scholarly journals Effects of Pruning and Nitrogen Fertilization for The Rejuvenation and Physicochemical Characteristics Of Fruits of Declining Apricot Trees (Prunus Armeniaca L. CV. New Castle)

2021 ◽  
Vol 50 (4) ◽  
pp. 1119-1126
Author(s):  
Rocky Thokchom ◽  
KK Thakur ◽  
DP Sharma
Keyword(s):  
Nitrogen Fertilization ◽  
Ascorbic Acid Content ◽  
Physicochemical Characteristics ◽  
Prunus Armeniaca ◽  
Soluble Solids ◽  
Nitrogen Level ◽  
Rapid Restoration ◽  
Prunus Armeniaca L ◽  
First Time

Effects of pruning and nitrogen fertilization for the rejuvenation and physicochemical quality of fruits, bearing on declining apricot trees (Prunus armeniaca L. cv. New Castle) were assessed. Studies were conducted from 2011 to 2015 on the 25 years old senile and declining apricot trees. Ten treatments comprised of a factorial combination of three pruning levels/severity (heading back of main scaffolds at 20, 40 and 60%) with three levels of nitrogen doses (500, 625 and 750g N/tree). For the first time in the year 2011, the experimental trees received the treatments during its dormant period (winter). In the successive years, all the treatments were followed by corrective pruning facilitate rapid restoration of growth and production of the orchard. The factorial treatment combination of heavy pruning (60%) with the lowest doses of nitrogen level (500g/tree) increased the qualities of fruits in terms of weight, volume, firmness, total soluble solids, sugars and acidity content. Whereas, the ascorbic acid content was facilitated by heavy pruning (60%) with the highest doses of nitrogen level (750g/tree) in all the following years. Bangladesh J. Bot. 50(4): 1119-1126, 2021 (December)

Quality of Carrots Grown for Processing as Affected by Nitrogen Fertilization and Harvest Term

2009 ◽  
Vol 70 (1) ◽  
pp. 135-144 ◽  
Author(s):  
Marek Gajewski ◽  
Zenon Węglarz ◽  
Anna Sereda ◽  
Marta Bajer ◽  
Agnieszka Kuczkowska ◽  
...  
Keyword(s):  
Nitrogen Fertilization ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
Carrot Juice ◽  
Harvest Time ◽  
Experimental Station ◽  
Colour Parameters ◽  
Solids Content ◽  
Nitrates Content

Quality of Carrots Grown for Processing as Affected by Nitrogen Fertilization and Harvest TermIn 2007-2008 the effect of nitrogen fertilization and harvest term on quality of two carrot cultivars was investigated. The field experiment was carried out in Żelazna Experimental Station of Warsaw University of Life Sciences. Karotan F1and Trafford F1cultivars, commonly grown for juice industry, were the objects of the experiment. Carrot seeds were sown at the beginning of May. Nitrogen fertilization was applied in five rates, ranged from 0 to 120 kg·ha-1and in two terms — before sowing and in the middle of growing season. Roots were harvested in three terms: mid-September, mid-October and the first decade of November. After harvest there were determined: nitrates (NO3) content in carrot roots and juice, soluble solids, colour parameters of juice in CIE L*a*b*system. The dose and the term of nitrogen fertilization influenced nitrates content in carrots, and the highest NO3concentration was found in carrots fertilized with 120 kg·ha-1of N before sowing. Karotan showed higher nitrates accumulation than Trafford. The content of nitrates in the roots was markedly higher than in carrot juice. Nitrates content in carrots decreased with delaying of harvest time, in opposite to soluble solids content. Soluble solids content and colour parameters of carrot juice were not affected by nitrogen fertilization, but the lowest L*, a*and b*values were observed at the last term of harvest.

scholarly journals Effect of Methyl Jasmonate, Cytokinin, and Lavender Oil on Antioxidant Enzyme System of Apricot Fruit (Prunus armeniaca L.)

2021 ◽  
Vol 13 (15) ◽  
pp. 8565
Author(s):  
Seyda Cavusoglu ◽  
Nurettin Yilmaz ◽  
Firat Islek ◽  
Onur Tekin ◽  
Halil Ibrahim Sagbas ◽  
...  
Keyword(s):  
Enzyme Activity ◽  
Methyl Jasmonate ◽  
Prunus Armeniaca ◽  
Lavender Oil ◽  
Defense Systems ◽  
Antioxidant Enzyme System ◽  
Prunus Armeniaca L ◽  
Antioxidant Defense Systems ◽  
And Storage

Various treatments are carried out in order to extend both the shelf life and storage life of fresh fruit and vegetables after harvest and among them non-toxic for humans, environmentally and economically friendly alternative treatments are gained more importance. In the current study, methyl jasmonate (MeJA), cytokinin, and lavender oil which are eco-friendly and safe for human health were applied on apricot fruit. The treated fruit were stored at 0 °C and 90–95% relative humidity for 25 days and catalase (CAT), superoxide dismutase (SOD), and ascorbate peroxidase (APX) enzyme activities and lipid peroxidation of apricots after treatments were studied. According to the findings obtained from the study, it was observed that 5 ppm cytokinin and 1000 ppm lavender oil treatments of apricot fruit gave better APX and CAT enzyme activity, respectively. In addition, better SOD enzyme activity in fruit was obtained with MeJA+lavender oil treatments. As a result, it can be emphasized that the product quality of apricot fruit is preserved as both the eco-friendly application of MeJA, cytokinin, and lavender oil separately from each other and the treatment of combinations between these compounds activate the enzymatic antioxidant defense systems of apricot fruit after harvest.

scholarly journals FOLIAR APPLICATIONS OF ZINC, IRON AND MANGANESE INFLUENCE THE PLANT GROWTH AND FRUIT QUALITY OF PAPAYA CV. RED LADY

2020 ◽  
Vol 8 (5) ◽  
pp. 551-557
Author(s):  
Gurjot Singh Pelia ◽  
◽  
A K Baswal ◽  
Keyword(s):  
Plant Growth ◽  
Fruit Quality ◽  
Foliar Application ◽  
Ascorbic Acid Content ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Total Carotenoids ◽  
Heavy Soil

Prevalence of heavy soil is a major problem for fruit cultivation under Punjab conditions consequently leading to deficiency of several micro-nutrients including zinc (Zn), iron (Fe), and manganese (Mn) which adversely affects the growth and productivity. In this view, a study was planned to investigate the effect of foliar applications of zinc sulphate (ZnSO4), iron sulphate (FeSO4), and manganese sulphate (MnSO4) on vegetative growth, reproductive growth and fruit quality of papaya cv. Red lady. Plants sprayed with ZnSO4 (0.4 %) exhibited significantly highest plant height, plant girth, number of leaves, petiole length; initiated an earliest flowering and fruiting; and improved fruit quality viz., fruit weight, fruit length, titratable acidity, soluble solids concentrations, ascorbic acid content, total phenols content, and total carotenoids content as compared with the control and all other treatments. In conclusion, foliar application ZnSO4 (0.4 %) significantly improved plant growth and fruit quality in papaya cv. Red lady.

scholarly journals Influence of packaging and storage on the quality of osmodehydrated apricots (Prunus armeniaca L.)

2020 ◽  
Vol 8 (6) ◽  
pp. 1538-1543
Author(s):  
Omar Alajil ◽  
VR Sagar ◽  
SG Rudra ◽  
RR Sharma ◽  
MK Verma ◽  
...  
Keyword(s):  
Prunus Armeniaca ◽  
Prunus Armeniaca L ◽  
And Storage

Effect of Polyolefin Film on the Quality of Kiwifruit with 1-MCP Treatment in Modified Atmosphere Packages

2011 ◽  
Vol 236-238 ◽  
pp. 2769-2772 ◽  
Author(s):  
Xi Hong Li ◽  
Cheng Jun Wang ◽  
Ai Li Wang ◽  
Yao Xiao ◽  
Yao Tang ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Ascorbic Acid Content ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Modified Atmosphere ◽  
Flesh Firmness ◽  
Solids Concentration ◽  
And Control ◽  
Soluble Solids Concentration

Kiwifruit is very perishable especially at 20 °C. The quality of kiwifruit with 1-MCP treatment stored at 20 °C in modified packages was investigated. Three different polyolefin films, including 0.03mm thickness polyethylene (PE), 0.03mm and 0.05mm thickness poly (vinyl chloride) (PVC) films, were used as packaging films. Kiwifruit were fumigated with 1-MCP to delay ripeness and then packaged with the three films and control (air). O2 and CO2 concentrations in the packages, flesh firmness, soluble solids concentration (SSC), titratable acidity (TA) and ascorbic acid were measured. MAP treatments could postpone the increase of TTS, inhibit the reduction of TA, and avoid the decrease of flesh firmness. Kiwifruit packaged in 0.05mm PVC obtained 33% TA more than control fruit and approximate 25 % retention of initial firmness. However, MAP didn’t maintain more ascorbic acid content of kiwifruit. In conclusion, MAP using polyolefin films combination 1-MCP treatment, especially 0.05mm PVC, might be more effective for preserving the quality of kiwifruit.

scholarly journals Quality of the pirenic and apirenic fruits of surinam cherry tree accesses (Eugenia uniflora)

2021 ◽  
Vol 17 (5) ◽  
pp. 55-65
Author(s):  
Kelli Pirola ◽  
Marcelo Dotto ◽  
Américo Wagner Júnior ◽  
Darcieli Aparecida Cassol
Keyword(s):  
Seed Weight ◽  
Physicochemical Characteristics ◽  
Market Potential ◽  
Soluble Solids ◽  
Pulp Yield ◽  
Fresh Market ◽  
Cherry Tree ◽  
Eugenia Uniflora ◽  
Seedless Fruits

Surinam cherry is a native fruit tree with market potential. However, the pulp yield can be impaired by the size of the fruit seed. At UTFPR there is a genotype which produces seedless fruits, that can intensify the use of this species in orchards, and it is important to analyze the quality of the produced fruit. The aim of this study was to determine the quality of fruits from pirenic and apirenic accessions of Surinam cherry (Eugenia uniflora). In 2012, 2013 and 2015, 40 ripe fruits were collected from 23 Surinam cherry accessions, including an apirenic genotype one. The fruits were taken to the laboratory and analyzed regarding total fruit and seed weight, equatorial fruit and seed diameter, and total soluble solids content (SST). The twenty-third access presented physical characteristics that stood out from the other accesses, but, a larger size of the seed is an undesirable factor, once with industrialization it diminishes the use and yield of the pulp. Access 19, corresponding to the apirenic cherry tree, presented a smaller diameter and seed weight, which is a desirable feature. This genotype also has the physicochemical characteristics considered appropriate for processing or fresh market.

scholarly journals Abscisic acid on the quality of tomato fruits

2020 ◽  
Vol 1 (1) ◽  
pp. 38
Author(s):  
Carlos Agostinho Balate ◽  
Douglas Correa de Souza ◽  
Luis Felipe Lima e Silva ◽  
Luciane Vilela Resende ◽  
Sergio Tonetto de Freitas ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Fruit Quality ◽  
Tomato Fruit ◽  
Titratable Acidity ◽  
Physicochemical Characteristics ◽  
Quality Parameters ◽  
Soluble Solids ◽  
Exogenous Aba ◽  
Root Treatment

The use of abscisic acid (ABA) in agriculture has increased in the last few years due to the increase in ABA commercial availability at lower costs. The objective of this study was to determine the effect of exogenous ABA on tomato fruit quality parameters such as soluble solids (SS), total and soluble pectins, titratable acidity (TA) and flesh firmness. Tomatoes from the cultivar ‘Santa Clara’ were the study followed a complete randomized block desig, with four treatments in five repetitions. The treatments were plants not treated with ABA (control), foliar sprayed with ABA at 500 mg L-1, 150 mL drench with ABA at 500 mg L-1, or foliar plus drench treated with ABA. After harvesting, the physicochemical characteristics of the fruits were evaluated in the laboratory. All treatments were weekly applied to the plants from anthesis to harvest at fully maturity. Root treatment increased SS by up to 26.12%, increased ratio SS/TA, firmness and decreased soluble pectin. According to the results, it can be concluded that the application of ABA to leaves and roots can improve fruit quality by increasing the SS, ratio SS/TA. The method of application affects the SS content.

scholarly journals CRESCIMENTO VEGETATIVO, PRODUTIVIDADE E QUALIDADE DOS FRUTOS DO ABACAXIZEIRO ‘BRS IMPERIAL’ SOB LÂMINAS DE IRRIGAÇÃO

Irriga ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 398-410
Author(s):  
Weslley do Rosário Santana ◽  
Luã Víthor Chíxaro Almeida Falcão Rosa ◽  
Joabe Martins de Souza ◽  
Robson Bonomo
Keyword(s):  
Vegetative Growth ◽  
Block Design ◽  
Irrigation Management ◽  
Physicochemical Characteristics ◽  
Soluble Solids ◽  
Ananas Comosus ◽  
Espírito Santo ◽  
Physical Chemical ◽  
Espirito Santo

CRESCIMENTO VEGETATIVO, PRODUTIVIDADE E QUALIDADE DOS FRUTOS DO ABACAXIZEIRO ‘BRS IMPERIAL’ SOB LÂMINAS DE IRRIGAÇÃO     WESLLEY DO ROSÁRIO SANTANA1; LUÃ VÍTHOR CHÍXARO ALMEIDA FALCÃO ROSA1; JOABE MARTINS DE SOUZA1 E ROBSON BONOMO1   1Departamento de Ciências Agrárias e Biológicas, Universidade Federal do Espírito Santo, Rod. Governador Mario Covas, Km 60 - Litorâneo, CEP 29932-540, São Mateus, ES, Brasil. E-mail: [email protected]; [email protected]; [email protected]; [email protected]     1 RESUMO   Conhecer a demanda hídrica de uma cultura em uma região possibilita um melhor manejo da irrigação e desenvolvimento da cultura. Diante disso, objetivou-se avaliar o crescimento vegetativo, qualidade físico-química dos frutos e a produtividade do abacaxizeiro ‘BRS Imperial’ sob lâminas de irrigação nas condições de tabuleiro costeiro, no estado do Espírito Santo (ES). O experimento foi realizado na Universidade Federal do Espírito Santo, município de São Mateus, em um delineamento em blocos casualizados, com sete lâminas de irrigação (0%, 25%, 50%, 75%, 100%, 125% e 150% da evapotranspiração de cultura-ETc), quatro repetições e seis plantas úteis por parcela. Foram avaliadas características vegetativas da planta e físico-químicas dos frutos e a produtividade. Os resultados obtidos foram submetidos à análise de variância. Para as condições em estudo, a maior altura de planta e diâmetro do caule observado foi de 28,8 cm e 65,1 mm, respectivamente, ambos na lâmina aplicada referente a 69% da reposição da ETc. Para as características físico-químicas analisadas, as lâminas de irrigação aplicadas não influenciaram significativamente a cultura. A produtividade obtida foi de 40,41 t ha-1, com teor médio de sólidos solúveis totais de 16,46 ºBrix, valor superior ao mínimo exigido para a colheita e comercialização.   Palavras-chave: Ananas comosus (L.) Merril, características físico-químicas, massa do fruto, manejo da irrigação.     SANTANA, W. do R.; ROSA, L. V. C. A. F.; SOUZA, J. M. de; BONOMO, R. VEGETATIVE GROWTH, YIELD AND FRUIT QUALITY OF PINEAPPLE CROP ‘BRS IMPERIAL' UNDER IRRIGATION DEPTHS     2 ABSTRACT   Knowing the hydric demand of a crop in a region enables better irrigation management and crop development. Thus, this study aimed to evaluate the vegetative growth, physical-chemical quality of the fruits and the yield of the pineapple crop ‘BRS Imperial’ under irrigation depths in coastal conditions, in the state of Espírito Santo (ES). The experiment was conducted at the Federal University of Espírito Santo, municipality of São Mateus, in a randomized block design, with seven irrigation depths (0%, 25%, 50%, 75%, 100%, 125% and 150% of the evapotranspiration of the crop (ETc)), four replications and six useful plants per plot. The vegetative characteristics of the plant and the physicochemical characteristics of the fruits were evaluated, as well as the yield. The results were subjected to analysis of variance. For the conditions under study, the highest plant height and stem diameter observed were 28.8 cm and 65.1 mm, respectively, both in the applied irrigation depth referring to 69% of the replacement of the ETc. For the physical-chemical characteristics analyzed, the applied irrigation depths did not significantly influence the crop. The yield obtained was 40.41 t ha-1, with an average content of total soluble solids of 16.46 ºBrix, higher than the minimum required for harvest and commercialization.   Keywords: Ananas comosus (L.) Merril, physicochemical characteristics fruit, fruit mass, irrigation management.

scholarly journals Physicochemical quality of araçaúna and grumixama at different ripening stages

2020 ◽  
Vol 42 (6) ◽  
Author(s):  
Bruna Lara Alvarenga Barros ◽  
Moises Zucoloto ◽  
Sarah Ola Moreira ◽  
Tiago de Oliveira Godinho ◽  
Stanley Bravo Buffon ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Citric Acid ◽  
Ascorbic Acid Content ◽  
Titratable Acidity ◽  
Physicochemical Characteristics ◽  
Soluble Solids ◽  
Pulp Yield ◽  
Cross Sectional ◽  
Ripening Stages ◽  
Solids Content

Abstract The physicochemical characteristics of fruits of species native to the Atlantic Forest are little known, especially during ripening. The aim of this work was to evaluate the effect of the interaction between ripening period and post-harvest storage of araçaúna and grumixama. Fruits were harvested at three ripening stages: green, partially ripe and ripe, according to the epicarp color, and separated into two groups, being stored for 2 and 48 hours. The following variables were evaluated: longitudinal (LD) and cross-sectional (CD) diameter, LD / CD ratio, fresh fruit mass (FM), pulp yield (PY), pH, soluble solids content (SS), titratable acidity (TA), SS / TA ratio, and ascorbic acid content (AA). Araçaúna fruits stand out due to their high PY (74.43%), with low SS (2.07 ºBrix) and high TA (1.17% citric acid). However, harvesting fully ripe fruits increases SS by 21% and reduces TA by 32.5%. Grumixama fruits are slightly sweet (6.06 ºBrix), with low acidity (0.39% citric acid), high vitamin C content (206.94 mg of ascorbic acid/100g of pulp), and harvest must be performed when fruits are fully ripe. Both species have pulp of potential quality to be commercially exploited, especially for processing.

Water Extraction of Fruit Solids From Orange Pulp

1959 ◽  
Author(s):  
F. W. Wenzel ◽  
R. L. Huggart ◽  
R. W. Olsen
Keyword(s):  
Water Extraction ◽  
Soluble Solids ◽  
Orange Pulp ◽  
Processing Plants ◽  
First Time

Most of the citrus processing plants in Florida producing frozen orange concentrate are now using various types of equipment and processes, which are usually referred to as “pulp washing”, for the water extraction of fruit solids from orange pulp. Such processes, which were added for the first time in some Florida plants during the 1957–58 citrus season, have been adopted extensively during the 1958–59 season because of two reasons, (a) the increase in yield of soluble solids from fruit made possible by the water extraction of orange pulp from juice finishers and (b) the possibility for improving the quality of frozen orange concentrate by substitution of pulp washing procedures for a double juice finishing operation. That an increase in yield results from water extraction of pulp has been definitely established, but the question concerning the effect of such a process on the quality of frozen orange concentrate is still being debated by many persons in the industry. Paper published with permission.

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