scholarly journals Monitoring the Flesh Softening and the Ripening of Peach during the Last Phase of Growth On-tree

HortScience ◽  
2016 ◽  
Vol 51 (8) ◽  
pp. 995-1000 ◽  
Author(s):  
Catalina Pinto ◽  
Gabino Reginato ◽  
Karen Mesa ◽  
Paulina Shinya ◽  
Mariana Díaz ◽  
...  
Keyword(s):  
Growth Rate ◽  
Mixed Models ◽  
Intersection Point ◽  
Soluble Solids ◽  
Repeated Sampling ◽  
Accumulated Temperature ◽  
The Difference ◽  
Solids Content ◽  
Fruit Mass ◽  
Tree Development

The aims of this study were to characterize the softening rate of the flesh and some physiological parameters of three peach cultivars during the last phase of on-tree development. During two consecutive seasons, labeled fruits were nondestructively monitored on-tree, from the stone-hardening phase up to harvest. The absorbance index of the skin (IAD) follows a segmented, nonlinear regression. Beyond the intersection point of the two segments of the regression, the IAD decreased linearly at a higher rate 10 to 15 day before harvest. The most dramatic change of the IAD coincided with the “color break” of the skin. The IAD and the flesh softening were similar in ‘Andes Du-1’ and ‘Loadel’, while there was no difference in the growth rate of ‘Bowen’ and ‘Loadel’. ‘Andes Du-1’ and ‘Bowen’ showed the same growth rate in the upper and the lower sections of the canopy. The fruit at the upper section showed a mass of 30 to 50 g greater than the fruit at the lower section. In addition, no significant changes in the evolution of the soluble solids content (SSC) were observed, with the exception of ‘Loadel’ located in the upper section of the canopy. Differences in the length of the fruit development period are strongly influenced by the accumulated temperature after bloom. The difference in the fruit mass, SSC, IAD, and background color depend on the position of the fruit on the canopy. The use of mixed models, based on repeated sampling over time allows to accurately describing the evolution of peach ripening.

scholarly journals Qualidade de frutos de mangabeira de diferentes estágios de maturação tratados com CaCl2

2021 ◽  
Vol 10 (3) ◽  
pp. e21010313340
Author(s):  
Alexandre Passos Oliveira ◽  
Pryanka Thuyra Nascimento Fontes ◽  
Luiz Fernando Ganassali de Oliveira Junior
Keyword(s):  
Storage Period ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Ambient Atmosphere ◽  
Climacteric Fruit ◽  
Organoleptic Characteristics ◽  
The Difference ◽  
Solids Content ◽  
Hancornia Speciosa ◽  
Two Stages

Hancornia speciosa is a fruit tree, popularly known as mangabeiras. The mangaba, fruits of this tree, are quite appreciated for their organoleptic characteristics. Because it is a climacteric fruit, this fruit has very high perishability. The use of products that extend the useful life is necessary. Calcium chloride (CaCl2) has been shown to be an alternative in post-harvest because it promotes few changes in fruit quality and increases the storage period. Thus, the objective of this work was to evaluate quality attributes of mangaba fruits in two stages of maturation, 'Immature' and 'Mature', submitted to CaCl2 application, in four storage times (0, 2, 4 and 6 days) under ambient atmosphere. During the experiment, the loss of fresh weight, color, pH, titratable acidity, soluble solids and SS/TA ratio were evaluated. It was verified that the 'mature' fruits showed a higher acidity and soluble solids content, even with the application of CaCl2, the difference that the loss with the application of CaCl2 was smaller. Unlike '‘Immature’ and ‘Immature’ fruits with CaCl2 in which these characteristics were acquired as the experiment was conducted, in addition to presenting lower values for weight loss, pH and color.

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 Intrapopulation recurrent selection by mixed models in papaya of the formosa group

2018 ◽  
Vol 40 (3) ◽  
Author(s):  
Sarah Ola Moreira ◽  
Karin Tesch Kuhlcamp ◽  
Fabíola Lacerda de Souza Barros ◽  
Moises Zucoloto ◽  
Alyce Carla Rodrigues Moitinho
Keyword(s):  
Mixed Models ◽  
Recurrent Selection ◽  
Block Design ◽  
Soluble Solids ◽  
Genetic Gains ◽  
Selection Strategies ◽  
Randomized Block Design ◽  
Effective Selection ◽  
Solids Content ◽  
The Individual

Abstract Few cultivars of papaya from the Formosa group are available to producers, and the development of new genotypes is indispensable. Thus, the use of effective selection strategies to obtain more productive cultivars and better quality fruits is also necessary. The aim of this study was to select of half-sib families (HSF) of papaya using the methodology of mixed models. Nineteen HSFs from the Incaper’s papaya breeding program were evaluated in a randomized block design with five replicates and nine plants per plot. The selection was made based on fruit mass (FM), pulp thickness (PT), soluble solids content in pulp (SS) and number of fruits (NF). The genetic parameters and genotypic values were estimated by the REML/BLUP procedure. The selected HSFs increased FM by 26.1%; the PT in 10.5%; the SS in 7.5% and; the NF in 13.0%. The additive heritability within the progenies and the individual variation coefficient obtained indicate that the selection between and within the HSFs can provide greater genetic gains. The selection based on the REML/BLUP methodology was efficient to obtain simultaneous genetic gains for all variables under study despite the negative correlation between them.

scholarly journals The Yield, Fruit Quality and Some of Nutraceutical Characteristics of Saskatoon Berries (Amelanchier alnifolia Nutt.) in the Conditions of Eastern Poland

Agriculture ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 824
Author(s):  
Ewa Szpadzik ◽  
Tomasz Krupa
Keyword(s):  
Fruit Quality ◽  
Climatic Conditions ◽  
Soluble Solids ◽  
Soil Conditions ◽  
Soluble Solids Content ◽  
Amelanchier Alnifolia ◽  
Health Promoting ◽  
High Antioxidant Activity ◽  
Solids Content ◽  
Fruit Mass

The Saskatoon berry (Amelanchier alnifolia Nutt.) is a prospective and increasingly popular species in Poland. Its main attributes are extremely valuable fruits, rich in anthocyanins with high antioxidant activity, which are very valuable in processing. Studies aimed at comparing the suitability for cultivation under the climatic and soil conditions of east Poland of the three Canadian cultivars of Saskatoon berry (‘Honeywood’, ‘Martin’ and ‘Pembina’), were conducted at the Warsaw University of Life Sciences in 2017–2018. The study evaluated parameters such as yield and fruit quality, as well as the health-promoting value of the fruit. These studies revealed significant differences between the studied cultivars, both in yield and in fruit physicochemical properties, i.e., fruit mass and diameter, firmness, and soluble solids content, as well as in terms of the content of anthocyanins, flavonoids, and polyphenols. These differences were also found between years, which may indicate that the content of the abovementioned compounds is also influenced by annual climatic conditions.

scholarly journals Strategies to increase red color and reduce the incidence of sunburns on apples

2020 ◽  
pp. 339-346
Author(s):  
Gentil Carneiro Gabardo ◽  
Keli Cristina dos Santos ◽  
Cristhian Leonardo Fenili ◽  
José Luiz Petri ◽  
Bianca Schveitzer ◽  
...  
Keyword(s):  
Mineral Content ◽  
Calcium Content ◽  
Soluble Solids ◽  
Production Data ◽  
Liquid Formulation ◽  
Test Application ◽  
Red Color ◽  
Solids Content ◽  
Fruit Mass

The aim of this study was to evaluate the application of CaCO3 in liquid formulation on the incidence of sunburn and the visual quality of apples, as well as to test application times and dosages of biostimulants in increasing the red Color of the fruits. The study was carried out in partnership with the rural producer, in the orchards located in the municipality of Fraiburgo-SC, in the 2018/2019 harvest. To meet the proposed objectives, two different experiments were conducted: experiment 1 - application of calcium carbonate to reduce the incidence of sunburn in apples and experiment 2 - use of biostimulant to increase the red Color in the epidermis of apples. The variables analyzed were: production data (kg plant-1, fruits plant-1, average fruit mass and aspects related to fruit quality: pulp firmness, soluble solids content, mineral content in fruits, percentage of red Color in the epidermis of the fruits and incidence of sunburn. The tests carried out to promote the red Color of the fruits showed satisfactory results. However, the tests developed aiming at reducing the incidence of sunburn did not show reliable results, since the environmental conditions, mainly the sunstroke, were not favorable to the development of the damage to the fruits, making it impossible to obtain conclusive information on the efficiency of the CaCO3 product. in reducing the incidence of sunburn in apples. The application of CaCO3 as a sunscreen does not improve the calcium content of the harvested fruits. The application of Physiogrow® Color promotes better allocation of the harvested fruits in categories of greater coloration of the epidermis.

scholarly journals Indicators of Maturity and Storage Quality of `Lapins' Sweet Cherry

2002 ◽  
Vol 12 (4) ◽  
pp. 687-690 ◽  
Author(s):  
S.R. Drake ◽  
D.C. Elfving
Keyword(s):  
Sweet Cherry ◽  
Prunus Avium ◽  
Fruit Weight ◽  
Harvest Date ◽  
Soluble Solids ◽  
Commercial Harvest ◽  
The Difference ◽  
Solids Content ◽  
Short Time

Three commercial `Lapins' sweet cherry (Prunus avium) orchards were used for this study during three crop seasons. Orchards were selected based on the historical average date of commercial harvest. The difference in commercial harvest date among the three orchards was 5 to 7 days. Three harvests were carried out in each orchard each year: 1) beginning 4 to 5 days before commercial harvest, 2) at commercial harvest, and 3) 4 to 5 days after commercial harvest. Fruit quality was determined after 0, 7, 14, and 21 days of storage. Harvesting fruit up to 5 days later than normal commercial harvest resulted in increases in fruit weight and soluble solids content along with no loss of firmness or change in acidity. Pedicel color did not change as harvest was delayed. Changes in visual ratings of both fruit and pedicel appearance with delayed harvest were detectable in only 1 of 3 years. Neither pitting nor bruising was influenced by harvest date. The amount of pitting or bruising present was related more to the year of harvest than to harvest date. Delaying harvest a short time beyond the normal commercial harvest date could enhance consumer appeal and increase fruit value. Storage time after harvest resulted in reduced fruit and pedicel appearance, but only beyond 14 days of storage.

scholarly journals Desempenho de cultivares de goiabeiras em ambientes irrigado e sequeiro

2020 ◽  
Vol 16 (2) ◽  
pp. 82-89
Author(s):  
Adriana Novais Martins ◽  
Nobuyoshi Narita ◽  
Eduardo Suguino ◽  
William Hiroshi S. Takata
Keyword(s):  
Nutritional Value ◽  
Block Design ◽  
Soluble Solids ◽  
Productive Performance ◽  
Randomized Block Design ◽  
Production Environments ◽  
Qualitative Variables ◽  
Solids Content ◽  
The One ◽  
Fruit Mass

The fruits of guava (Psidium guajavaL.) are highly appreciated not only for aroma and flavor, but also for nutritional value, being a rich source of vitamin C and can be consumed in naturaor in their industrial forms. The objective of this work was to evaluate the performance of guavacultivars, its initial production and its fruit quality in irrigated and non-irrigated environments. Planting was carried out in February 2016, at 2.0 x 4.5 m spacing, with seedlings formed by cuttings from a commercial nursery. The plants were conducted in the espalier system, with regular prunings for fruiting. It was used a complete randomized block design in a 3 x 2 factorial arrangement, with three cultivars (Tailandesa, Século XXI and Pedro Sato) and two production environments (irrigated and non-irrigated). Productive variables (yield per plant and fruit mass) and qualitative variables (pH and total soluble solids content) were analyzed in the first two crop cycles. The yield and mass of fruits of evaluated cultivars were not affected by the additional irrigation of the plants. The irrigation has decreased the pH and the level ofsoluble solids content of the fruits. The 'Tailandesa' guava cultivar was the one that presented the best productive performance for cultivation in the region of Vera Cruz, SP.

scholarly journals QUALITY OF PITAIA FRUITS SUBMITTED TO FIELD BAGGING

2017 ◽  
Vol 39 (spe) ◽  
Author(s):  
ANA CLAUDIA COSTA ◽  
JOSÉ DARLAN RAMOS ◽  
THATIANE PADILHA DE MENEZES ◽  
RANIERI REIS LAREDO ◽  
MARIENE HELENA DUARTE
Keyword(s):  
Titratable Acidity ◽  
Soluble Solids ◽  
Pulp Yield ◽  
Transverse Diameter ◽  
Low Levels ◽  
Hylocereus Undatus ◽  
Solids Content ◽  
Physical And Chemical ◽  
Fruit Mass

ABSTRACT In recent years, with the change in consumer profile, the demand for foods with low levels or even without pesticides has increased. Bagging fruits in the field is considered one of the oldest and effective phytosanitary practices, being an alternative to chemical control. The aim of the present work was to test some types of packaging in the bagging of pitaia fruits during their development in the plant in order to maintain quality. Red pitaia plant fruits [Hylocereus undatus (Haw.) Britton & Rose] five years post-planting were used. The experimental design used was random blocks, with 5 treatments, 4 repetitions and 10 fruits per plot. Treatments consisted of control (without bagging), newspaper bag, Kraft paper bag, waxed paper bag and Non-woven bag (NW). The following characteristics were evaluated: percentage of remaining fruits up to harvest; percentage of damaged fruits; fruit mass; longitudinal and transverse diameter; pulp yield; peel thickness; soluble solids content (SS); pH; titratable acidity (TA) and SS/TA ratio. There was no difference among treatments for most of the characteristics analyzed, except for percentage of remaining fruits on the plant and percentage of damaged fruits. Bagging does not alter the physical and chemical characteristics of red pitaia fruits. NW and newspaper bags are more effective in bagging pitaia fruits due to greater permanence in the fruit during its development in the plant.

Desidratação Osmótica de Guapeva

UNICIÊNCIAS ◽  
2019 ◽  
Vol 22 (3Esp) ◽  
pp. 21
Author(s):  
Ellen Godinho Pinto ◽  
Luiz Felipe De Lima ◽  
Fabio Junior Dos Santos ◽  
Fernando Luiz De Oliveira ◽  
Dayana Silva Batista Soares
Keyword(s):  
Vitamin C ◽  
Sucrose Solution ◽  
Osmotic Dehydration ◽  
Soluble Solids ◽  
Total Soluble Solids ◽  
Osmotic Solution ◽  
Solids Content ◽  
Physical And Chemical ◽  
Temperature Time ◽  
Fruit Mass

Os frutos do cerrado em geral apresentam sabores próprios e elevados teores de nutrientes, no entanto, grande parte desses frutos são pouco conhecida e comercializada, estando a guapeva entre estes. Neste trabalho realizou-se a caracterização do fruto in natura da guapeva e avaliando a influência da temperatura, tempo e concentração da solução de sacarose na desidratação osmótica da guapeva, e se investigaram variações de propriedades físicas, químicas e dos parâmetros da desidratação osmótica. Foram utilizadas as temperatura de 25, 45 e 60 ºC e tempos de 0, 30, 60, 120, 240 e 360 minutos e a concentração 35 e 50 °Brix da solução osmótica e se fixando a razão mássica fruta: xarope 1:6 e formato dos pedaços (metades). Na análise física e química foram realizadas: peso, comprimento, umidade, teor de sólidos solúveis totais e vitamina C.  Conclui-se que na desidratação osmótica em temperatura de 25 ºC e concentração da solução de 50ºBrix apresentaram menor degradação da vitamina C, portanto na temperatura de 45 ºC e 50ºBrix no tempo de 360 minutos teve uma maior incorporação sólidos solúveis totais e na temperatura de 60ºC teve uma redução linear da umidade com o tempo. Palavras-chave: Cerrado. Incorporação de Sólidos. Vitamina C. Pouteria cf. guardneriana Radlk. AbstractThe fruits of the cerrado usually have their own flavors and high levels of nutrients; however, most of these fruits are still little known and marketed, and guapeva among them. The objective of this study was to evaluate the influence of temperature, time and concentration of the sucrose solution on guapeva osmotic dehydration, and to investigate variations in physical, chemical and dehydration parameters osmotic. The temperatures of 25, 45 and 60 ºC and 0, 30, 60, 120, 240 and 360 minutes and the 35 and 50 ° Brix concentration of the osmotic solution were used and the fruit mass ratio was fixed: 1: 6 syrup and format of the pieces (halves). In the physical and chemical analysis were carried out: weight, length, humidity, total soluble solids content and vitamin C. It was concluded that in osmotic dehydration at 25 ºC and concentration of 50ºBrix solution showed lower degradation of vitamin C, of 45 ºC and 50ºBrix in the time of 360 minutes had a greater incorporation total soluble solids and in the temperature of 60 ºC had a linear reduction of the humidity with the time. Keywords: Cerrado. Incorporation of Solids. Vitamin C. Pouteria cf. guardneriana Radlk. 

scholarly journals Productivity and quality of organic strawberries pre-harvest treated with silicon

2018 ◽  
Vol 36 (1) ◽  
pp. 40-46 ◽  
Author(s):  
Luana Marcele Munaretto ◽  
Renato V Botelho ◽  
Juliano Tadeu V Resende ◽  
Kélin Schwarz ◽  
Alessandro Jefferson Sato
Keyword(s):  
Ascorbic Acid ◽  
Room Temperature ◽  
Ascorbic Acid Content ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Fruit Firmness ◽  
Soluble Solids Content ◽  
Solids Content ◽  
Fruit Mass

ABSTRACT Mineral nutrients have important role in plant metabolism, acting on specific vital metabolic pathways for the cell. Among the nutrients, we highlight silicon (Si), for promoting growth, improving post-harvest quality and plant productivity, as well as being able to induce resistance to pest and disease. In this sense, this study aimed to evaluate the productivity and post-harvest quality of strawberry fruits cultivars Aromas and Albion cultivated in organic system with four doses of foliar applications of SiO2 in pre-harvest (0, 5, 10, 15 g L-1), and refrigerated storage (8 days under refrigeration and 1 day at room temperature). The valuated traits were: mass loss, fruit mass, productivity, fruit firmness, soluble solids, titratable acidity, total phenolics, total anthocyanins, ascorbic acid and soluble solids titratable acidity ratio. The cultivar Aromas presented higher productivity per area (33.05 t ha-1), and more fruits per plot (479.42); however, higher average fruit mass was obtained in cultivar Albion (24.44 g), presenting better-quality fruits for fresh market. Soluble solids content, SS/TA ratio and ascorbic acid content were not influenced by silicon doses, however, refrigeration during 8 days and 1 day at room temperature provided reduction of fruit firmness, titratable acidity and, ascorbic acid content and increased soluble solids content and SS/TA ratio. Refrigeration attenuated significant reductions in anthocyanin content and, in addition, foliar silicon application promoted higher levels of anthocyanins in the fruits of both strawberry cultivars, increasing with the applied dose. The application of silicon was also efficient in maintaining fruit firmness of both cultivars.

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