scholarly journals Adaptability and stability of peach and nectarine cultivars in subtropical climate

Revista CERES ◽  
2017 ◽  
Vol 64 (5) ◽  
pp. 516-522 ◽  
Author(s):  
Rosana Gonçalves Pires Matias ◽  
Claudio Horst Bruckner ◽  
Danielle Fabíola Pereira da Silva ◽  
Pedro Crescêncio Souza Carneiro ◽  
João Alison Alves de Oliveira
Keyword(s):  
Cycle Length ◽  
Titratable Acidity ◽  
Fruit Production ◽  
Fresh Mass ◽  
Soluble Solids ◽  
Subtropical Climate ◽  
Production Potential ◽  
Phenotypic Stability ◽  
The Stability ◽  
Fruit Mass

ABSTRACT Information on adaptability and stability of fruit production in different environments or years is crucial to increasing agricultural production potential. Therefore, the objective of this study was to evaluate whether there is interaction between cultivars and years, as well as to assess the stability of peach and nectarine cultivars regarding fruit fresh mass, SS/TA ratio, and cycle length in Viçosa -MG, Brazil. The characteristics fruit fresh mass (FM), soluble solids/titratable acidity ratio (SS/TA), and cycle length (CL) were evaluated in 28 cultivars of peach and two cultivars of nectarine from the orchard of the Universidade Federal de Viçosa, in 2011, 2012, and 2013. The methods used to determine the phenotypic stability across time were Eberhart & Russell (1966) and the Traditional. The interaction cultivars x years was significant for all traits. Cultivar ‘Josefina’ showed broad adaptability for SS/TA ratio, and cultivars ‘Flordaprince’ and ‘Tropical’ for cycle length. For favorable environments, the cultivars ‘Capdebosq’ and ‘Maciel’ are indicated regarding the characteristic fruit mass, and ‘Coral’ and ‘Talismã’ for SS/TA ratio. ‘Rubimel’ was adaptable to unfavorable environments regarding fruit mass.

scholarly journals Phenology, production and quality of blueberry produced in humid subtropical climate

2018 ◽  
Vol 40 (3) ◽  
Author(s):  
José Gilberto Sousa Medeiros ◽  
Luiz Antonio Biasi ◽  
Claudine Maria de Bona ◽  
Francine Lorena Cuquel
Keyword(s):  
Fruit Set ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Subtropical Climate ◽  
Blue Color ◽  
Productive Performance ◽  
Climate Conditions ◽  
Mass Size ◽  
Fruit Mass

Abstract Studies on adaptation to the cultivation site are necessary for the recommendation of new cultivars. The aim of this study was to evaluate the phenological development, productivity and fruit quality of eight blueberry cultivars from the rabbiteye group (Aliceblue, Bluebelle, Bluegem, Briteblue, Climax, Delite, Powderblue and Woodard) and two from the highbush group (Georgiagem and O’Neal) under humid subtropical conditions in the 2012/2013, 2013/2014 and 2014/2015 cycles. Beginning and end of flowering, beginning and end of harvesting, fruit set, production, mass, diameter, pH, content of soluble solids, titratable acidity, ratio and coloring were evaluated. The evaluated cultivars presented flowering in the period from July to September, concentrating harvest in the months of November and December. The highest fruit set was observed in Delite, Climax, Briteblue and Powderblue cultivars. There were differences among cultivars regarding fruit mass, size, pH, content of soluble solids and acidity. The results showed that the cultivars exhibited blue color with few variations over the evaluation years. Cultivars with the best productive performance under humid subtropical climate conditions are Bluegem, Delite, Climax and Powderblue.

scholarly journals Phenotypic stability of strawberry cultivars based on physicochemical traits of fruits

2019 ◽  
Vol 37 (1) ◽  
pp. 75-81 ◽  
Author(s):  
André Gabriel ◽  
Juliano TV de Resende ◽  
André Ricardo Zeist ◽  
Luciane V Resende ◽  
Nathalia CV Resende ◽  
...  
Keyword(s):  
Vitamin C ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Phenotypic Stability ◽  
Consumer Market ◽  
Ammi Analysis ◽  
And Performance ◽  
The Stability ◽  
Main Effects ◽  
Strawberry Cultivars

ABSTRACT Strawberry shows genetic variability between cultivars and, environmental elements affect the physicochemical traits of fruits when assessed under different environments. So, assessment of the stability of physicochemical traits is a tool that assists the producer in the choice of the cultivar with higher acceptance in the consumer market. This study aimed to assess the stability of strawberry cultivars based on physicochemical traits of fruits on three environments using the additive main effects with multiplicative interaction (AMMI) analysis. Thirteen strawberry cultivars were assessed in Lavras-MG, Uberlândia-MG, and Guarapuava-PR. The experimental design was in blocks with treatments at random and four replications. The stability of physicochemical traits of fruits (firmness, soluble solids, titratable acidity, soluble solids to titratable acidity ratio, vitamin C, and anthocyanins) was assessed. For the stability and performance of physicochemical traits under the three environments, the cultivars Tudla and Festival stood out for fruit firmness, Albion for soluble solids, Aromas and Tudla for titratable acidity, Sweet Charlie and Palomar for soluble solids to titratable acidity ratio, and Camarosa for vitamin C and anthocyanins.

scholarly journals Cold storage of peaches cv. Aurora grown in the Zona da Mata Mineira, Minas Gerais State, Brazil

Revista CERES ◽  
2013 ◽  
Vol 60 (6) ◽  
pp. 833-841 ◽  
Author(s):  
Danielle Fabíola Pereira Silva ◽  
Mariana Rodrigues Ribeiro ◽  
José Osmar da Costa e Silva ◽  
Rosana Gonçalves Pires Matias ◽  
Claudio Horst Bruckner
Keyword(s):  
Ascorbic Acid ◽  
Mass Loss ◽  
Storage Period ◽  
Ascorbic Acid Content ◽  
Titratable Acidity ◽  
Minas Gerais ◽  
Fresh Mass ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Co2 Production

This study aimed to evaluate the postharvest behavior of peach cv. Aurora 1 harvested in the Zona da Mata region of Minas Gerais in two ripening stages and kept under different storage temperatures. Fruits on mid-ripe and fully ripe stages were stored at three temperatures: 5.6 ± 1.57 °C and 72.8 ± 3.8% RH; 10.4 ± 0.5 °C and 95.8 ± 5.5% RH; 21.04 ± 1.63 °C and 96.9 ± 2.6% RH up to 28 storage days (SD) . During storage, fruits stored at 21.04 ± 1.63 °C were evaluated every two days until 8 SD, and every four days for fruits stored at other temperatures. The harvest day was assigned as day zero. The variables evaluated were CO2 production, color of the pericarp and pulp, fresh mass loss, flesh firmness, total soluble solids, titratable acidity, contents of ascorbic acid and carotenoids. The fresh mass loss increased during storage, peaking at 5.6 °C. The reduction in ascorbic acid content was higher in fully ripe fruits at all temperatures. Mid-ripe fruits reached the end of the storage period with better quality. The temperature of 10.4 °C was the most efficient in keeping postharvest quality of peach cv. Aurora 1 harvested in the Zona da Mata region.

scholarly journals Fruit quality of ‘Eva’ e ‘Princesa’ apples grown under nitrogen fertigation in semiarid climate

2015 ◽  
Vol 19 (10) ◽  
pp. 967-972 ◽  
Author(s):  
João M. de S. Miranda ◽  
Ítalo H. L. Cavalcante ◽  
Inez V. de M. Oliveira ◽  
Paulo R. C. Lopes ◽  
Joston S. de Assis
Keyword(s):  
Fruit Quality ◽  
Skin Color ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Economic Viability ◽  
Fruit Firmness ◽  
Fruit Characteristics ◽  
Apple Cultivars ◽  
Fruit Mass

ABSTRACTThe production of high quality fruits is a necessary factor for the adaptation and production of plant species with economic viability. Thus, an experiment was conducted from July 2012 to January 2013 to evaluate the fruit quality of the ‘Eva’ and ‘Princesa’ apple cultivars as a function of nitrogen fertilization in Petrolina, PE, Brazil. The experimental design consisted of randomized blocks, with treatments distributed in a factorial arrangement 2 x 4, corresponding to apple cultivars (Eva and Princesa) and nitrogen doses (40; 80; 120 and 160 kg of N ha-1), with four replications and three plants in each plot. The fruit characteristics, such as fruit mass, skin color (luminosity, chromaticity, and colour angle), size (width and length), pulp firmness, titratable acidity (TA), soluble solids (SS) and the SS/TA ratio, were recorded. Nitrogen doses do not affect fruit quality of studied apple cultivars. The fruit quality attributes are different between apple cultivars: fruit firmness, SS/TA ratio, fruit mass and fruit diameter are superior for Princesa cultivar, while the fruit length for Eva cultivar is superior.

scholarly journals HYDROCOOLING EFFICIENCY ON POSTHARVEST CONSERVATION AND QUALITY OF ARUGULA

2019 ◽  
Vol 6 (4) ◽  
pp. 36-41
Author(s):  
Elaine Gleice Silva Moreira ◽  
Scarlet Aguiar Basílio ◽  
Mariany Dalila Milan ◽  
Natália Arruda ◽  
Katiane Santiago Silva Benett
Keyword(s):  
Mass Loss ◽  
Respiratory Rate ◽  
Shelf Life ◽  
Water Loss ◽  
Cold Water ◽  
Subjective Evaluation ◽  
Storage Period ◽  
Titratable Acidity ◽  
Fresh Mass ◽  
Soluble Solids

Arugula is mainly cultivated by small producers, being a leafy vegetable susceptible to water loss and wilting after harvest, which may result in changes in appearance, texture, color (yellowing), and nutritional value of the product. Hydrocooling is a cooling method that stands out for being simple, practical and efficient. Its use is to reduce the temperature and respiratory rate of vegetables after harvesting by immersion in ice or cold water, so they can be packed and stored. This study was conducted to evaluate the hydrocooling efficiency when associated with the storage period in the postharvest shelf life of arugula leaves. Arugula leaves were subjected to ten days of storage, and measurements were taken at 0, 2, 4, 6, 8 and 10 days. The experimental design was completely randomized in a 3 × 6 factorial scheme, consisting of three hydrocooling treatments [control (without cooling), and hydrocooling at 0 °C and 10 °C] and for six storage periods (0, 2, 4, 6, 8 and 10 days) with three replicates. Fresh mass loss, soluble solids, titratable acidity, pH and subjective evaluation of product appearance were measured. Hydrocooling at 0 °C proved to be the most appropriate treatment when compared to control, as reported by the values of fresh mass loss, soluble solids, and titratable acidity. Hydrocooling to 0 °C slowed leaf water loss (lower respiratory rate) and resulted in better overall leaf appearance up to the sixth day of storage, thereby increasing shelf life of arugula leaves.

scholarly journals Melon fruit yield and quality as a function of doses and times of biostimulant application

2020 ◽  
Vol 9 (7) ◽  
pp. e130973911
Author(s):  
Roberto Cleiton Fernandes de Queiroga ◽  
Zaqueu Lopes da Silva ◽  
Odair Honorato Oliveira de ◽  
Elidayane da Nóbrega Santos ◽  
Higínio Luan Oliveira Silva ◽  
...  
Keyword(s):  
Block Design ◽  
Fruit Production ◽  
Soluble Solids ◽  
Application Time ◽  
Time Of Application ◽  
Yield And Quality ◽  
Randomized Block Design ◽  
Semi Arid Region ◽  
Fruit Mass

The objective of this study was to evaluate the productivity and quality of melon fruits as a function of the dose and time of application of biostimulant in the conditions of the semi-arid region of Paraíba. The experiment was carried out at the Federal University of Campina Grande, campus of Pombal - PB, Brazil, in a randomized block design in a 4 x 5 split plot scheme, with doses of biostimulant (0; 0.5; 1.0; 1, 5 and 2.0 L ha-1) and in the subset of the biostimulant application times (15; 20; 25 and 30 days before harvest - DAC), in four replications. Characteristics related to fruit production and quality were evaluated. There was no interaction between the factors of dose and application time of the biostimulant in any of the evaluated characteristics. Thus, the highest estimated values of number of fruits per plant, fruit mass and total melon production were obtained with the application of doses ranging from 0.9 to 1.5 L ha-1 and at the time of application it varied from 22,5 to 23.6 DAC. The content of soluble solids increased 5.5% when the biostimulant dose of 2.0 L ha-1 was used and 4.4% when the product was applied 15 days before harvest.

scholarly journals Influence of stock on physical and chemical traits of fresh apricot fruit

2013 ◽  
Vol 27 (1) ◽  
pp. 111-114 ◽  
Author(s):  
T. Milošević ◽  
N. Milošević ◽  
I. Glišić ◽  
G. Šekularac
Keyword(s):  
Titratable Acidity ◽  
The Other ◽  
Soluble Solids ◽  
Fruit Firmness ◽  
Soluble Solids Content ◽  
Total Sugars ◽  
Solids Content ◽  
Chemical Traits ◽  
Physical And Chemical ◽  
Fruit Mass

Abstract The study was conducted to determine the effects of Myrobalan rootstock and Blackthorn interstock on fruit physical and chemical traits of five apricot cultivars. The results showed that cultivars grafted on Myrobalan rootstock appear to induce a higher fruit mass when compared with the Blackthorn interstock. Blackthorn interstock showed a tendency to induce a higher soluble solids/titratable acidity ratio than Myrobalan. Values of soluble solids content, total sugars, titratable acidity and fruit firmness between Myrobalan rootstock and Blackthorn interstock were not significant. Regarding cultivars, the greatest fruit mass observed in Roxana in both treatments, and the lowest in Biljana on Myrobalan and in Vera on Blackthorn. The lowest soluble solids, total sugars and soluble solids/titratable acidity ratio were found in Roxana in both variants of grafting, whereas the greatest titratable acidity also observed in Roxana in both cases, respectively. Based on the results from this study, the fruits of Roxana can be recommended for fresh consumption, whereas fruits of the other cultivars can be recommended for processing.

scholarly journals Critical points of industrial tomato from field to processing

2018 ◽  
Vol 36 (4) ◽  
pp. 521-525 ◽  
Author(s):  
Luis Eduardo de Moura ◽  
Adelmo Golynski
Keyword(s):  
Critical Points ◽  
Titratable Acidity ◽  
Raw Material ◽  
Fresh Mass ◽  
Soluble Solids ◽  
Physico Chemical ◽  
Efficient Communication ◽  
Production Stages ◽  
Material Temperature ◽  
Truck Arrival

ABSTRACT The authors evaluated critical points of production stages of the industrial tomato, through physical and physico-chemical analyzes of U2006 hybrid fruits in the harvest, 2016. Fruits were evaluated in relation to raw material, temperature, fresh mass, pH, soluble solids (°Brix), firmness, titratable acidity and extravasation of electrolytes. Samples were collected in six steps: manual, mechanized, truck, arrival at industry, unloading and selection mat in two periods, morning and afternoon, totalizing 60 fruits for each step, and four replications. Fruits which waited for more than 10 hours in the yard generated an increase in serious defects (%), loss of fresh mass, discount on the amount paid for the load. The most critical stages of the production process were identified when tomatoes arrived at the industry and their unloading, when the fruits presented fresh mass loss due to the high temperature. In addition, the authors highlight that a better organization in the arrivals at the industry as well as an efficient communication of crop restriction is crucial, since unscheduled stops increase waiting time, causing significant quality losses.

scholarly journals Stability of Kiwi Varieties of ‘Hayward’ in Powder During Storage

2020 ◽  
Vol 8 (2) ◽  
pp. 150
Author(s):  
Inacia Dos Santos Moreira ◽  
Jacinete Pereira Lima ◽  
Deise Souza de Castro ◽  
Wilton Pereira da Silva ◽  
Josivanda Palmeira Gomes ◽  
...  
Keyword(s):  
Water Activity ◽  
Bioactive Compounds ◽  
Titratable Acidity ◽  
Physicochemical Characteristics ◽  
Soluble Solids ◽  
Total Chlorophyll ◽  
Lower Content ◽  
Total Water ◽  
Ph Values ◽  
The Stability

For the preservation of products obtained by dehydration, it is necessary to evaluate their physicochemical characteristics during storage. It was proposed, in the present study, to evaluate the stability of the kiwi cv. ‘Hayward’ powder, obtained at temperatures of 60 and 70 °C during its storage in laminated packages under controlled conditions of temperature (25 ºC) and relative humidity (75%) for 90 days. The parameter’s evaluated were: moisture content, ashes, soluble solids, titratable acidity (% citric acid), pH, water activity at 25 ºC, color for the parameters lightness (L*) and chromaticity (+a* red; -a* green; +b* yellow; and -b* blue), phenolic compounds, flavonoids, total chlorophyll and carotenoids. It was observed that, after the 90 days, for the powder obtained at 70 °C, the soluble solids and pH values were altered by the storage, which did not occur for the powder obtained at 60 °C. For both powders, the content of ash and bioactive compounds were not affected by storage. The parameter of lightness decreased in both powders. The powder obtained at 70 ºC proved to be better, showing lower content of moisture and total water activity, as well as the highest values of bioactive compounds.

scholarly journals Strobilurin and boscalid in the quality of net melon fruits

2017 ◽  
Vol 38 (2) ◽  
pp. 543 ◽  
Author(s):  
Ana Claudia Macedo ◽  
Amanda Cristina Esteves Amaro ◽  
Anamaria Ribeiro Pereira Ramos ◽  
Elizabeth Orika Ono ◽  
João Domingos Rodrigues
Keyword(s):  
Cucumis Melo ◽  
Titratable Acidity ◽  
High Ratio ◽  
Soluble Solids ◽  
Active Principle ◽  
Physiological Effects ◽  
Physical Chemical ◽  
Hormonal Balance ◽  
Fruit Mass

Until recently, fungicides were used exclusively for disease control; however observations of physiological effects brought a new concept to the use of these products. Strobilurins have positive physiological effects on crop yield, due to the increase of liquid photosynthesis and better hormonal balance. However, boscalid complements the action of these fungicides, applied alternately or together. The aim of this study was to evaluate the effect of strobilurins (azoxystrobin and pyraclostrobin), boscalid and the mixture of these on the physical-chemical quality of net melon fruits (Cucumis melo var. Reticulatus). The experiment was conducted in the municipality of São Manuel (SP), using the hybrid of Cantaloupe M2-308 net melon, the experimental design was in randomized blocks with five replicates. The treatments used were: T1 - control; T2 - azoxystrobin 60g ha-1 of active principle (a.p.); T3 - boscalid 75g ha-1 of the a.p.; T4 - pyraclostrobin 50g ha-1 of the a.p.; T5 - boscalid (37,5g ha-1) of the a.p. + pyraclostrobin (25g ha-1) of the a.p. The first application of the treatments was carried out at fourteen days after the transplanting of the seedlings and the others at seven day intervals, totaling eight applications throughout the cycle. Two fruits of each plot were collected, which were identified for analysis in the laboratory. The following characteristics were evaluated: fresh fruit mass; mesocarp thickness, pulp texture, peel trajectory, pH, titratable acidity, soluble solids and the ratio. The results were submitted to analysis of variance and the averages compared by the Tukey test at 5% probability using the SISVAR program. The fruits of the plants treated with boscalid 75g ha-1 were the ones that showed higher concentration of soluble solids and low titratable acidity, resulting in a better ratio. Despite the lower value, the fruits of the plants treated with pyraclostrobin 50g ha-1 showed a high ratio value, besides presenting higher value for pulp texture. The mixture of boscalid (37.5g ha-1) + pyraclostrobin (25g ha-1) also showed high values of soluble solids which resulted in a good “ratio” value.

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