scholarly journals Chemical characteristics of nectarine genitors used for breeding program in Romania

2002 ◽  
Vol 8 (2) ◽  
Author(s):  
A. Ivascu
Keyword(s):  
Vitamin C ◽  
Fruit Quality ◽  
Dry Matter ◽  
Geographic Location ◽  
Titratable Acidity ◽  
Matter Content ◽  
Breeding Program ◽  
Chemical Characteristics ◽  
Dry Matter Content ◽  
High Vitamin

The geographic location of Bucharest area, the nature of its soil and its climate offer remarkably favourable conditions for nectarine growing, with juicy and well flavoured fruit, good for fresh consumption and processing. The five years' investigation (1996-2000) has helped to identify some nectarine cultivars and hybrids (NJN 58, ARK 165, ARK 139, Morton, ARK 107, Romamer I, ARK 125, Firebrite) with exceptional fruit quality (dry matter content, titratable acidity, vitamin C content, overall sugar, and amount of pectic substances). Dry matter content varied over the three years from 8.3 to 18.5% (NJN 68), meanwhile titratable acidity varied between 0.26 and 1.08% (Romamer I). Sugar / acidity ratio was within the limits of 8.6 and 36.5 (Nectared 7). Nectarines have high vitamin C content, over 10 mg/100g (Fairlane, NJN 67, Regina, Harko), glucides were found in Firebrite, Romamer I varieties and NJN 21, CIR1T127, HFSR3P4, HNA hybrids. Some cultivars have been recommended for planting in this southern area of Romania (Crimsongold, ARK 125, Harko, Hardyred, ARK 134), others used as quality genitors (ARK 85, Nectared 7, NJN 21, ARK 21, ARK 134, Fantasia) in breeding projects.

scholarly journals The effect of fertilisation with fermented pig slurry on the quantitative and qualitative parameters of tomatoes (Solanum lycopersicum)

2009 ◽  
Vol 4 (No. 3) ◽  
pp. 116-121 ◽  
Author(s):  
L. Kouřimská ◽  
L. Babička ◽  
K. Václavíková ◽  
D. Miholová ◽  
Z. Pacáková ◽  
...  
Keyword(s):  
Vitamin C ◽  
Significant Influence ◽  
Dry Matter ◽  
Titratable Acidity ◽  
Matter Content ◽  
Dry Matter Content ◽  
Pig Slurry ◽  
Suitable Alternative ◽  
Organic Fertiliser ◽  
C 50

The effect of fertilisation with fermented pig slurry on the quantitative and qualitative parameters of two kinds of tomatoes was assessed by means of pot trials. These trials were carried out between the years 2005 and 2008. Each trial involved four treatments, namely (a) control without fertilisation, (b) fertilisation with mineral fertilisers, (c) 50% nutrients in mineral fertilisers and 50% in fermented pig slurry, and (d) fertilisation with fermented pig slurry only. Besides the yield parameters, the following characteristics were monitored: dry matter content, vitamin C content, titratable acidity, nitrogen compounds, nitrates and selected elements (Pb, Cd, As, Zn and Hg) contents. The fertilisation method showed no statistically significant influence on many parameters (titratable acidity, Hg, As, dry matter, vitamin C and nitrates contents). These results showed that anaerobically fermented pig slurry can be a suitable alternative to the use of mineral fertiliser. They also showed that its use as an organic fertiliser did not impair the hygienic quality and safety of the vegetable products grown, as all tomato samples fulfilled the tested heavy metals and nitrates legislation limits. The fertilisation method showed a statistically significant influence on the yield. Diffe-rences occurred between the organic and mineral methods in the case of Cd, and between non-fertilised and organic methods in the case of Zn. The fertilisation method also significantly influenced N-compounds content in tomatoes. A statistically significant influence of the year was found with all parameters except zinc and vitamin C contents. The influence of cultivar was also found, but only in the case of zinc and dry matter contents.

scholarly journals Fruit Quality of Some Hot Peppers Cultivars from Vegetable Research Development Station Buzau

2021 ◽  
Vol 78 (2) ◽  
pp. 13
Author(s):  
Ovidia Loredana AGAPIE ◽  
Costel VÎNĂTORU ◽  
Andreea STAN ◽  
Mihai FRÎNCU ◽  
Elena BARCANU-TUDOR ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Dry Matter ◽  
Titratable Acidity ◽  
Matter Content ◽  
Great Variability ◽  
Soluble Solids ◽  
Dry Matter Content ◽  
Total Soluble Solids ◽  
Significant Difference ◽  
Hot Peppers

The aim of this study was to assess phenotypic diversity in terms of fruit quality traits and yield, and also to establish valuable genotypes for breeding purpose suitable for different direction of use. Ten cultivars of hot peppers bred at VRDS Buzau were collected and fruit quality (dry matter content, fruit firmness, the total soluble solids, titratable acidity and ascorbic acid content) was evaluated at different ripening stages. A very highly significant difference (p<0.01) was found for the studied quantitative parameters, showing a great variability among the studied accessions. During ripening, the dry matter content, the firmness, the TSS content and the titratable acidity increase for all studied cultivars and there were significant differences between them. A broad range of variation was noted in Vitamin C content in both stages of maturity. In the present research work, a great variability among the studied accessions was found. Fully ripe fruits were found considerably richer in the bioactive factor than unripe fruits. Our results have selected two important genotypes: A12A, an accession suitable for obtaining chili powder, due to the his low content in dry matter and total soluble solids and accession A135 suited for fresh consumption and for long shelf life because it has a high firmness.

EFFECT OF TWO GREENHOUSE COVERS ON GROWTH, DRY MATTER CONTENT AND TOMATO FRUIT QUALITY

2005 ◽  
pp. 481-486
Author(s):  
L. Jarquin-Enriquez ◽  
E. Mercado-Silva ◽  
E. Castaño-Tostado
Keyword(s):  
Fruit Quality ◽  
Dry Matter ◽  
Tomato Fruit ◽  
Matter Content ◽  
Dry Matter Content

scholarly journals The effect of nitrogen supply on specific yield and fruit quality of apple (Malus domestica Borkh.)

2005 ◽  
Vol 11 (2) ◽  
Author(s):  
J. Racskó ◽  
J. Nagy ◽  
Z. Soltész ◽  
M. Soltész ◽  
P. T. Nagy ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Dry Matter ◽  
Shape Index ◽  
Matter Content ◽  
Nitrogen Supply ◽  
Specific Yield ◽  
Dry Matter Content ◽  
Canopy Density ◽  
Apple Cultivars

The aim of the present study was to determine the effect of nitrogen supply on yield and fruit quality of apple cultivars and to explore the relationships between canopy density and the different fruit quality parameters. The experiments were carried out at Kálmánháza, in Eastern Hungary in a private orchard in 2003-2004. The response of four apple cultivars ('Elstar', 'Gala Prince', 'Granny Smith', 'Idared') to different nitrogen dosages was studied. The assessed and calculated indices were: yield, fruit diameter, fruit height, shape index, fruit mass, firmness, dry matter content and colouration. The results indicated that nitrogen fertilization has a significant effect on the yield and fruit quality of apple cultivars. The calculated specific yield values were reduced by the application of nitrogen via the increase in the volume of the canopy. An opposit trend was observed for fruit diameter, fruit height and fruit weight, which increased with increasing nitrogen supply. The reduced shape index caused flattening of fruits. However, the improvement of fruit quality via increasing nitrogen dosage is only virtual, since these dosages increase the fruit size, but firmness, dry matter content and colouration are diminished, which decreases the value of the fruits on the market. The authors also studied the relationships between canopy density responsible for assimilation and light supply of the fruits and the different fruit quality parameters. The closest linear inversely proportional relationship was found in the case of colouration. There was a negative linear relationship between canopy density and firmness or dry matter content. The relationship between canopy density and fruit mass could be described by a quadratic polinomial function.

scholarly journals Quality aspects of pepino dulce fruits in distinct ripening stages, packaging forms and storage conditions

2020 ◽  
Vol 23 ◽  
Author(s):  
Neide Botrel ◽  
Raphael Augusto de Castro e Melo
Keyword(s):  
Fruit Quality ◽  
Block Design ◽  
Titratable Acidity ◽  
Storage Conditions ◽  
Matter Content ◽  
Soluble Solids ◽  
Small Scale ◽  
Dry Matter Content ◽  
Ripening Stages ◽  
Quality Aspects

Abstract Pepino dulce (Solanum muricatum Aiton) or Pepino has been growing to produce edible, juicy and attractive fruits. The imported fruits and national small scale of Pepino dulce production are currently stored and commercialized under the absence of postharvest handling recommendations. Therefore, this work aimed to evaluate the quality aspects of Pepino dulce fruits in distinct ripening stages, forms of packaging and conditions of storage. The trial was conducted in a 2x2x2 factorial scheme - 2 ripening stages (ripe and immature) x 2 forms of packaging (with and without wrapping in plastic film) x 2 conditions of storage (room: 25 °C ± 2 ºC and 57% ± 5% of relative humidity (RH); cold: under refrigeration 10 °C ± 2 °C and 85% ± 5% of RH) – in a complete randomized block design. Fruit quality attributes, such as vitamin C, chemical and phenolic content, fruit color (mesocarp), firmness, dry matter content, total titratable acidity (TA), total soluble solids and pH, were evaluated. Fruits showed a centesimal composition with low calories and a significant content of potassium (K), phosphorus (P) and magnesium (Mg), which can contribute to the daily supply of these elements. For commercialization purposes, the association of packaging (plastic wrapping film) and refrigerated storage (cold: 10 °C ± 2 °C and 85% ± 5% of RH) to maintain the characteristics of fruit quality after a 15 days period is more important than its individual use.

scholarly journals The effect of sunburn damage on the fruit quality parameters of apple (Malus domestica cv. Idared)

2005 ◽  
pp. 55-64
Author(s):  
Lejla Budai ◽  
József Racskó ◽  
Zoltán Szabó ◽  
Miklós Soltész ◽  
Ervin Farkas ◽  
...  
Keyword(s):  
Water Content ◽  
Fruit Quality ◽  
Tissue Damage ◽  
Dry Matter ◽  
Quality Parameters ◽  
Apple Fruit ◽  
Matter Content ◽  
Dry Matter Content ◽  
Flesh Firmness ◽  
Epidermal Tissue

In the present study the authors investigated the effect of sunburn injury on fruit quality parameters (cover colour, depth of tissue damage, fruit flesh firmness, dry matter content) of apple.The symptoms of sunburn injury appeared as concentric rings, differing in colour from each other and the cover colour. This can be connected with the ratio of the injury. The authors observed the following colours on the fruit surface (from the epicentre of spots on the surface of the fruit) dark brown (strongly damaged), light brown (moderately damaged), pale red transition (weakly damaged), red surface cover colour (not damaged).Sunburn of apple fruits is a surface injury caused by solar radiation, heat and low relative humidity. In the initial phase, a light corky layer, golden or bronze discolouration and injuries of the epidermal tissue appear on the surface exposed to radiation. Thus, it detracts from the fruit’s appearance, but in most of the cases it would not cause serious damages in the epidermal tissue. The depth of tissue damage is not considerable, its values are between 1.5-2.0 mm in general. It is commonly known, that tissue structure of the apple fruit is not homogeneous. Accordingly, the degree of injury shows some differences under the different parts of the fruit surface.On the basis of the flesh firmness studies, it can be stated that the flesh firmness of the damaged parts increases due to the sunburn effect. This is due to the fact that the damaged plant cells die, the water content of the tissue decreases and it hardens. However, due to this reduction in the water content the dry matter content will increase.

scholarly journals Post Harvest Assessment and Nutritional Evaluation of Different Cultivars of Taro (Colocasia esculenta L. Schott) Grown in the Alluvial Soils of West Bengal, India

2021 ◽  
pp. 1-9
Author(s):  
Manisha Ch. Momin ◽  
Alemmoa R. Jamir ◽  
Surajit Mitra
Keyword(s):  
Ascorbic Acid ◽  
Specific Gravity ◽  
Moisture Content ◽  
Dry Matter ◽  
West Bengal ◽  
Titratable Acidity ◽  
Matter Content ◽  
Reducing Sugar ◽  
Total Sugar ◽  
Dry Matter Content

Aims: The aim of the study was to evaluate the nutritional content of various cultivars of taro acquired from All India Co-ordinated Research Project (AICRP) on tuber crops. Study design:Completely randomized design (CRD) at 5% level of significance. Place and duration of study: Department of Post Harvest Technology, faculty of Horticulture, Bidhan Chandra KrishiViswavidyalaya, West Bengal, India, between December 2019 and February 2020. Methodology: 8 cultivars of taro were evaluated for their nutritional contents in this study and their physical attributes such as cormel girth, length, specific gravity, number of cormels per plant and weight of cormel as well as yield per hectare was calculated. Chemical attributes such as titratable acidity, starch, ascorbic acid, total phenol and total sugar as well as reducing sugar content in each cultivar was also studied. Results: Analysis of variance showed significant variation among all the tested cultivars. Moisture content, total sugar and starch was recorded to be highest in the cultivar TTR-17-6 (72.233 %, 5.007 % and 31.805 % respectively). Total phenol (188 mg GAE 100 gm-1) and reducing sugar (2.817%) was found to be highest in TTR-17-5. Total soluble solids was highest in TTR-17-7 (3.867 0Brix). Dry matter content was highest in TTR-17-4 (37.333 %) and ascorbic acid was highest in TTR-17-2 (70.093 mg 100 gm-1). Conclusion: The eight cultivars of taro studied were found to be rich in sugars, ascorbic acid, total phenols and starch. They were observed to vary in cormel girth, length, weight, specific gravity, yield, moisture, dry matter content, TSS and titratable acidity. The cultivar TTR-17-6 was found to be very high in starch, total sugar and moisture content. Therefore, this cultivar may be of considerable importance in ameliorating malnutrition in poorly resourced areas of the developing countries. Cultivar TTR-17-2 was found to be high in ascorbic acid and hence can be further used by the plant breeders to develop more cultivars of taro that are rich in such phytochemicals.

scholarly journals Morphological and chemical characterization of fruits of Capsicum spp. accessions

2011 ◽  
Vol 29 (3) ◽  
pp. 364-371 ◽  
Author(s):  
Elizanilda R do Rêgo ◽  
Mailson M do Rêgo ◽  
Izadora Wally F de Matos ◽  
Lidiany Aparecida Barbosa
Keyword(s):  
Dry Matter ◽  
Chemical Characterization ◽  
Matter Content ◽  
Breeding Program ◽  
Soluble Solids ◽  
Dry Matter Content ◽  
Capsicum Frutescens ◽  
Fresh Market ◽  
Capsicum Spp

This study aimed to evaluate 69 Capsicum accessions from the Germplasm Bank of Universidade Federal de Roraima, for some fruit quality traits. The experiment was performed in a completely random design, with 69 treatments and 3 replications. The 69 accessions were evaluated for fourteen quantitative and two qualitative traits of ripe fruits. Quantitative fruits data were subjected to an analysis of variance, and the means were grouped by Scott-Knott test (p<0.01). All characteristics had significant effect of treatments (p<0.01) for all evaluated traits. The data showed high genetic variability to future use in a Capsicum breeding program. The accessions 33, 44 and 41 showed major values for dry matter content and total soluble solids; these should be used to improve these traits in a paprika breeding program. On the other hand, the accession 48 showed major values for fresh weight, major fruit length and fruit width. The accession 33, belonging to the Capsicum frutescens species, with high vitamin C content should be used in a fresh market Capsicum breeding program.

scholarly journals Relationship between skin color and some fruit quality characteristics of 'Hass' avocado.

1969 ◽  
Vol 95 (1-2) ◽  
pp. 15-23
Author(s):  
Jorge A. Osuna-García ◽  
Gilles Doyon ◽  
Samuel Salazar-García ◽  
Ricardo Goenaga ◽  
Isidro J. L. González-Durán
Keyword(s):  
Fruit Quality ◽  
Skin Color ◽  
Dry Matter ◽  
The United States ◽  
Quality Characteristics ◽  
Matter Content ◽  
Dry Matter Content ◽  
The European Union ◽  
Avocado Fruit ◽  
Hass Avocado

Mexico is the main 'Hass' avocado exporter in the world. More than 300,0001 are exported every year. The United States of America, Japan, the European Union, and Canada are the main importer countries. Recently, 'Hass'avocado shipments to Canada containing fruit with skin blackening have been rejected since this characteristic is associated with low pulp firmness and short shelf life. The objective of this study was to determine the relationship between skin color of 'Hass' avocado fruit with quality characteristics. Fruit varying in black skin color (from 0 to 100%, categories 1 to 5) were collected from two different packinghouses in Michoacán, Mexico. Treatments were arranged in a split-plot design with five replications. Significant differences were detected between packinghouses for weight, length, skin color ('a', ‘b’, chroma and hue) and pulp firmness but not for width, dry matter content or the Avocado Maturity Index (AMI). As color skin category increased towards more blackened fruit, AMI value increased, firmness decreased but dry matter content did not change. These results provide evidence that fruit skin blackening is not associated with lower fruit quality, but it did lower pulp firmness at fruit packing.

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