scholarly journals Determination of Some Agronomic and Fruit Quality Characteristics of Some Watermelon Accessions from Turkish Watermelon Germplasm

2021 ◽  
Vol 9 (8) ◽  
pp. 1322-1328
Author(s):  
Ercüment Atlı ◽  
İlknur Solmaz ◽  
Nebahat Sarı ◽  
Haşim Kelebek
Keyword(s):  
Fruit Quality ◽  
Total Yield ◽  
Stem Diameter ◽  
Main Stem ◽  
Soluble Solids ◽  
Stem Length ◽  
Carotenoid Content ◽  
Array Detector ◽  
Fruit Characteristics ◽  
Significant Difference

This study has been conducted to determine the fruit quality parameters such as sugar and carotenoid content as well as plant and fruit characteristics of 11 local watermelon genotypes from watermelon genetic resources collection of Cukurova University, Department of Horticulture. First and 50% male and female flowering period, main stem length, main stem diameter, number of nodes on main stem, total yield, fruit weight, fruit length, fruit diameter, fruit rind thickness, total soluble solids (TSS), sugar and carotenoid contents were examined. Although there is no significant difference for main stem diameter and number of nodes on the main stem, significant differences were obtained for total yield, sugar and carotenoid composition of the genotypes. Carotenoid and sugar analysis were performed with a high-performance liquid chromatographic method coupled with diode-array detector (HPLC-DAD) and HPLC coupled with refractive index detector (RID), respectively. In all studied genotypes, cis-13-lycopene and β-carotene were the most abundant compounds. As expected for watermelon genotypes, the main sugar found in all studied genotypes was fructose. According to PCA analyses, genotypes were characterized by physical and chemical composition. Overall evaluation of results revealed that Kar 147 had better potential with carotenoid, sugar contents and fruit characteristics.

scholarly journals Effects of Short Day Conditioning, Chilling and GA3 Treatments to Yield and Fruit Quality in Strawberry Plug Transplants Aiming Early Fruit Production

2013 ◽  
Vol 41 (1) ◽  
pp. 263
Author(s):  
Emine ÖZDEMİR ◽  
Nurettin KAŞKA ◽  
Kazim GÜNDÜZ ◽  
Sedat SERÇE
Keyword(s):  
Fruit Quality ◽  
Total Yield ◽  
Titratable Acidity ◽  
Fruit Production ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Day Length ◽  
Fruit Characteristics ◽  
Short Day ◽  
Growing Seasons

In this study, we tested the effects of short day (SD), chilling (Ch) and gibberalic acid (GA3) treatments on the yield and fruit characteristics of ‘Camarosa’ and ‘Sweet Charlie’ plug plants under a freeze-protected greenhouse in Mediterranean conditions for two growing seasons in 2006-2007 and 2007-2008. The treatments included control (ambient day length and temperature); SD (8 h days) and ambient temperature; SD + Chilling (Ch) (18/12°C day/night temperatures); SD + Ch (10°C); SD + Ch (2°C); and, GA3 (10 ppm applied to the plants in November). In each growing season, the plug plants were planted in mid-August using bag culture. Yield, fruit weight, firmness, total soluble solids (SS), titratable acidity (TA), and SS/TA ratio were investigated. Considerable amounts of early yield (March and April) were recovered from ‘Sweet Charlie’; 116 and 72 g/plant in the first and second growing seasons, respectively. ‘Sweet Charlie’ also had consistently higher total yield than ‘Camarosa’ (457 vs. 400 g/plant in the 2006-2007 season and 446 vs. 406 g/plant in the 2007-2008 season). Treatment did not have a consistent effect on the fruit quality traits measured. The results indicated that although SD conditioning, Ch and GA3 treatments may have an effect on the total and early yield of strawberries, these effects may be cultivar-dependent and further regulated by environmental factors. Therefore, we propose that low-chilling varieties be utilized for early fruit production that can initiate flower buds in warmer, longer days.

scholarly journals Nitrogen and boron nutrition in grafted watermelon I: Impact on pomological attributes, yield and fruit quality

PLoS ONE ◽  
2021 ◽  
Vol 16 (5) ◽  
pp. e0252396
Author(s):  
Kemal Yalçın Gülüt
Keyword(s):  
Fruit Quality ◽  
Interactive Effect ◽  
Quality Attributes ◽  
Fruit Weight ◽  
Stem Diameter ◽  
Main Stem ◽  
Interactive Effects ◽  
Stem Length ◽  
N Application ◽  
The Individual

Watermelon is extensively consumed fruit across the globe. However, limited is known about interactive effect of nitrogen (N) and boron (B) nutrition on pomological, yield and fruit quality attributes of grafted watermelon. This two-year study tested the influence of different N and B doses on pomological, yield and fruit quality attributes of grafted watermelon under field conditions in Çukurova plains of Turkey. Four different N (0, 90, 180 and 270 kg ha-1) and two B doses (0 and 2 kg ha-1 B) were tested. The individual and interactive effects of N and B significantly altered pomological, yield and fruit quality attributes during both years. Overall, application of 270 kg ha-1 N and 2 kg ha-1 B improved yield, pomological and fruit quality attributes during both years. The highest values for yield, main stem length, stem diameter, fruit weight, fruit width, number nodes and branches per stem were recorded for 270 kg ha-1 N during both years. However, rind thickness was not altered by N application. Similarly, the highest values for quality attributes such as sucrose, glucose, fructose, citric acid, tartaric acid and ascorbic acid were noted for 270 kg ha-1 N during both years. Interestingly, no N application and 90 kg ha-1 N recorded the highest values of maleic acid during both years. The highest values of rind thickness, fruit length, fruit width and fruit weight were noted for 2 kg ha-1 B during both years, while B application had no effect on main stem length, main stem diameter, number of nodes and number of branches. Regarding N by B interactions, 180 and 270 kg ha-1 N with both B doses observed the highest values for yield, pomological and quality attributes during each year. These results indicate that N has significant contribution towards yield, pomological attributes and fruit quality of grafted watermelon. Therefore, N should be applied at the rate of 270 kg ha-1 for better yield, pomological attributes and fruit quality. Nonetheless, where necessary grafted watermelon should be fertilized with 2 kg ha-1 B for better fruit quality and pomological attributes.

scholarly journals Sweet cherry fruit quality by half-intensive orchard management

2006 ◽  
pp. 76-79
Author(s):  
Sándor Thurzó ◽  
József Racskó ◽  
Mária Dani ◽  
Gábor Drén
Keyword(s):  
Fruit Quality ◽  
Sweet Cherry ◽  
Quality Parameters ◽  
Soluble Solids ◽  
Stem Length ◽  
Optimal Harvesting ◽  
Fruit Characteristics ◽  
Cherry Orchard ◽  
Solids Content

We made our study on fruit quality in the summer of 2005 on 6 cultivars („Bigarreau Burlat”, „Germersdorfi 3”, „Germersdorfi 45”, „Katalin”, „Linda” and „Van”) in a half-intensive sweet cherry orchard in Siófok. We measured fruit diameter, fruit width, fruit height, stem length and stem weight, fruit and pit weight and total soluble solids content. There were large differences among cultivars in the datas. These differences are due to genetic fruit-characteristics, because all other conditions were the same. We harvested fruits by 3 cultivars two times to check their characteristics on two ripening phases. We examined on these cultivars all the above listed fruit quality parameters. With these data we can be informed about the role of later than optimal harvesting time and how big an effect it has on fruit quality.

scholarly journals Fruit quality of ‘Eva’ e ‘Princesa’ apples grown under nitrogen fertigation in semiarid climate

2015 ◽  
Vol 19 (10) ◽  
pp. 967-972 ◽  
Author(s):  
João M. de S. Miranda ◽  
Ítalo H. L. Cavalcante ◽  
Inez V. de M. Oliveira ◽  
Paulo R. C. Lopes ◽  
Joston S. de Assis
Keyword(s):  
Fruit Quality ◽  
Skin Color ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Economic Viability ◽  
Fruit Firmness ◽  
Fruit Characteristics ◽  
Apple Cultivars ◽  
Fruit Mass

ABSTRACTThe production of high quality fruits is a necessary factor for the adaptation and production of plant species with economic viability. Thus, an experiment was conducted from July 2012 to January 2013 to evaluate the fruit quality of the ‘Eva’ and ‘Princesa’ apple cultivars as a function of nitrogen fertilization in Petrolina, PE, Brazil. The experimental design consisted of randomized blocks, with treatments distributed in a factorial arrangement 2 x 4, corresponding to apple cultivars (Eva and Princesa) and nitrogen doses (40; 80; 120 and 160 kg of N ha-1), with four replications and three plants in each plot. The fruit characteristics, such as fruit mass, skin color (luminosity, chromaticity, and colour angle), size (width and length), pulp firmness, titratable acidity (TA), soluble solids (SS) and the SS/TA ratio, were recorded. Nitrogen doses do not affect fruit quality of studied apple cultivars. The fruit quality attributes are different between apple cultivars: fruit firmness, SS/TA ratio, fruit mass and fruit diameter are superior for Princesa cultivar, while the fruit length for Eva cultivar is superior.

scholarly journals Yield and Fruit Quality Traits of Rambutan Cultivars Grafted onto a Common Rootstock and Grown at Two Locations in Puerto Rico

2011 ◽  
Vol 21 (1) ◽  
pp. 136-140 ◽  
Author(s):  
Ricardo Goenaga ◽  
David Jenkins
Keyword(s):  
Fruit Quality ◽  
Ethnic Diversity ◽  
Soluble Solids ◽  
Quality Traits ◽  
Tropical Fruit ◽  
Solids Concentration ◽  
Nephelium Lappaceum ◽  
Significant Difference ◽  
Fruit Quality Traits ◽  
Soluble Solids Concentration

The globalization of the economy, increased ethnic diversity, and a greater demand for healthy and more diverse food products have opened a window of opportunity for the commercial production and marketing of tropical fruit, including rambutan (Nephelium lappaceum). There is a lack of formal experimentation to determine yield performance and fruit quality traits of rambutan cultivars. Eight rambutan cultivars (Benjai, Gula Batu, Jitlee, R-134, R-156Y, R-162, R-167, and Rongren) grown on an Ultisol and an Oxisol soils were evaluated for 5 years at Corozal and Isabela, PR, respectively. There was a significant difference in the number and weight of fruit per hectare between locations, averaging 415,103 fruit/ha and 13,826 kg·ha−1, respectively, at Corozal and 167,504 fruit/ha and 5149 kg·ha−1, respectively, at Isabela. At Corozal, ‘R162’ had the highest 5-year mean for number and weight of fruit per hectare, but this cultivar was not significantly different from the rest except for ‘Benjai’ and ‘R-156Y’, which had significantly lower values. At Isabela, cultivars Gula Batu and R-162 had significantly higher number of fruit per hectare but the latter was not different from ‘Benjai’. Overall, there were no differences in soluble solids concentration except for cultivars Gula Batu and R-156Y, which had significantly lower values at both locations. Cultivar R-162 had higher number and weight of fruit per hectare and high soluble solids concentration at both locations, making it suitable for planting in various agroenvironments particularly on Ultisols typical of the humid tropics.

scholarly journals Weather Affects Seedless Watermelon Yield, But Not Fruit Size or Quality

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 748E-748 ◽  
Author(s):  
Timothy E. Elkner* ◽  
David H. Johnson
Keyword(s):  
Fruit Quality ◽  
Total Yield ◽  
Fruit Size ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Fruit Number ◽  
Seedless Watermelon

Medium-sized triploid watermelons were evaluated in southeast Pennsylvania in 2002 and 2003 to determine the best adapted cultivars for this region. The 2002 season was unusually hot and dry, while 2003 was unusually cool and wet. Yields and fruit quality were compared for the eight cultivars that were grown both seasons to determine the effect of weather on seedless watermelon. Cooler temperatures reduced total fruit number and total yield but not average fruit weight or soluble solids. Researchers evaluating triploid watermelons over several seasons can compare size and °Brix among cultivars, but will need to be cautious when predicting total yields.

scholarly journals QUALIDADE E PRODUTIVIDADE DE FRUTOS DE FIGO CULTIVADO EM TRÊS DENSIDADES DE PLANTIO

2018 ◽  
Vol 14 (4) ◽  
pp. 161-166
Author(s):  
Scheila Lucia Ecker ◽  
Clevison Luiz Giacobbo ◽  
Leandro Galon ◽  
Adriana Lugaresi ◽  
Gian Carlos Girardi
Keyword(s):  
Fruit Quality ◽  
Dry Matter ◽  
Fruit Size ◽  
Dry Mass ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Planting Density ◽  
Significant Difference ◽  
Fig Tree

The objective of this work was to verify the influence of planting density on productivity and fruit quality of the fig tree. The design was used in three blocks, the plants of the cultivar Roxo de Valinhos were submitted to three planting spacings: 5 x 0.5 m; 5 x 1.0 m; and 5 x 1.5 m. The evaluated characteristics were: length of branches; average weekly growth of branches; fruit size; average fruit weight;soluble solids (°Brix); yield of mature fruits; productivity of green fruits; accumulated productivity; and dry mass of fruits.The length of the branches was not influenced by planting spacing, the plants conducted at lower densities presented higher productivity, both of green fruits and accumulated productivity.Plants submitted to lower planting density produced fruits with higher dry matter, but these were smaller in size, but without significant difference for those submitted to lower density. It wasconcluded that productivity is directly affected by fig planting density, but not all the qualitative aspects of the fruits were affected.

scholarly journals The effect of pruning systems on yield and fruit quality of grafted tomato

2017 ◽  
Vol 35 (2) ◽  
pp. 247-251
Author(s):  
Isabel Mourão ◽  
Luis M Brito ◽  
Luisa Moura ◽  
Maria E Ferreira ◽  
Sofia R Costa
Keyword(s):  
Fruit Quality ◽  
Total Yield ◽  
Quality Parameters ◽  
Soluble Solids ◽  
Planting Density ◽  
Average Yield ◽  
Tomato Plants ◽  
Cotyledonary Nodes ◽  
Yield And Quality ◽  
Number Of Stems

Abstract Vegetable grafting is an increasingly used crop management strategy that aims to prevent soilborne biotic and abiotic stresses. For tomato crops, the number of stems per grafted plant determines planting density and crop exposure to sunlight. The effects of pruning grafted plants on yield and fruit quality have not been established, and this information is crucial to support decision-making by growers. A greenhouse experiment was run in the spring/summer season in the NW Portugal to assess the yield and quality parameters for grafted tomato plants (cv. Vinicio grafted onto Multifort rootstock) pruned to 2, 3 and 4 stems developed from the plant first nodes, or pruned to 2 stems developed from cotyledonary nodes, according to common practice. Total yield was significantly increased for the double-stemmed tomato plants, irrespectively of node origin (average yield 26.5 kg/m2), as compared to the 3- and 4-stemmed plants (average yield 19.5 kg/m2). These results can be explained by root system limitations to uptake water and nutrients coupled with the stronger competition between stems for the 3- and 4-stemmed plants. Fruit quality assessed through firmness (1.0 kg/cm2), soluble solids (5.1°Brix), acidity (1.0 g/100 g fresh weight), pH (4.4) and dry mater content (4.9%) was not affected by pruning systems. The greater yield obtained from double-stemmed plants offsets the increased planting and seedlings costs of using grafted tomato plants, particularly so for double-stemmed plants grown from first nodes, as they do not require intensive nursery care and are therefore less costly than those grown from cotyledonary nodes.

Effects of Trichoderma harzianum on the yield and fruit quality of tomato plants (Lycopersicon esculentum) grown in an unheated greenhouse

2006 ◽  
Vol 46 (1) ◽  
pp. 131 ◽  
Author(s):  
U. Bal ◽  
S. Altintas
Keyword(s):  
Fruit Quality ◽  
Trichoderma Harzianum ◽  
Root Zone ◽  
Total Yield ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Marketable Yield ◽  
Growing Media ◽  
Growing Period

Trichoderma harzianum was applied to seedling growing media (a peat and soil-based mixture or greenhouse soil) at the time of sowing, at transplanting to vials and at planting. The factorial experiment using 2 seedling growing media, 2 cultivars and 4 dosages of T. harzianum at 0 (control), 4 g/m2, 10 g/m2 and 24 g/m2 showed that the Trichoderma dosage had no significant effect on the yield or fruit quality. None of the 3 factor interactions between the criteria studied, that is, total yield, marketable yield, early yield, individual fruit weight, total soluble solids and titratable acidity, were significant except for fruit diameter. The 3 factor combination of Peat × Belleveu F1 × 10 g/m2 resulted in the highest total yield, marketable yield and early yield with 1552, 1373 and 681 g/plant, respectively. The interaction between media and cultivars was significant for all the yield characteristics studied. However, the main effect of T. harzianum on early yield was the highest at 4 g/m2, producing 527 g/plant in comparison to the control with 374 g/plant. It was, therefore, hypothesised that the positive effect of T. harzianum, observed in the early yield, may be extended to the whole growing period by further applications, that is, by periodical renewal of the T. harzianum population at the root zone.

scholarly journals Deficit Irrigation to Enhance Fruit Quality of the ‘African Rose’ Plum under the Egyptian Semi-Arid Conditions

Agronomy ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1405
Author(s):  
Islam F. Hassan ◽  
Maybelle S. Gaballah ◽  
Hanan M. El-Hoseiny ◽  
Mohamed E. El-Sharnouby ◽  
Shamel M. Alam-Eldein
Keyword(s):  
Fruit Quality ◽  
Deficit Irrigation ◽  
Total Yield ◽  
Fruit Yield ◽  
Soluble Solids ◽  
Limited Information ◽  
Yield And Quality ◽  
Arid Conditions ◽  
Semi Arid

Evolved in South Africa and released to market in 2009, the ‘African Rose’ plum has been introduced and grown under the Egyptian semi-arid conditions since 2010. Within that time, this cultivar has faced significant fruit quality issues, mainly poor color and low total soluble solids (TSS). Several trials using foliarly applied growth regulators have been conducted, but with little conspicuous results on fruit yield and quality. There is very limited information about the relationship between irrigation regime and fruit quality for this cultivar. Therefore, a field experiment was conducted to study the effect of deficit irrigation on the quality of the ‘African Rose’ plum during the 2019 and 2020 seasons. Five-year-old hedge growing trees were subjected to three deficit irrigation regimes: 100% (control), 80%, and 60% of the crop evapotranspiration (ETc) after the pit hardening stage until the end of the harvest season (May to June period) were evaluated. Results indicated that deficit irrigation positively enhanced the levels of abscisic acid (ABA), total phenols, and anthocyanins with improved fruit TSS and maturity index, although fruit yield, acidity, size, and firmness were decreased. Deficit irrigation could be suggested as a sustainable novel solution to improve the fruit quality of the ‘African Rose’ plum grown under the semi-arid conditions of Egypt. Although the total yield and some quality characteristics were not improved, the early harvested fruit with enhanced color and taste could be a good start for additional research to solve other quality-related issues under such conditions.

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