealed, by visual field observations conducted on mapping populations derived from well-contrasted cultivars for cracking tolerance. Three populations were evaluated over 7–8 years by estimating the proportion of cracked fruits for each genotype at maturity, at three different areas of the sweet cherry fruit: pistillar end, stem end, and fruit side. An original approach was adopted to integrate, within simple linear models, covariates potentially related to cracking, such as rainfall accumulation before harvest, fruit weight, and firmness. We found the first stable quantitative trait loci (QTLs) for cherry fruit cracking, explaining percentages of phenotypic variance above 20%, for each of these three types of cracking tolerance, in different linkage groups, confirming the high complexity of this trait. For these and other QTLs, further analyses suggested the existence of at least two-linked QTLs in each linkage group, some of which showed confidence intervals close to 5 cM. These promising results open the possibility of developing marker-assisted selection strategies to select cracking-tolerant sweet cherry cultivars. Further studies are needed to confirm the stability of the reported QTLs over different genetic backgrounds and environments and to narrow down the QTL confidence intervals, allowing the exploration of underlying candidate genes.

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Potential of Postharvest Coatings to Maintain Freshness of Red-Fleshed Pitaya (Hylocereus costaricensis)

Agriculture ◽

10.3390/agriculture11090892 ◽

2021 ◽

Vol 11 (9) ◽

pp. 892

Author(s):

Nur Azlin Razali ◽

Steven A. Sargent ◽

Charles A. Sims ◽

Jeffrey K. Brecht ◽

Adrian D. Berry ◽

...

Keyword(s):

Weight Loss ◽

Tap Water ◽

Titratable Acidity ◽

Quality Parameters ◽

The Other ◽

Soluble Solids ◽

Postharvest Quality ◽

Quality Factors ◽

Climacteric Fruit

Pitaya is a non-climacteric fruit that has white or red flesh with numerous small, black seeds. It has a high moisture content; however, water loss during handling and storage negatively affects the fresh weight, firmness and appearance of the fruit, decreasing market value. Application of compatible postharvest coatings has been shown to benefit postharvest quality of many crops. The objective of this study was to evaluate the effect of two commercial coatings on weight loss and quality of pitaya during storage. Pitaya fruit were commercially harvested and sorted for uniformity of size and freedom from defects. Fruit were briefly immersed in either a vegetable oil-based coating (VOC; Sta-Fresh® 2981) or a carnauba-based coating (CC; Endura-Fresh™ 6100) according to manufacturer’s recommendations. Fruit immersed in tap water served as a control. Fruit were fan-dried at room temperature for 20 min, then stored at 7 °C with 85% relative humidity (RH) and evaluated for selected physical quality parameters each 5 days during 20 days. After each evaluation, fruit were peeled and frozen for later analysis of soluble solids content (SSC), total titratable acidity (TTA); on day 15 fresh samples were evaluated by an untrained consumer sensory panel. CC prevented exocarp shriveling for 15 days of storage, compared to uncoated pitaya (16.3% area affected); shriveling in VOC was intermediate and not significantly different from the other treatments. Mesocarp firmness remained constant throughout 15 days of storage regardless of treatment. Fruit exocarp h* angle increased slightly by day 20, becoming slightly less red, and there were no negative treatment effects for the other quality factors measured: SSC (11.33%), TTA (0.25%), weight loss (5.5%) or sensory evaluations (appearance, flavor, texture, firmness, and juiciness). After 20 days storage, appearance for fruit from all treatments was rated unacceptable due to development of anthracnose lesions. It was concluded that both CC and VOC maintained quality of pitaya for 15 days at 7 °C and 85% RH by delaying exocarp shriveling.

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Products of Lactobacillus delbrueckii subsp. bulgaricus Strain F17 and Leuconostoc lactis Strain H52 Are Biopreservatives for Improving Postharvest Quality of ‘Red Globe’ Grapes

Microorganisms ◽

10.3390/microorganisms8050656 ◽

2020 ◽

Vol 8 (5) ◽

pp. 656 ◽

Cited By ~ 1

Author(s):

Xiang Fang ◽

Qinchun Duan ◽

Zhuo Wang ◽

Fuyun Li ◽

Jianxiong Du ◽

...

Keyword(s):

Weight Loss ◽

Decay Rate ◽

Titratable Acidity ◽

Inhibitory Effect ◽

Lactobacillus Delbrueckii ◽

Soluble Solids ◽

Postharvest Quality ◽

Table Grapes ◽

Solids Content

‘Red Globe’ table grapes are large, edible, seeded fruit with firm flesh that tastes good, but can have poor postharvest shelf-life. This study was conducted to explore the effects of products of Lactobacillus delbrueckii subsp. bulgaricus strain F17 and Leuconostoc lactis strain H52 on ‘Red Globe’ table grapes for the enhancement of shelf-life and improvement of grape quality characteristics during postharvest storage. Strains F17 and H52 were isolated from traditional fermented yak milk obtained in the Qinghai–Tibetan Plateau. Samples from untreated and treated grapes were analyzed for physicochemical, biochemical, and microbiological properties (weight loss, decay rate, pH, total soluble solids content, titratable acidity, total phenols, sensory evaluation, and microbial growth) for 20 days. The results demonstrated that supernatants from both strains significantly reduced weight loss, decay rate, aerobic mesophilic bacteria, and coliform bacteria counts; delayed maturity and senescence of table grapes; and reduced titratable acidity and total phenols. However, the supernatant of strain F17 was more effective and resulted in better sensory evaluations and had a significant inhibitory effect on yeast and molds by day 5. Meanwhile, the supernatant from strain H52 had a significant inhibitory effect on fungi over the whole storage period. In addition, the results of the Pearson correlation analysis suggested that weight loss, decay rate, total soluble solids content, and microorganisms were highly correlated with the sensory evaluation data and quality of postharvest grapes when treated with the products of strain F17. On the basis of these data and sensory organoleptic qualities, the supernatant containing products from strain F17 had the best potential as a biopreservative to improve the postharvest quality of ‘Red Globe’ table grapes.

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Effect of irrigation on postharvest quality of two sweet cherry cultivars (Prunus aviumL.)

Acta Horticulturae ◽

10.17660/actahortic.2017.1161.106 ◽

2017 ◽

pp. 667-672 ◽

Cited By ~ 2

Author(s):

B. Velardo-Micharet ◽

L. Peñas Díaz ◽

I.M. Tapia García ◽

E. Nieto Serrano ◽

C. Campillo Torres

Keyword(s):

Sweet Cherry ◽

Postharvest Quality ◽

Sweet Cherry Cultivars

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Effect of hyperbaric treatments on the quality attributes of tomato

Canadian Journal of Plant Science ◽

10.4141/cjps2011-168 ◽

2012 ◽

Vol 92 (3) ◽

pp. 541-551 ◽

Cited By ~ 15

Author(s):

Bernard Goyette ◽

Clément Vigneault ◽

Marie Thérèse Charles ◽

Vijaya G. S. Raghavan

Keyword(s):

Weight Loss ◽

Tomato Fruit ◽

Titratable Acidity ◽

Quality Attributes ◽

Soluble Solids ◽

Postharvest Quality ◽

Ambient Conditions ◽

Hyperbaric Treatment ◽

Acid Ratio ◽

Significant Difference

Goyette, B., Vigneault, C., Charles, M. T. and Raghavan, V. G. S. 2012. Effect of hyperbaric treatments on the quality attributes of tomato. Can. J. Plant Sci. 92: 541–551. An experimental hyperbaric system was conceptualized, designed and built to explore the effect of hyperbaric treatment on the quality attributes of tomato. Tomato fruits at the early breaker stage were subjected to hyperbaric pressures of 1, 3, 5, 7 or 9 atmabs for different durations (5, 10 or 15 d) at 13°C. The effect of hyperbaric treatment on postharvest quality of tomato fruit was evaluated with an emphasis on weight loss, firmness, color, titratable acidity (TA) and total soluble solids (TSS). Hyperbaric treated tomato fruit ripened more slowly and were characterized by lower respiration rate than fruits kept under ambient conditions. Significant differences in weight loss, color, lycopene concentration and firmness were found between hyperbaric treated and control tomato fruit. No significant difference was found in the sugar/acid ratio (TSS/TA).

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Effect of Different Waxing Materials on the Quality and Shelf Life of Mysore Banana Variety

Asian Journal of Advanced Research and Reports ◽

10.9734/ajarr/2020/v12i130277 ◽

2020 ◽

pp. 1-11

Author(s):

P. Kumah ◽

P. K. Tandoh ◽

K. S. Konadu

Keyword(s):

Weight Loss ◽

Shelf Life ◽

Value Chain ◽

Titratable Acidity ◽

Cassava Starch ◽

Fruit Weight ◽

Matter Content ◽

Soluble Solids ◽

Dry Matter Content ◽

Quality And Shelf Life

Banana is a climacteric fruit with a short shelf life. As a result, huge losses are incurred during handling in the value chain. The need to develop means of extending the shelf life and concomitantly maintaining the quality of the fruit after harvest has become very important. This study was conducted to determine the effects of two different edible waxing materials (beeswax and cassava starch) used as coatings on the quality and shelf life of Mysore banana. The study was conducted in the laboratory at the Department of Horticulture, Kwame Nkrumah University of Science and Technology–Kumasi. The experiment was laid out in a simple completely randomized design (CRD) and replicated three (3) times with three treatments (beeswax, cassava starch and a control). Parameters studied were: fruit weight loss, firmness, peel colour, pulp-to-peel ratio, moisture content (MC), dry matter content (DMC), total titratable acidity (TTA), total soluble solids (TSS), pH, green life and shelf life. The results showed beeswax and cassava starch had no significant effect (P>0.01) on peel colour, fruit firmness, TTA, TSS, DMC, MC and green life. Beeswax, however, kept weight loss minimal, and reduced TSS and the pulp-to-peel ratio of the fruits during storage. We conclude that beeswax was the best treatment in terms of waxing Mysore banana fruits to maintained its quality and ultimately prolonged its shelf life by about four (4) days more than the control.

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Postharvest Quality of Tommy Atkins Mangoes Coated With Cassava Starch and Chitosan-Based Coatings

Journal of Agricultural Science ◽

10.5539/jas.v10n11p401 ◽

2018 ◽

Vol 10 (11) ◽

pp. 401

Author(s):

T. A. Oliveira ◽

C. A. Paiva ◽

A. C. Silva ◽

L. V. Nascimento ◽

R. H. L. Leite ◽

...

Keyword(s):

Weight Loss ◽

Reducing Sugars ◽

Soluble Sugars ◽

Titratable Acidity ◽

Cassava Starch ◽

Soluble Solids ◽

Postharvest Quality ◽

Total Soluble Sugars ◽

Randomized Design

This study aimed to evaluate postharvest quality of Tommy Atkins mangoes treated with starch cassava and chitosan based coatings. Mango fruits were collected at physiological maturity. After cleaning, weighing and identification, fruits were submitted to the respective treatments and stored for 35 days in the Laboratório de Tecnologia de Alimentos, with weekly evaluations under refrigeration 13±1 ºC and 90±5% RH. The experiment was conducted in a completely randomized design, in factorial scheme with four treatments: control, cassava starch (CS), chitosan (CH), and cassava starch/chitosan (CS/CH) at a concentration of 2%, and six storage periods (0, 7, 14, 21, 28 and 35 days) with four replications. Fruits were evaluated in: appearance, weight loss, external color: luminosity and ΔE, pulp firmness, titratable acidity, soluble solids content, starch, total soluble sugars, reducing sugars and sucrose. Data were submitted to analysis of variance using SISVAR software and compared by Scott-Knott test at 5% of probability. It was observed a reduction in appearance, pulp firmness, titratable acidity, starch and reducing sugars and increase in weight loss, luminosity, ΔE, soluble solids, total soluble sugars and non-reducing sugars during storage. CS/CH coated fruits reported higher notes of appearance, lower weight loss and maintained color. Quality of physicochemical attributes: soluble solids, starch, total soluble sugars, reducing sugars and non-reducing sugars were strongly retarded.

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Fruit Characteristics of Autochthonous Sweet Cherry Cultivars (Prunus avium L.) from the Banjaluka Region

Агрознање ◽

10.7251/agren1704285r ◽

2018 ◽

Vol 18 (4) ◽

pp. 285

Author(s):

Ljubomir Radoš ◽

Tanja Krmpot ◽

Fejzo Begović

Keyword(s):

Sweet Cherry ◽

Prunus Avium ◽

Fruit Weight ◽

Soluble Solids ◽

Fruit Characteristics ◽

Rich Diversity ◽

Production And Consumption ◽

Solids Content ◽

Individual Trees ◽

Sweet Cherry Cultivars

Banjaluka region is characterized by a very rich diversity of old and autochthonous sweet cherry cultivars, which represent a very important genetic potential for future breeding programs. Autochthonous sweet cherry cultivars are spontaneously propagated and used in very few areas for production and consumption in the fresh condition. A very small percentage of autochthonous cultivars are used in local markets or in some forms of processing. The main reason for this is the small number of individual trees whose fruits are used for own household and their poor management. In order to popularize the production and sale of autochthonous sweet cherry cultivars, during this research was perform the basic pomological measurements of the five most common autochthonous sweet cherry cultivars in the Banjaluka region (Ašlamka, Banjalučka crnica, Bjelica-Biljur, Cipov and Crveni hrušt). Pomological (the weight and dimensions of the fruit, weight and dimensions of the pit, dimension of the stalk and the firmness of the fruit flesh) and chemical (total soluble solids content of the fruit) fruit characteristics were determined. Results showed differences in investigated parameters between the cultivars.

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Postharvest quality of peaches harvested from integrated and conventional production systems

Pesquisa Agropecuária Brasileira ◽

10.1590/s0100-204x2007000600005 ◽

2007 ◽

Vol 42 (6) ◽

pp. 793-801 ◽

Cited By ~ 1

Author(s):

Eduardo Seibert ◽

Michel Elias Casali ◽

Marcos Laux de Leão ◽

Ernani Pezzi ◽

Adriana Regina Corrent ◽

...

Keyword(s):

Prunus Persica ◽

Production Systems ◽

Titratable Acidity ◽

Fruit Weight ◽

Soluble Solids ◽

Postharvest Quality ◽

Weight Losses ◽

Conventional Production ◽

The City

Over three years the postharvest quality of 'Marli' peaches harvested from the integrated (IFP) and conventional production (CFP) systems was evaluated. The peaches were harvested from commercial orchards of Prunus persica at two locations close to the city of São Jerônimo, RS, Brazil, and stored at 0.5°C for 10, 20 or 30 days. The peaches were evaluated at harvest, at retrieval from storage and after ripening periods at 20°C. No differences in fruit weight losses were determined. Decay incidence was low, and no differences were detected amongst systems in both 2001 and 2002 seasons, but in the 2000 season CFP peaches were more decayed. Flesh firmness of peaches from the IFP system were greater than CFP fruits in the years 2000 and 2001. In 2002, firmness changed little during storage and ripening. Peaches from the IFP in 2000 had higher titratable acidity and lower soluble solids. In the 2000 season, flesh browning was observed in decayed fruits, always at ripening after 20 or 30 days of cold storage Chilling injuries such as browning, woolliness and leatheriness ocurred in 2002. There were no differences amongst systems related to peach quality.

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Comparison of Five New Sweet Cherry Cultivars Bred in Romania, with their Parental Forms

Journal of Horticultural Research ◽

10.2478/johr-2021-0008 ◽

2021 ◽

Vol 0 (0) ◽

Author(s):

Margareta Corneanu ◽

Elena Iurea ◽

Sorina Sirbu

Keyword(s):

Sweet Cherry ◽

Total Content ◽

Titratable Acidity ◽

Frost Damage ◽

Research Station ◽

North East ◽

Chemical Traits ◽

Sweet Cherry Cultivars ◽

Physical And Chemical ◽

New Cultivars

Abstract The studies were performed for four consecutive years (2016–2019) at the Fruit Growing Research Station (North-East part of Romania), using eleven sweet cherry genotypes as research material. Five of them are new cherry cultivars – ‘Cătălina’, ‘Andreiaş’, ‘Maria’, ‘George’, and ‘Margonia’ – obtained by means of controlled hybridization or open pollination, and six of them are their progenitors (‘Van’, ‘Boambe de Cotnari’, ‘Stella’, ‘Fromm’, ‘Ciliegia di Ottobre’, and the ‘HC 27/4’ hybrid). The experiment compared the traits of new cultivars with those of their progenitors. The following traits were evaluated: tree vigor, frost damage, the phenological stages, and the physical and chemical traits of the fruit. The highest values concerning the fruit's weight have been recorded for ‘Andreiaş’ (10.0 g) and ‘Maria’ (7.6 g), the content of soluble substance was between 16.6 and 19.5°Brix, the titratable acidity was between 0.413 and 0.675 mg malic acid·100 mL−1 juice, and the total content of polyphenols was recorded with values between 268.00 and 488.75 mg GAE·100 mL−1 of fresh juice. The new cultivars have mostly superior traits, especially frost damages, productivity, fruit quality, and fruit's cracking percentage compared with their parental genotypes.

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