scholarly journals Fruit performance of kiwifruit in the loess area of Northwest China

2019 ◽  
Author(s):  
Kaibin Guo ◽  
Zhen Guo ◽  
Yun Guo ◽  
Guang Qiao
Keyword(s):  
Soil Ph ◽  
Fruit Quality ◽  
Soil Property ◽  
Pearson Correlation ◽  
Soluble Sugar ◽  
Northwest China ◽  
Fruit Shape ◽  
Soluble Solids ◽  
Shanxi Province ◽  
Loess Area

AbstractAttempts had been made to provide evident insight into the performance of fruit quality and the status of soil property, and explicate the soil property factors that dominantly affect the fruit quality of kiwifruit. Currently, 8-year-old kiwifruit cultivar ‘Hayward’, which was grown in Zhouzhi County (108°37′ E, 33°42′N), Shanxi Province of China, was used as materials. The results of Pearson correlation coefficient illustrated that the soil organic matter (SOM) content was positively related to soil properties except the soil PH. Moreover, based on the canonical correlation analysis (CCA), canonical variables alkaline hydrolyzable-N (AN), available ferrum (AFe), available boron (AB), PH in soil property index and the fresh weight of single fruit (FW), fruit shape index (FI), total soluble solids (TSS), titratable acidity (TA), total soluble sugar (SS) in fruit quality parameter were selected. And the ‘best’ regression equation (model) indicated that the effects of soil property somewhat varied among ‘Hayward’ fruit qualities in the loess area of Northwest China. Specifically, FW and SS could be mainly affected by soil AN, and FI affected by soil AB and PH. Fruit SS mostly depended upon soil AFe, whereas TSS was affected by soil AN, AFe and PH. The effect of soil PH on fruit quality is probably achieved, however, affecting the absorption of soil nutrients.

scholarly journals Comparative Studies on the Quality and Lycopene Content of Pomelo (Citrus grandis Osbeck) Cultivars

2020 ◽  
Vol 15 (9) ◽  
pp. 1934578X2095329
Author(s):  
Hongjuan Yang ◽  
Min Li ◽  
Xiaohua Kui ◽  
Yueting Sun ◽  
Jian-an Li ◽  
...  
Keyword(s):  
Vitamin C ◽  
Fruit Quality ◽  
Acid Content ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Shape Index ◽  
Fruit Shape ◽  
Soluble Solids ◽  
Titratable Acid ◽  
Lycopene Content

Three cultivars of pomelo “Guanximiyou” (GX) and its variants “Hongroumiyou” (HR) and “Sanhongmiyou” (SH) were selected as experimental materials to evaluate the quality and edible value of the fruit. In this study, the fruit quality and lycopene contents were investigated. The results show that among the 3 cultivars used, the contents of soluble solids, vitamin C, and total phenol in the juice sac of SH were the highest, followed by HR and GX. SH has the largest fruit shape index, soluble sugar content: GX > HR > SH, and titratable acid content: GX < HR < SH. From our findings, the content of lycopene was the highest in SH, followed by HR and GX. SH has the greatest potential for production due to its appreciable content of lycopene and fruit quality.

scholarly journals Growth and Comprehensive Quality Index of Tomato under Rain Shelters in Response to Different Irrigation and Drainage Treatments

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Guang-cheng Shao ◽  
Ming-hui Wang ◽  
Na Liu ◽  
Min Yuan ◽  
Prem Kumar ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Quality Index ◽  
Soluble Sugar ◽  
Principal Component ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Root Weight ◽  
Drought Treatment ◽  
Soil Desiccation ◽  
Underground Pipe

The effects of two levels of irrigation water (100%, 60%) and buried underground pipe depths (0.8 m, 0.6 m) under rain shelters’ conditions on yield and some quality parameters of tomato were investigated. A fully randomized factorial experiment was conducted between April and August in 2011 and 2012 at Hohai University. It was found that drainage treatments enhanced biomass production, whereas soil desiccation led to biomass reduction. At 60 cm buried underground pipe depths, the drought treatments increased the mean root weight and root-shoot ratio by 14% and 39%, respectively. The main effects of drainage treatments on the fruit quality were increases in total soluble solids (TSS), soluble sugar (SS), and vitamin C (VC) compared to the control. In addition, drainage treatments increased the average yield by 13% and 9%, respectively, in both years. The drought treatments did not significantly alter fruit yield, although mean single fruit weight was slightly reduced. Instead, these treatments tend to have great potential to improve fruit quality (TSS, SS, and VC) to variable extents. In both years, the drought treatment at 60 cm buried underground pipe depths proved to possess the highest comprehensive quality index based on Principal Component Analysis.

scholarly journals Effects of Interspecific Grafting Between Capsicum Species on Scion Fruit Quality Characteristics

HortScience ◽  
2021 ◽  
pp. 1-7
Author(s):  
Andrey Vega-Alfaro ◽  
Paul C. Bethke ◽  
James Nienhuis
Keyword(s):  
Fruit Quality ◽  
Agricultural Research ◽  
Sweet Pepper ◽  
Fruit Shape ◽  
Quality Characteristics ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Width Ratio ◽  
Soilborne Pathogens ◽  
Soil Pathogens

Production of Capsicum annuum peppers is often limited, especially in tropical environments, by susceptibility to soil pathogens including Ralstonia solanacearum. Grafting desirable cultivars onto selected rootstocks can increase adaptation to abiotic stress and is an alternative to pesticides for managing soilborne pathogens. Cultivars of two other pepper species, Capsicum baccatum and Capsicum chinense, are tolerant or resistant to an array of soilborne pathogens and have potential as rootstocks; however, knowledge of how interspecific grafting may affect scion fruit quality is lacking. Flowering time, yield, and fruit quality characteristics were evaluated in 2017 and 2020 for C. annuum cultivars Dulcitico, Nathalie (2017), Gypsy (2020), and California Wonder used as scions grafted onto Aji Rico (C. baccatum) and Primero Red (C. chinense) rootstocks, including self-grafted and nongrafted scion checks. In 2020, the rootstocks per se were evaluated. The two rootstocks (‘Aji Rico’ and ‘Primero Red’), three scions, and self- and nongrafted scions were evaluated using a factorial, replicated, completely randomized design in fields at the West Madison and Eagle Heights Agricultural Research Stations located in Madison, WI, in 2017 and 2020, respectively. Differences among the main effects for scion fruit quality characteristics were consistent with cultivar descriptions. No scion × rootstock interactions were observed. Rootstocks did not result in changes in total fruit number, yield, fruit shape (length-to-width ratio), or soluble solids of scion fruit compared with self- and nongrafted checks. The rootstock ‘Primero Red’ increased fruit weight and decreased time to flowering regardless of scion compared with self- and nongrafted checks. All scions were sweet (nonpungent) cultivars and both rootstocks were pungent cultivars. No capsaicinoids were detected in the fruit of sweet pepper scions grafted onto pungent pepper rootstocks. The results indicate that interspecific grafts involving ‘Aji Rico’ and ‘Primero Red’ will not have deleterious effects on fruit quality characteristics of sweet pepper scions.

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 Characterization of Tomato Accessions for Morphological, Agronomic, Fruit Quality, and Virus Resistance Traits

2020 ◽  
Author(s):  
Stanislava Grozeva ◽  
Amol N. Nankar ◽  
Daniela Ganeva ◽  
Ivanka Tringovska ◽  
Gancho Pasev ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Fruit Quality ◽  
Virus Resistance ◽  
Fruit Shape ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Tomato Mosaic Virus ◽  
High Yield ◽  
Resistance Traits

Characterization of local germplasm is an effective way to identify elite breeding material and develop improved varieties. This study was aimed to assess 52 tomato accessions comprised of local varieties (28), landraces (8), breeding lines (14), and wild relatives (2) and its characterization for 30 morphological/agronomic, four fruit quality, and Tomato Mosaic Virus (ToMV) resistance traits. Morphological, quality, and ToMV traits were evaluated using phenotyping, biochemical assays, and molecular markers, respectively. Fruit shape and size showed appreciable variation with fruits varied from rounded to heart shape and small to big size. Significant variation was observed for fruit weight (1.6g to 564.8g), fruits per plant (6.0 to 174.7), productivity (130.5g to 5146.5g), soluble solids (4.1% to 8.4%), vitamin C (9.5 mg/100g to 46.4 mg/100g), antioxidant activity (2.5 μmol Fe2+/g FW to 9.6 μmol Fe2+/g FW), and total polyphenols (23.9 GAE/100g FW to 124.2 GAE/100g FW). All accessions were phenotypically screened for the virus resistance in the growth chamber and CAPS molecular markers were used to identify accessions with ToMV Tm-22 resistant alleles and accessions LYC-13, LYC-15, LYC-17, LYC-26, and LYC-52 were identified as resistant. Multivariate analysis of morphological and quality traits showed that 35 principal components (PCs) contributed to the total variation and the first two and twelve PCs explained 47.2% and 90% variation, respectively. The evaluated tomato collection appears to have breeding potential and around 20% accessions of the collection (LYC-6, LYC 17-18, LYC 26-31, LYC 33) are promising genetic resources for variety development that are enriched with enhanced fruit quality and high yield.

scholarly journals Fruit quality of west indian cherry irrigated with saline waters under combinations of nitrogen/potassium fertilization

2020 ◽  
Vol 36 (4) ◽  
Author(s):  
Evandro Manoel Da Silva ◽  
Hans Raj Gheyi ◽  
Reginaldo Gomes Nobre ◽  
Joicy Lima Barbosa ◽  
Bárbara Genilze Figueiredo Lima Santos ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Irrigation Water ◽  
Block Design ◽  
Fruit Size ◽  
West Indian ◽  
Titratable Acidity ◽  
Fruit Shape ◽  
Soluble Solids ◽  
Potassium Fertilization

West Indian cherry stands out among the fruits cultivated for the pharmacological and alimentary importance, but its quality can be affected by irrigation water salinity and fertilization management. In this context, this research aimed to study the effect of irrigation water of different salinities and combinations of nitrogen and potassium fertilization on the physical and physico-chemical quality of bioactive compounds in West Indian cherry fruits. The experiment was carried out in the field, using lysimeters of 60 L, in the Experimental Area of the Centro de Ciências e Tecnologia Agroalimentar (CCTA) of Universidade Federal de Campina Grande (UFCG), Pombal, PB, in a randomized block design, with treatments arranged in a 5 x 4 factorial scheme, referring to five irrigation water salinities (ECw): 0.3, 1.3, 2.3, 3.3 and 4.3 dS m-1 and four combinations (C) of doses of nitrogen (N) and potassium (K2O): C1 = 70% N + 50% K2O; C2 = 100% N + 75% K2O; C3 = 130% N + 100% K2O and C4 = 160% N + 125% K2O, of the recommended dose for West Indian cherry, with three replicates and one plant per plot consisting of a lysimeter. The cv. Flor Branca grafted on cv. Junco was used in the study. The increase in salinity of irrigation water reduced the size, weight and vitamin C content of the fruits, but, the combinations of N and K fertilization did not affect fruit shape and the content of anthocyanin, carotenoids, pH, titratable acidity, total soluble solids and fruit flavor. Fertilization combinations consisting of C1 and C2 treatments promoted the largest fruit size under irrigation with ECw of up to 1.3 dS m-1 and greater mass accumulation. Fertilization doses above C2 combinations negatively affected fruit quality.

scholarly journals Estimating the Genetic Architecture of Fruit Quality Traits in Melon Using a Genomic Library of Near Isogenic Lines

2007 ◽  
Vol 132 (1) ◽  
pp. 80-89 ◽  
Author(s):  
Iban Eduardo ◽  
Pere Arús ◽  
Antonio José Monforte ◽  
Javier Obando ◽  
Juan Pablo Fernández-Trujillo ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Quantitative Trait ◽  
Genomic Library ◽  
Shape Index ◽  
Fruit Shape ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Isogenic Line ◽  
Soluble Solids Content ◽  
Solids Content

A melon (Cucumis melo L.) genomic library of near-isogenic lines derived from the cross between the Spanish cultivar Piel de Sapo and the exotic accession PI 161375 has been evaluated for fruit quality traits in four different locations. Traits evaluated were fruit weight, soluble solids content, maximum fruit diameter, fruit length, fruit shape index, ovary shape index, external color, and flesh color. Among these traits, soluble solids content showed the highest genotype × environment interaction, whereas genotype × environment interactions for fruit shape and fruit weight were low. Heritability was high for all traits except soluble solids content, with the highest value for fruit shape and ovary shape. Ten to 15 quantitative trait loci were detected for soluble solids content, fruit diameter, fruit length, and fruit shape; and four to five for ovary shape, external color, and flesh color. Depending on the trait, between 13% and 40% of the detected quantitative trait alleles from PI 161375 increased the trait, and between 60% and 87% of them decreased it, resulting in some PI 161375 alleles of interest for breeding. Most of the quantitative trait loci detected in previous experiments could be verified with the near-isogenic line population. Future studies with the melon near-isogenic line genomic library will provide a better understanding of the genetic control of melon fruit quality in a wider context related to agronomy, genetics, genomics and metabolomics studies.

scholarly journals A Special Summer Pruning Method Significantly Increases Fruit Weight, Ascorbic Acid, and Dry Matter of Kiwifruit (‘Jinyan’, Actinidia eriantha × A. chinensis)

HortScience ◽  
2020 ◽  
Vol 55 (10) ◽  
pp. 1698-1702
Author(s):  
Guang-Lian Liao ◽  
Xiao-Biao Xu ◽  
Qing Liu ◽  
Min Zhong ◽  
Chun-Hui Huang ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Fruit Quality ◽  
Dry Matter ◽  
Soluble Sugar ◽  
Fruit Size ◽  
Practical Method ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Financial Loss ◽  
Significant Difference

Jinyan (Actinidia eriantha × A. chinensis) is one of the gold-fleshed kiwifruit cultivars currently being promoted in south China. However, its fruit dry matter is usually less than 16%, which seriously affects fruit quality including taste and flavor. This causes a financial loss to growers: not only are the prices paid for the fruit low because of their bad reputation for quality, but some orchards have been removed. Improvement of fruit quality is essential. In this study, a method is described for squeezing and twisting flowering shoots before flowering and removing the distal vegetative parts of flowering shoots after fruit set. The effects on fruit quality were determined. The dry matter of fruit was increased by 6.6%. Fruit size also increased as did the chlorophyll a content and the chlorophyll:carotenoid ratio. The significantly increased fruit dry matter, resulting in significant increases in fruit soluble solids concentrations (P < 0.01), thereby possibly improving fruit taste. Fruit weight, fruit length, and carotenoid and ascorbic acid concentrations were significantly enhanced in comparison with controls (P < 0.01), increasing by 20%, 7%, 12%, and 19%, respectively. However, there was no significant difference in soluble sugar concentrations, titratable acid concentrations, and the reduced chlorophyll b concentrations. This research provides a practical method to increase fruit dry matter, and hence a way to allow fruit quality to reach commercial requirements for cultivars such as Jinyan, which under previous management systems had significant shortcomings in fruit flavor and taste.

scholarly journals Changes in Sugar Accumulation and Related Enzyme Activities of Red Bayberry (Myrica rubra) in Greenhouse Cultivation

Horticulturae ◽  
2021 ◽  
Vol 7 (11) ◽  
pp. 429
Author(s):  
Bo-Ping Wu ◽  
Cong Zhang ◽  
Yong-Bin Gao ◽  
Wei-Wei Zheng ◽  
Kai Xu
Keyword(s):  
Open Field ◽  
Fruit Quality ◽  
Enzyme Activities ◽  
Soluble Sugar ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Field Analysis ◽  
Sugar Accumulation ◽  
Related Enzyme ◽  
Greenhouse Cultivation

The harvest period of bayberry fruit cultivated in the open field is short and often suffers from continuous cloudy and rainy days, leading to a decrease in yield and a decline in fruit quality. However, cultivating bayberries in greenhouses could avoid the harm due to rain, improve fruit quality and prolong the supply period, thus significantly increasing economic returns. Bayberry fruit quality, assessed by single fruit weight, vertical and horizontal diameters, soluble solids content and sugar-acid ratios, was significantly superior in fruit produced under greenhouse conditions than in fruit produced in the open field. Analysis of the soluble sugar components and the related enzyme activities indicated that the sucrose accumulation and metabolism of bayberry fruit were significantly improved by greenhouse cultivation, possibly owing to differences in sucrose-phosphate synthase and acid invertase activities.

scholarly journals Effects of Chelated Iron on Roots under Different Mulching Materials on Fruit Quality of Huangguogan

2020 ◽  
Vol 206 ◽  
pp. 02016
Author(s):  
Zhaofang Chen ◽  
Liting Wen ◽  
Liancong Yang ◽  
Youting Yang ◽  
Liping Tan ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Soluble Sugar ◽  
Fruit Weight ◽  
Soluble Solids ◽  
River Sand ◽  
Black Film ◽  
Titratable Acid ◽  
Acid Ratio ◽  
Chelated Iron

In this experiment, Huangguogan in Shimian County was selected as the experimental material, and the effects of different treatments on the fruit quality of Huangguogan were studied by mulching treatments with black film, straw, horticultural cloth and river sand. The results of this study showed that the application of chelated iron to the roots under different mulching materials could significantly improve the fruit quality, and the application of chelated iron to the roots under different mulching materials had different effects on fruit quality. The river sand mulching treatment had the highest single fruit weight, vertical and horizontal diameters, while CK had the lowest one. The four mulching treatments all increased the contents of total soluble solids, soluble sugar and sucrose. The river sand mulching treatment had the highest contents, which were 13.96%, 13.09 and 6.93 g.100 mL-1, respectively. There were significant differences in the titratable acid, vitamins C and sugar-acid ratio between the different mulching treatments, and the river sand mulching treatment had the highest effect. In general, the river sand mulching treatment had the best effect on promoting fruit quality, and plastic film mulching treatment had the worst effect.

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