scholarly journals Productivity and chemical quality of grapevines cultivated in agroecological system under subtropical climate

2018 ◽  
Vol 40 (5) ◽  
Author(s):  
Josiane Aparecida Mariani ◽  
Gilmar Antônio Nava
Keyword(s):  
Titratable Acidity ◽  
Climatic Conditions ◽  
Soluble Solids ◽  
Subtropical Climate ◽  
Fresh Biomass ◽  
Productive Potential ◽  
Chemical Attributes ◽  
Grape Juices ◽  
Niagara Rosada

Abstract The productive potential of grapevine cultivars recently released in the market, especially for preparation of 100% grape juices, must be proved on the different Brazilian soil and climatic conditions of production, focusing on the Southwest of Paraná. The objective of this study was to evaluate the main yield components and chemical attributes of the juice of the following grapevine cultivars: Bordô, BRS Carmem, BRS Lorena, BRS Magna, BRS Rubea, BRS Violeta, Concord, Concord Clone 30, Isabel, Isabel Precoce, Moscato Bailey, Moscato Embrapa, Niagara Branca, Niagara Rosada and Seibel 5455. Paulsen 1103 was the rootstock used. The study was conducted during two harvests, 2015/2016 and 2016/2017, in Dois Vizinhos, Paraná State, Brazil. Due to the crop, we determined the number of bunches per plant, fresh biomass of bunches (g) and the estimates of productivity (kg/plant and ton/ha). We extracted the juice of cultivars to evaluate soluble solids (SS) contents, pH and titratable acidity (TA), as well as the ratio. The cultivars BRS Violeta, Isabel Precoce and Seibel 5455 were the most productive. The cultivars BRS Rúbea, BRS Violeta, Isabel, Moscato Embrapa, Moscato Bailey, Niagara Branca and Niagara Rosada have desirable soluble solids contents, pH and titratable acidity for preparation of 100% grape juices of quality in Dois Vizinhos and microregion. The best year-harvest of cultivation was 2016/2017.

scholarly journals Bagging of bunches and protected production in ‘Niagara Rosada’ vineyard

2021 ◽  
Vol 27 (1) ◽  
pp. 90-98
Author(s):  
Inês Thomaz Guérios ◽  
Francine Lorena Cuquel ◽  
Luiz Antônio Biasi
Keyword(s):  
Titratable Acidity ◽  
Soluble Solids ◽  
Woven Fabric ◽  
Chemical Characteristics ◽  
Productive Potential ◽  
Protected Plants ◽  
Delayed Maturation ◽  
Physical And Chemical ◽  
Niagara Rosada

Vineyards of ‘Niagara Rosada’ have shown great productive potential. However, the grape production has been affected by factors related to climate adversities. Thus, this study aimed to evaluate the effect of plastic cover and bagging of bunches of ‘Niagara Rosada’, in Almirante Tamandaré, PR, Brazil. Plastic cover used was of polyethylene with 250 µm of thickness and bagging of the bunches with white non-woven fabric bags. The treatments were: without plastic cover over the vineyard and without bagging of bunches (control); with plastic cover over the vineyard and without bagging of bunches; with plastic cover over the vineyard and with bagging of bunches; and without plastic cover over the vineyard and with bagging of bunches. To determine the quality of the grapes, we evaluated weight of the bunches and berry, width and length of the bunch, number of berries per bunch, total soluble solids (SS), titratable acidity (TA), pH, and SS/TA ratio. In both crop seasons, treatments with the protected plants or bunches were superior in all evaluated traits. The plastic cover and bagging of bunches delayed maturation and improved the physical and chemical characteristics of bunches and berries of ‘Niagara Rosada’.

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 Yield and quality of strawberry cultivars

2010 ◽  
Vol 28 (2) ◽  
pp. 222-226 ◽  
Author(s):  
Luis Eduardo C Antunes ◽  
Nara Cristina Ristow ◽  
Ana Cristina R Krolow ◽  
Sílvia Carpenedo ◽  
Carlos Reisser Júnior
Keyword(s):  
Statistical Design ◽  
Rio Grande ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Climatic Conditions ◽  
Soluble Solids ◽  
Experimental Unit ◽  
Rio Grande Do Sul ◽  
Yield And Quality

The strawberry cultivation is an important economic activity in the Rio Grande do Sul State, Brazil, however the number of offered cultivars to the growers is reduced. The yield and quality of strawberry (Fragaria x ananassa Duch.) cultivars Camarosa, Galexia, Earlibrite, Festival, Plarionfre and Sabrosa was evaluated under the climatic conditions of Pelotas, Rio Grande do Sul State. We determined the number, mass, total soluble solids (TSS ºBrix), total titratable acidity (TTA), antocianin level and fresh fruits produced in an experimental unit. We also determined the production of fruits per hectare and per plant. The statistical design used in the experiment was of completely randomized blocks with 6 treatments (cultivars) and 4 replicates where the experimental unit was composed of 8 plants. The harvest began in the first half of August, extending to the second half of December, totalling 20 weeks. Plarionfre, Earlibrite and Festival cultivars showed higher production from the first half of October until the end of the first half of November. Camarosa reached higher productivity, mass of plants and fruit weight. There were no differences between the evaluated cultivars in the levels of TSS, antocianin, ATT and pH during the period of evaluation.

scholarly journals Quality of papaya hybrid grown under different irrigation depths

2013 ◽  
Vol 33 (4) ◽  
pp. 865-875 ◽  
Author(s):  
Mônica S. da Silva ◽  
Alberto S. de Melo ◽  
Juarez P. Pedroza ◽  
Josivanda P. Gomes ◽  
Sebastião de Oliveira M. Júnior
Keyword(s):  
Titratable Acidity ◽  
Fruit Production ◽  
Soluble Solids ◽  
Semiarid Region ◽  
Replacement Rate ◽  
Productive Potential ◽  
Irrigation Depth ◽  
Brazilian Northeast ◽  
Longitudinal Diameter

Irrigation is a practice widely used in fruit production in the Brazilian Northeast region, including in the papaya crop in order to increase their productivity. For the purpose of knowing the productive potential of papaya hybrid irrigated, an experiment was carried out in order to evaluate the performance of a papaya hybrid under different irrigations depths. Four irrigation depths (50, 75, 100 and 125% of ETo) were tested and the reference evapotranspiration was calculated by the Penman-Monteith model. The hybrid papaya used was UENF/Caliman 01, which was planted in single rows, spaced 4 x 2m from each other, and irrigated by dripping. The experimental design in randomized blocks was used with six replications and three plants per plot. The following variables were evaluated: transversal diameter, longitudinal diameter, pulp thickness, external and internal appearances, soluble solids, titratable acidity, pulp pH and soluble solids/titratable acidity relation. The higher transversal and longitudinal diameters of the fruit were obtained applying an irrigation depth of about 108% of evapotranspiration. The UENF/Caliman 01 hybrid can be cultivated in the semiarid region of the State of Paraiba, Brazil, with replacement rate of 100% ETo, without compromising the quality of the fruits.

scholarly journals Relative humidity during cold storage on Postharvest quality of 'Niagara Rosada' table grapes

2015 ◽  
Vol 45 (3) ◽  
pp. 386-391 ◽  
Author(s):  
Josuel Alfredo Vilela Pinto ◽  
Márcio Renan Weber Schorr ◽  
Fabio Rodrigo Thewes ◽  
Deiverson Luiz Ceconi ◽  
Vanderlei Both ◽  
...  
Keyword(s):  
Weight Loss ◽  
Relative Humidity ◽  
Shelf Life ◽  
Cold Storage ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Table Grapes ◽  
Niagara Rosada

This study aimed to evaluate the effect of different levels of relative humidity (RH) on the maintenance of Postharvest quality of 'Niagara Rosada' table grapes after cold storage at 0.5°C for 21 days. A completely randomized design was used, with five replicates of 18 clusters per treatment. The selected levels of relative humidity were 85, 90, 95 and 100%, obtained by means of electronic humidity controllers. The fruits were evaluated in relation to rot incidence, berry cracking, browning rate, respiratory rate, titratable acidity, soluble solids, resistance to abscission, berry drop and weight loss. The evaluations were assessed at 20 days of storage and after two and four days of shelf-life (20°C; 85% RH). The results showed that as higher as relative humidity, higher is rot incidence and that the variables rachis browning and weight loss were inversely related to relative humidity. Resistance to abscission at the end of storage was higher when humidity ranged between 90 and 95%, but it was not affected after transfer to shelf-life from cold storage. Relative humidity ranging between 90 and 95% offer the best conditions to maintain the Postharvest quality of 'Niagara Rosada' table grapes

scholarly journals COMPOSIÇÃO DA ACEROLA DE DIFERENTES GENÓTIPOS EM DUAS ÉPOCAS DE COLHEITA

Nativa ◽  
2018 ◽  
Vol 6 (1) ◽  
pp. 15 ◽  
Author(s):  
Maurício Dominguez Nasser ◽  
Flávia Aparecida de Carvalho Mariano-Nasser ◽  
Karina Aparecida Furlaneto ◽  
Juliana Arruda Ramos ◽  
Priscilla Kárim Caetano
Keyword(s):  
Titratable Acidity ◽  
Climatic Conditions ◽  
Soluble Solids ◽  
Maturation Stage ◽  
Randomized Design ◽  
Physico Chemical ◽  
Malpighia Emarginata ◽  
Chemical Attributes ◽  
Physical And Chemical ◽  
First Time

Os atributos físicos e químicos da acerola podem sem influenciados por vários fatores: genótipo, localização do pomar, tratos culturais empregados nas plantas, índice pluviométrico, irrigação, exposição à luz solar, estádio de maturação dos frutos e época de colheita. O presente trabalho avaliou características químicas e físico-químicas de frutos de diferentes genótipos de aceroleira em duas épocas de colheita. A primeira época no período de fevereiro a março de 2014, e a segunda época de dezembro de 2014 a janeiro de 2015. Os materiais genéticos avaliados foram Olivier, BRS 237 - Roxinha, BRS 236 - Cereja, BRS 238 - Frutacor, BRS 235 - Apodi, Waldy – CATI 30 e Okinawa. O delineamento utilizado foi o inteiramente casualizado (DIC) em esquema fatorial, com 7 cultivares em 2 épocas de colheita, totalizando 14 tratamentos, e a repetição sendo 500 g por amostra de frutos maduros para cada genótipo de aceroleira representado por oito plantas em fase de produção e com oito anos de idade. Avaliaram-se os seguintes atributos físico-químicos: pH e sólidos solúveis (°Brix), e químicos: ácido ascórbico, e acidez titulável (expressa em g de ácido cítrico 100 g-1 de polpa). Também foi determinada a relação °Brix / Acidez titulável. Nas duas épocas de colheita avaliadas, a composição da acerola é mais influenciada pelo genótipo que pelas condições climáticas de precipitação e temperatura do ambiente. Todos os clones de aceroleira atendem a legislação brasileira vigente quanto à qualidade de polpa de fruta de acerola.Palavra-chave: Malpighia emarginata Sessé e Mociño ex DC, qualidade, fruticultura tropical. COMPOSITION OF THE ACEROLA OF DIFFERENT GENOTYPES IN TWO SEASONS OF HARVEST ABSTRACT:The physical and chemical attributes of acerola can be influenced by several factors: genotype, orchard location, crop management, pluviometric index, irrigation, exposure to sunlight, fruit maturation stage and harvest season. The present work evaluated the chemical and physical-chemical characteristics of the acerola of different genotypes at two harvest seasons. The first time in the period from February to March 2014, and the second time from December 2014 to January 2015. The genetic materials evaluated were Olivier, BRS 237 - Roxinha, BRS 236 - Cherry, BRS 238 - Frutacor, BRS 235 - Apodi, Waldy - CATI 30 and Okinawa. The design was a completely randomized design in a factorial scheme, with 7 cultivars in 2 seasons of harvest, totaling 14 treatments, and the repetition being 500 g per sample of mature fruits for each genotype of acerola represented by eight plants in production and eight years of age. The following physico-chemical attributes were evaluated: pH and soluble solids (° Brix), and chemicals: ascorbic acid, and titratable acidity (expressed in g of citric acid 100 g-1 of pulp). The ratio ° Brix / Titratable acidity was also determined. In the two evaluated harvest periods, the composition of the acerola is more influenced by the genotype than by the climatic conditions of precipitation and temperature of the environment. All clones of acerola are in compliance with the Brazilian legislation in force regarding the quality of fruit pulp of acerola.Keywords: Malpighia emarginata Sessé e Mociño ex DC, quality, tropical fruticulture. DOI:

scholarly journals EFFECTS OF LEAF REMOVAL ON YIELD AND FRUIT QUALITY OF `RIESLING' AND `CHARDONNAY' GRAPES.

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1116d-1116
Author(s):  
Christopher D. Gran ◽  
Rea Jean Lonneman ◽  
Emily E. Hoover
Keyword(s):  
Fruit Quality ◽  
Strong Influence ◽  
Titratable Acidity ◽  
Climatic Conditions ◽  
Soluble Solids ◽  
Quality Data ◽  
Leaf Removal ◽  
Grape Cultivar ◽  
Grape Cultivars

Leaf removal has been reported to be beneficial to fruit quality of several grape cultivars. However, climatic conditions, time of leaf removal and genotype have a strong influence on the effect of leaf removal on fruit quality traits, such as soluble solids and titratable acidity. The effect of leaf removal on fruit quality of two vinifera grape cultivar grown in Minnesota was examined in this study. The first six basal leaves were removed from four canes on each vine of `Riesling' and `Chardonnay'. Leaf removal was carried out at two different times after the onset of verasion--early August (8/2) and late August (8/23). Fruit was harvested in late September and yield and fruit quality data were recorded. The results of the 1989 study will be discussed here. Leaf removal did not significantly affect yields obtained from either cultivar, regardless of leaf removal date. Early leaf removal on `Chardonnay' vines resulted in significantly higher soluble solids and significantly lower titratable acidity than that observed for fruit of control or late removal treated vines. Similar results were observed for `Riesling', however the differences were not significant. Data from 1989 and 1990 will he presented and discussed in the talk.

scholarly journals Harvest season, productivity and physicochemical quality of peach fruits grown in Dois Vizinhos, Paraná State, Brazil

2020 ◽  
Vol 41 (6supl2) ◽  
pp. 3011-3022
Author(s):  
Gilmar Antonio Nava ◽  
◽  
Eder Oneide Kurschner ◽  
Dalva Paulus ◽  
◽  
...  
Keyword(s):  
Titratable Acidity ◽  
Soluble Solids ◽  
Experimental Unit ◽  
Subtropical Climate ◽  
Crop Season ◽  
Physicochemical Quality ◽  
Fruit Growing ◽  
Main Components ◽  
Technological University

The objective of this study was to determine the harvest time, main components of yield and the physicochemical quality attributes of peach cultivars produced in a subtropical climate. The study was carried out in the Fruit Growing sector of the Federal Technological University of Paraná, Campus Dois Vizinhos, Paraná State, Brazil. The main components of yield and estimated productivity, background color of the epidermis, pulp firmness, soluble solids (SS), titratable acidity (TA) and the SS/TA ratio of 17 peach cultivars were determined for two crop cycles: 2016 and 2017. The experimental design was a randomized block with four replicates of one tree per experimental unit, in a 17 x 2 bifactorial scheme (cultivars x years). Fruits of the cultivars: Aurora-1, Bonão, Douradão, Leonense, Ouromel, Rubimel and Zilli matured early, whereas those of Eldorado and BR-1 were last to mature. The cultivars Bonão, Charme and Eldorado were the most productive. Eldorado produced the highest caliber of fruits and Bonão produced the highest number of fruits per tree. The cultivars BR-1 and Eldorado produced the sweetest fruits and Leonense, the most acidic. The 2016 crop season provided greater productivity, with fruits of greater caliber and firmness of pulp.

scholarly journals Diversification and Soil Management Effects on the Quality of Organic Apricots

Agronomy ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1791
Author(s):  
Roberto Ciccoritti ◽  
Roberto Ciorba ◽  
Francesco Mitrano ◽  
Marcello Cutuli ◽  
Tiziana Amoriello ◽  
...  
Keyword(s):  
Cover Crops ◽  
Dry Matter ◽  
Soil Management ◽  
Titratable Acidity ◽  
Climatic Conditions ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Organic System ◽  
High Solar Radiation

Nutritional and commercial value of the apricot fruits depends on the interaction among several factors, including the management strategies, the environmental conditions, and the genotype. This study aimed to evaluate the effect of orchard management and pedoclimatic conditions on apricot fruit quality traits (soluble solids, titratable acidity, dry matter and soluble solids and titratable acidity ratio) and phytochemical content (total phenolic content and antioxidant activity). Two apricot cultivars (Kioto* and Pieve*) were subjected to three different organic systems: (i) a standard management (BAU), (ii) an innovative diversified system with reduced tillage based on the natural cover conservation (INC) and (iii) an innovative diversified system with introduction of different cover crops (ICC), for two consecutive years (2019–2020). Overall, besides the effect of the climatic conditions, the multivariate analysis revealed the role of management systems, rather than genotype, on the quality of apricot fruits. In particular, INC soil management positively affected soluble solids, titratable acidity and dry matter parameters, especially in environments with low precipitation and high solar radiation (20.7 ± 1.7 g 100 g−1 FW, 19.9 ± 2.5 g MA 100 g−1 FW and 0.23 ± 0.2 g 100 g−1 FW respectively). In addition, the results indicate that ICC management showed the highest antioxidant values (1.45 ± 0.19 μg of Trolox equivalent (TE) 100 mg−1 FW), especially in the environment with high precipitation. This study was a useful tool for farmer to choose an effective organic system management in order to obtain fruits with high quality parameters.

scholarly journals  Evaluation of apricot fruit quality and correlations between physical and chemical attributes

2011 ◽  
Vol 29 (No. 2) ◽  
pp. 161-170 ◽  
Author(s):  
E. Mratinić ◽  
B. Popovski ◽  
T. Milošević ◽  
M. Popovska
Keyword(s):  
Fruit Quality ◽  
Chemical Compounds ◽  
Titratable Acidity ◽  
Prunus Armeniaca ◽  
Climatic Conditions ◽  
Soluble Solids ◽  
Long Time ◽  
Prunus Armeniaca L ◽  
Chemical Attributes ◽  
Physical And Chemical

The fruit of apricot (Prunus armeniaca L., Rosaceae) has been used as food in FYR Macedonia since a long time ago. The chemical organic matters from the fruit is a kind material for food processing and has potential nutritional, medical and commercial values. The results based on fruit physical and chemical analyses clearly showed that different apricot genotypes have very important contents of soluble solids, individual sugars, and titratable acidity in limited soil and climatic conditions. In addition, the contents of these chemical compounds in some genotypes were higher than those in the control cultivar Hungarian Best. Using the PC analysis (PC1 = 32.13%, PC2 = 22.86%, and PC3 = 18.32%), apricot genotypes were separated into groups with similar physical and chemical attributes. These relationships may help to select a set of genotypes with better fruit quality performances which, in our study, might be indicated in DL-1/1/04, DL-1/2/03, D-1/04 and K-5/04.

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