Mid-season sweet oranges for fresh and processing markets in Brazil

2021 ◽  
pp. 1-18
Author(s):  
Yuri Caires Ramos ◽  
André Luiz Fadel ◽  
Horst Bremer Neto ◽  
Marina Maitto Caputo ◽  
Eduardo Sanches Stuchi ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Test Performance ◽  
Management Practices ◽  
Sweet Orange ◽  
Fresh Fruit ◽  
Superior Performance ◽  
Juice Processing ◽  
Performance Indexes ◽  
Supplementary Irrigation ◽  
Standard Cultivar

Abstract Pera sweet orange (Citrus sinensis L. Osbeck) is the most important mid-season sweet orange cultivar in Brazil, not only because of its desirable fruit quality for both juice processing and the fresh fruit market, but also because there is a lack of adequate mid-season alternative sweet orange cultivars. This study aimed to evaluate the horticultural performance of other sweet oranges in an attempt to identify similar or superior selections to the standard cultivar, Pera IAC sweet orange. Seventeen sweet oranges selections, including the standard Pera IAC, were budded on Sunki mandarin [C. sunki (Hayata) hort. ex Tanaka]. The experiment was planted in 2007, using 12-month-old nursery trees, with 6.5 × 2.5 m spacing in the Southern region of São Paulo state, Brazil. The experimental orchard was maintained with standard commercial management practices, and without supplementary irrigation. Data collection started three years after planting and was carried out until seven years after the experiment had been installed. Vegetative growth, plant yield, fruit drop, fruit quality, and fruit maturation regressions were assessed. Averages of the alternative selections were compared with those of the standard cultivar by Dunnett test. Performance indexes were calculated in order to identify potential superior selections for the fresh fruit market and for juice processing. Results indicated significant differences among the selections evaluated when compared with the standard cultivar, suggesting better alternatives to be exploited. Five selections (Biondo, Finike, Pera Alexandre Maróstica, Seleta Rio, and Vaccaro Blood) offered superior performance in terms of attributes required for the fresh fruit market, while one selection (Pera Alexandre Maróstica) was superior for juice processing traits. These alternatives to Pera IAC represent an opportunity for more efficient and productive scions with higher fruit quality, and with a slight shift within the mid-season harvest time of sweet oranges in Brazil.

An evaluation of the fruit quality and storage behaviour of Lane Late Navel oranges

1977 ◽  
Vol 17 (86) ◽  
pp. 515
Author(s):  
BM El-Zeftawi
Keyword(s):  
Fruit Quality ◽  
Acid Content ◽  
Citrus Sinensis ◽  
Sweet Orange ◽  
Storage Period ◽  
Fresh Fruit ◽  
Great Benefit ◽  
Citrus Industry ◽  
And Storage ◽  
Storage Disorders

Lane Late Navel (LLN) (Citrus sinensis), a late maturing orange cultivar, was evaluated for its quality and storage behaviour and compared with other sweet orange cultivars during 1972-75. Although LLN can extend the Navel season into the Valencia season, its quality deteriorates very rapidly; the juice becomes insipid due to its lower acid content and the rind re-greens, thus detracting from its appearance. It also granulates which reduces its acceptibility as fresh fruit. Granulation increases in storage and, combined with other storage disorders such as Alternaria citri, its storage period is limited to a mere six weeks at 5�C. The results indicate that the cultivar offers no great benefit to the citrus industry under conditions similar to this trial.

The Use of Port Performance Indexes in the Transport Economy and the Strengthening of Port Competitiveness

2019 ◽  
Vol 10 (5) ◽  
pp. 387-394
Author(s):  
Astrida Rijkure ◽  
Keyword(s):  
Quality Assurance ◽  
Performance Indicators ◽  
Management Practices ◽  
International Competitiveness ◽  
International Experience ◽  
Multimodal Integration ◽  
Pricing Policies ◽  
Performance Indexes ◽  
Quality Assurance Process ◽  
Assurance Process

Ports in the transport economy have an important role to play in the competitiveness of ports. There is an increasing climate of competition, which causes ports to invest in development and to improve their transport corridors, governance principles and pricing policies in order to strengthen international competitiveness of ports and to ensure that their management practices are in line with the positive international experience. In order to increase the efficiency of transport, to promote the use of environmentally friendly technologies and to improve the international competitiveness of port transport corridors, it is important for ports to determine their own KPI indicators that would be used to assess port performance indicators. As ports are responsible for the quality assurance of port services, even if they do not provide such services, monitoring and assessing of the KPI must be part of the quality assurance process. The objective of this study is to define the port performance-enhancing KPI indexes and to make suggestions for how KPI application in the transport economy can strengthen the international competitiveness of ports and ensure that their management practises international experience. The study’s tasks are to define the appropriate KPI indexes, group them according to interlinked principles, and provide proposals on how to use them to improve the international competitiveness of ports and the main transport system multimodal integration.

Some new Pythagorean fuzzy correlation techniques via statistical viewpoint with applications to decision-making problems

2021 ◽  
pp. 1-13
Author(s):  
Paul Augustine Ejegwa ◽  
Shiping Wen ◽  
Yuming Feng ◽  
Wei Zhang ◽  
Jia Chen
Keyword(s):  
Decision Making ◽  
Correlation Coefficient ◽  
Fuzzy Set ◽  
Intuitionistic Fuzzy Set ◽  
Superior Performance ◽  
Statistical Techniques ◽  
New Techniques ◽  
Reliable Technique ◽  
Performance Indexes ◽  
Fuzzy Correlation

Pythagorean fuzzy set is a reliable technique for soft computing because of its ability to curb indeterminate data when compare to intuitionistic fuzzy set. Among the several measuring tools in Pythagorean fuzzy environment, correlation coefficient is very vital since it has the capacity to measure interdependency and interrelationship between any two arbitrary Pythagorean fuzzy sets (PFSs). In Pythagorean fuzzy correlation coefficient, some techniques of calculating correlation coefficient of PFSs (CCPFSs) via statistical perspective have been proposed, however, with some limitations namely; (i) failure to incorporate all parameters of PFSs which lead to information loss, (ii) imprecise results, and (iii) less performance indexes. Sequel, this paper introduces some new statistical techniques of computing CCPFSs by using Pythagorean fuzzy variance and covariance which resolve the limitations with better performance indexes. The new techniques incorporate the three parameters of PFSs and defined within the range [-1, 1] to show the power of correlation between the PFSs and to indicate whether the PFSs under consideration are negatively or positively related. The validity of the new statistical techniques of computing CCPFSs is tested by considering some numerical examples, wherein the new techniques show superior performance indexes in contrast to the similar existing ones. To demonstrate the applicability of the new statistical techniques of computing CCPFSs, some multi-criteria decision-making problems (MCDM) involving medical diagnosis and pattern recognition problems are determined via the new techniques.

scholarly journals Influence of Different Training Levels on Fruit Quality and Yield of Tomato (Solanum lycopersicum L.) under the Mid-hill Conditions of Himachal Pradesh

2021 ◽  
Author(s):  
Shilpa . ◽  
Priyanka Bijalwan ◽  
Y.R. Shukla
Keyword(s):  
Fruit Quality ◽  
Management Practices ◽  
Cultural Practices ◽  
Block Design ◽  
Ascorbic Acid Content ◽  
Training System ◽  
Cost Ratio ◽  
Tomato Crop ◽  
Benefit Cost Ratio ◽  
Solanum Lycopersicum L

Background: Yield of summer tomato do not always reach the full production potential. Improved management such as, training and pruning could improve the yield and fruit quality of tomatoes. The production of the healthy and improved quality tomato crop depends on various cultural practices like training systems as it prevents overcrowding for sunlight thus improves air circulation under humid and moist conditions where tomato plants are more prone to fungal diseases, avoids poor fruit set and assimilates competition. Methods: The study was carried out during kharif seasons of 2017 and 2018 with Solan Lalima variety, in the Research Farm of Dr. YSP UHF Nauni, Solan, HP to find out the response of plants to management practices on yield, quality and cost of production. The experiment consisting of two planting methods, three mulching treatments, two level of training system, laid out in randomized complete block design with three repetitions. Result: Plants trained to two stem gave the maximum fruit TSS (4.75 oB), ascorbic acid content (30.79 mg/100 g), lycopene content (5.84 mg/100 g) and shelf life (11.35 days). From the economics, it was apparent that tomato produced by the two stem training system exhibited better performance in terms of benefit cost ratio.

scholarly journals Influence of off-season land management on maximizing yield and quality of Curcuma longa L. cultivars

1970 ◽  
pp. 33-36
Author(s):  
A. ANBURANI
Keyword(s):  
Land Management ◽  
Management Practices ◽  
Curcuma Longa ◽  
Block Design ◽  
Quality Parameters ◽  
Polyethylene Film ◽  
Superior Performance ◽  
Yield And Quality ◽  
Randomized Block Design

The present investigation was carried out to study the effect of off season soil management practices on yield and quality of turmeric (Curcuma longa L.) cultivars. The experiment was laid out in a Factorial Randomized Block Design with ten treatments in three replications consisted of five off-season land management treatments viz., fallow (S1), summer ploughing 2 times (S2), summer ploughing 1 time (S3), solarization with transparent polyethylene film of 0.05 mm thick for 40 days (S4) and black polyethylene film for 40 days (S5). It was tested with two popular cultivars viz., Curcuma longa -1 CL-1 (V1) and Curcuma longa-2 CL-2 (V2), collected from Erode and Chidambaram. Various yield components were recorded at the time of harvest and were analysed. The yield attributing characters viz., number, length, girth and weight of mother, primary and secondary rhizomes were recorded. The treatment where solarization with transparent polyethylene film of 0.05 mm thick was tested recorded the highest yield and yield attributing characters when compared to other treatments. The same treatment also exhibited the highest fresh rhizome yield per plant, curing percentage and cured rhizome yield. The quality parameters like curcumin, oleoresin and essential oil content were also showed superior performance in the treatment where solarization with transparent polyethylene film of 0.05 mm thick was applied.

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