scholarly journals Bamboo Biochar Pyrolyzed at Low Temperature Improves Tomato Plant Growth and Fruit Quality

Agriculture ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 153 ◽  
Author(s):  
Ratna Suthar ◽  
Cun Wang ◽  
M. Nunes ◽  
Jianjun Chen ◽  
Steven Sargent ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Plant Growth ◽  
Fruit Quality ◽  
Growth Index ◽  
Application Rate ◽  
Soluble Solids ◽  
Solanum Lycopersicum L ◽  
Different Temperatures ◽  
Solids Content

As a soil amendment, biochar can significantly improve soil quality and crop growth. Few studies, however, have explored biochar effects on crop quality. This study investigated the amendment effects of bamboo biochar pyrolyzed at different temperatures on plant growth and fruit quality of tomato (Solanum lycopersicum L.). Tomato ‘Micro-Tom’ plants were grown in a sand medium amended with 0, 1, and 3% of biochars produced at 300 °C, 450 °C, and 600 °C, respectively. Plant growth was monitored, and fruit harvested at the red stage was analyzed for color, texture, soluble solids content, sugars, ascorbic acid, and acidity. Results showed that biochars produced at 300 °C and amended at 3% or pyrolyzed at 450 °C and amended at 1% increased plant growth index. Contents of glucose, fructose, soluble solids, ascorbic acid, and sugar-to-acid ratios of fruits produced from the two treatments were significantly higher than the other treatments. The improved plant growth and fruit quality were related to the higher concentrations of NO3, P, Ca, and Mg in the growing media. Our results suggest that optimizing biochar use can be achieved by targeting biochar production conditions and application rate, which resulted in desirable amendment and fruit quality effects.

scholarly journals Influence Of Soil Type On Yield And Quality Of Different Apple Cultivars

2017 ◽  
Vol 74 (1) ◽  
pp. 21
Author(s):  
Alina Viorica ILIE ◽  
Cristina PETRISOR ◽  
Dorel HOZA ◽  
Viorel OLTENESCU
Keyword(s):  
Ascorbic Acid ◽  
Fruit Quality ◽  
Soil Type ◽  
Dry Matter ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
Yield And Quality ◽  
Apple Cultivars ◽  
Solids Content

The objective of this study was to determine influence of different soil type on apple yield and quality. To investigate the variation in fruit quality, apples were harvested at commercial maturity on two different soil type. The investigations was conducted in experimental apple orchards located in Focsani region on two different soil type: luvic  brown typical and  luvic brown pseudogleizate. Fruits of Jonathan and Golden Delicios cultivars were tested for color, soluble solids content, total acidity, ascorbic acid, anthocyanins content and chlorophyls content with specific analytrical methods. At harvest yield, dry matter, soluble solids content, ascorbic acid and acidity were affected by soil type. In this study, no significant soil effect was found on color, anthocyanins and chlorophyll fruit content. The results obtained in this study suggest that luvic brown pseudogleizate soil leading to increased yields and enhanced fruit quality.

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 Fruit Abscission and Fruit Quality of Apples Following Use of Dicamba to Control Preharvest Drop

1990 ◽  
Vol 115 (3) ◽  
pp. 390-394 ◽  
Author(s):  
Richard P. Marini ◽  
Ross E. Byers ◽  
Donald L. Sowers ◽  
Rodney W. Young
Keyword(s):  
Fruit Quality ◽  
Starch Content ◽  
Soluble Solids ◽  
Naphthaleneacetic Acid ◽  
Soluble Solids Content ◽  
Fruit Abscission ◽  
Fruit Drop ◽  
Solids Content ◽  
Methoxybenzoic Acid

Five apple (Malus domestica Borkh.) cultivars were treated with dicamba at concentrations of 0 to 200 mg·liter-1 during 3 years. Although the response varied with cultivar, dose, and year, dicamba always delayed fruit abscission. At similar concentrations, dicamba usually reduced fruit drop more than NAA, but less than fenoprop. Dicamba at 10 mg·liter-1 effectively delayed drop of `Delicious', whereas 20 to 30 mg·liter-1 was required for `Red Yorking', `Rome', `Winesap', and `Stayman'. Dicamba did not influence flesh firmness, soluble solids content, water core, or starch content at harvest or after storage. Chemical names used: naphthaleneacetic acid (NAA); 2-(2,4,5-trichlorophenoxy)propionic acid (fenoprop); 3,6dichloro-2-methoxybenzoic acid (dicamba).

scholarly journals Pepino Dulce (Solanum muricatum Ait.) Quality Characteristics Respond to Nitrogen Nutrition and Salinity

1993 ◽  
Vol 118 (1) ◽  
pp. 86-91 ◽  
Author(s):  
D. Pluda ◽  
H.D. Rabinowitch ◽  
U. Kafkafi
Keyword(s):  
Ascorbic Acid ◽  
Fruit Quality ◽  
Nitrogen Nutrition ◽  
Fruit Size ◽  
Chloride Concentration ◽  
Fruit Shape ◽  
Quality Characteristics ◽  
Chloride Ions ◽  
Soluble Solids

The effect of fertigation with N-NO3 at 3, 6, or 12 mmol·liter-1, and 0, 3, or 6 dS·m-1 chloride ions on fruit quality of three pepino dulce selections was studied. Genotypes varied considerably in their response to mineral treatments in most quality characteristics. Variation in fruit size was greatly reduced when clusters were thinned to three fruit. Increasing chloride concentration in the nutrient soltuion reduced fruit size significantly and ascorbic acid concentration relative to the control, but fruit shape was not affected. Increases in NaCl salt, but not N concentration, resulted in significantly higher soluble solids concentration (SSC) and firmness in all three genotypes. Electrical conductivity, acidity, and pH were significantly affected by the two mineral treatments in the first trial, but remained unchanged in the second season. Fruit firmness, SSC, and acidity declined by 12% to 30%, whereas ascorbic acid content increased during 14 days storage at room temperature. These changes depended on genotype and environment during fruit growth and development. Organoleptic ratings were highest in salt-treated plants. Fruit quality of pepino dulce may be manipulated by crop management, thus improving its acceptability in Western markets.

scholarly journals Effects of Preharvest Gibberellic Acid Applications on Fruit Quality of ‘0900 Ziraat’ Sweet Cherry

2009 ◽  
Vol 19 (1) ◽  
pp. 127-129 ◽  
Author(s):  
Fatih A. Canli ◽  
Hikmet Orhan
Keyword(s):  
Gibberellic Acid ◽  
Fruit Quality ◽  
Sweet Cherry ◽  
Prunus Avium ◽  
Soluble Solids ◽  
Pedicel Length ◽  
Yellow Color ◽  
Solids Content ◽  
Optimum Application

The objective of this study was to determine the effects of gibberellic acid (GA3) applications on fruit quality of ‘0900 Ziraat’ sweet cherry (Prunus avium), a low cropping and a large-fruited variety. ‘0900 Ziraat’ trees were sprayed with 0, 15, 20, and 25 ppm GA3, when the fruit were at their straw-yellow color stage. Fruit quality was evaluated at harvest in terms of size, firmness, pedicel length, and soluble solids content (SSC) to determine the optimum application. Fruit treated with GA3 were significantly larger and firmer than the controls. There were no differences in fruit firmness within the different levels of GA3 treatment; however, fruit treated with 20 and 25 ppm GA3 were significantly larger than the fruit treated with 15 ppm GA3. Trees treated with the optimum concentration of GA3 (25 ppm) in two different locations yielded fruit with 13.4% and 14.1% greater weight and 38% and 25% higher firmness. GA3 treatments did not affect pedicel length. The effect of GA3 application on SSC was complex; there was a significant interaction between GA3 and location. Being firmer than the controls, the GA3-treated fruit could be harvested at a later date than the controls.

Phenolic compounds profile, carbohydrates and external fruit quality of the ‘Concorde’ pear (Pyrus communisL.) after bagging

2012 ◽  
Vol 92 (1) ◽  
pp. 67-75 ◽  
Author(s):  
Metka Hudina ◽  
Franci Stampar ◽  
Primoz Orazem ◽  
Maja Mikulic Petkovsek ◽  
Robert Veberic
Keyword(s):  
Phenolic Compounds ◽  
Fruit Quality ◽  
Pyrus Communis ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
Pear Fruit ◽  
European Pear ◽  
Pyrus Communis L ◽  
Solids Content

Hudina, M., Stampar, F., Orazem, P., Mikulic Petkovsek, M. and Veberic, R. 2012. Phenolic compounds profile, carbohydrates and external fruit quality of the 'Concorde' pear ( Pyrus communis L.) after bagging. Can. J. Plant Sci. 92: 67–75. The practice of pre-harvest bagging has been extensively used in several fruit crops to improve the commercial value of the fruit. The purpose of this study was to investigate the effect of fruit bagging on internal and external quality of the European pear (Pyrus communis L.) cv. ‘Concorde’. Fruit quality was determined by chemical analyses (individual sugars, organic acids and phenolic compounds) and physical characteristics in 2005 and 2006. Bagging of pear fruit after June drop until harvest significantly reduced fruit length in both observed years. Fruit bagging resulted in increased firmness of the fruit only in 2006. Soluble solids content was significantly lower in bagged fruit in 2006. In 2005, bagging had no influence on firmness and soluble solids content. Bagging improved fruit surface lightness, since L* was higher in the bagged than in the control fruit in both years. Also the a* parameter was higher in bagged fruit. We noted significant influence of bagging on total sugars content. Bagging European pear fruit decreased the content of phenolic compounds in skin (catechin, chlorogenic acid, epicatechin, p-coumaric acid, quercetin 3-O-galactoside, quercetin 3-O-glucoside, quercetin 3-O-rhamnoside). The removal of bags 7 d before harvest significantly increased glucose, shikimic and fumaric acids.

scholarly journals Yield and fruit quality of apple from conventional and organic production systems

2008 ◽  
Vol 43 (3) ◽  
pp. 333-340 ◽  
Author(s):  
Cassandro Vidal Talamini do Amarante ◽  
Cristiano André Steffens ◽  
Álvaro Luiz Mafra ◽  
Jackson Adriano Albuquerque
Keyword(s):  
Fruit Quality ◽  
Management System ◽  
Production Systems ◽  
Titratable Acidity ◽  
Organic Production ◽  
Soluble Solids ◽  
Apple Trees ◽  
Growing Seasons ◽  
Solids Content

The objective of this study was to assess the yield and fruit quality of apple produced with a conventional and an organic production systems in Southern Brazil. The orchards consisted of alternate rows from 10 to 12-year old 'Royal Gala' and 'Fuji' apple trees on M.7 rootstocks, grown as slender spindles, on 4x6 m spacing. Eighteen apple trees of each cultivar and management system were randomly selected and assessed for nutrition, flowering, fruit set, yield, and fruit quality during two growing seasons (2002/2003 and 2003/2004). The organic management system resulted in lower concentrations of K, Mg, and N in leaves and fruits, and in smaller fruits for both cultivars, and lower fruit yield for 'Fuji' than from the conventional production system. For both cultivars, fruits from the organic orchard harvested at commercial maturity had a more yellowish skin background color, higher percentage of blush in the fruit skin, higher soluble solids content, higher density, higher flesh firmness, and higher severity of russet than fruits from the conventional orchard. Fruit from the organic orchard had lower titratable acidity in 'Royal Gala', and higher incidence of moldy core and lower incidence of watercore in 'Fuji', than fruit from the conventional orchard. A non-trained sensory panel detected no significant differences for fruit attributes of taste, flavor and texture between fruit from the production systems for either cultivar.

scholarly journals Quality of ‘Hayward’ Kiwifruit in Prolonged Cold Storage as Affected by the Stage of Maturity at Harvest

Horticulturae ◽  
2021 ◽  
Vol 7 (10) ◽  
pp. 358
Author(s):  
Tal Goldberg ◽  
Harel Agra ◽  
Ruth Ben-Arie
Keyword(s):  
Fruit Quality ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Prolonged Storage ◽  
Full Bloom ◽  
Long Term Storage ◽  
Solids Content ◽  
Term Storage

The effect of ‘Hayward’ kiwifruit maturity at harvest on fruit quality during long-term storage at −0.5 °C was evaluated by harvesting the fruit several times, at different stages of maturity. The progress of maturation on the vine was monitored weekly from 136 DAFB (days after full bloom). Fruit were harvested for storage at three points and stored for 3–6 months in regular air (RA), or for 6–10 months in a controlled atmosphere (CA), with or without prestorage exposure to 1-methylcyclopropene (1-MCP). The softening rate under both storage regimes decreased with the advance in fruit maturation on the vine, as indicated by increasing soluble solids content (SSC), and declining firmness. As a result, the fruit from the first harvest (152 DAFB), which were the firmest at harvest, were the softest at the end of both storage regimes. Delaying harvest also decelerated the decline in acidity during storage, so that fruit picked last maintained the highest titratable acidity (TA) upon removal from storage. The overall fruit quality after shelf life, following prolonged storage in either RA or CA, was improved by delaying harvest to late November (ca. 200 DAFB). The harvest criteria for fruit with the best storage potential were dry matter (DM) > 17%, SSC > 7%, TA 2.0–2.6%, with more than 40% of the DM non soluble. From a commercial aspect the rule should therefore be ‘Last in, last out’ (LILO).

scholarly journals Effect of Soil Solarization and Fumigation on Productivity and Fruit Quality of Strawberry

HortScience ◽  
2006 ◽  
Vol 41 (4) ◽  
pp. 972B-972
Author(s):  
Mohamed Ragab
Keyword(s):  
Ascorbic Acid ◽  
Fruit Quality ◽  
Methyl Bromide ◽  
Root Length ◽  
Total Yield ◽  
Soluble Solids ◽  
Crown Diameter ◽  
Number Of Leaves ◽  
And Control

A study of solarization and fumigation with methyl bromide (MB) on productivity and fruit quality of strawberry were investigated during two successive seasons of 2002–03. There were nine treatments: fumigation with methyl bromide (MB), solarization, their combination, and Nemaless. Results demonstrate that plant height, number of leaves per plant, average leaf area, root length, and crown diameter were significantly increased by fumigation with MB as compared with solarization or using Nemaless in the two tested seasons. Significant increments were obtained also in early and total yield, as well as total soluble solids and ascorbic acid when soil was fumigated with MB compared with solarization or using Nemaless. The highest total yield found with treatments was MB at 70 g/m2, followed by MB at 50 g/m2, 2-month solarization plus MB at 30 g/m2, 1 month plus MB at 30 g/m2, MB at 30 g/m2, 2 months solarization, one month solarization, Nemaless, and control in the both tested seasons, respectively. Nemaless caused significant increments in early and total yield compared with the control in the two tested seasons. The results of this study provide evidence to suggest that a better understanding of different fumigation methods may aid us in the efforts to improve management of strawberry production.

scholarly journals Characterization of tomato growth and fruit quality under foliar ammonium sprays

2017 ◽  
Vol 2 (1) ◽  
Author(s):  
Mohammad Kazem Souri ◽  
Sara Dehnavard
Keyword(s):  
Plant Growth ◽  
Ammonium Sulfate ◽  
Fruit Quality ◽  
Foliar Application ◽  
Tomato Fruit ◽  
Nitrogen Concentration ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Quality Factors

AbstractThis study was done to evaluate the effects of foliar application of ammonium sulfate on growth and fruit quality of tomato plants under hydroponic culture system. Over four months of tomato plant growth, plants were sprayed once per week with different concentrations of ammonium sulfate (0, 50, 100 and 200 mM), as well as with 50 mM every second day. Foliar application of ammonium sulfate led to reductions in many growth and quality parameters, and higher ammonium concentrations exerted greater reductions. Number of leaves, fresh weight of shoots, percentage of leaf dry weight and fruit yield were negatively associated with the treatment with ammonium sulfate. However, leaf nitrogen concentration, fruit diameter and fruit length increased significantly by the application of ammonium. Fruit quality factors were also affected by ammonium sulfate spray treatments. The maximum pH, titratable acidity and total soluble solids (TSS) were obtained from the lowest (50 mM) weekly application of ammonium sulfate. The results indicate that foliar application of ammonium in moderate concentrations could have beneficial effects on plant growth and quality of tomato fruit.

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