scholarly journals Stability of showing of biochemical traits of courgette fruits under different conditions of growing linear material

2020 ◽  
Vol 11 (3) ◽  
pp. 70-79
Author(s):  
S. I. Kondratenko ◽  
◽  
T. V. Shevchenko ◽  
O. V. Sergienko ◽  
O. P. Samovol ◽  
...  

In connection with the development of organic vegetable growing in Ukraine, the topical issue of courgette breeding is the creation of varieties and hybrids of F1 with maximum adaptability to soil and climatic conditions of cultivation. The purpose of research is to identify genetic sources for the breeding of courgette with a stable manifestation of biochemical characteristics of the fruit. Breeding work was carried out with 20 lines of courgette of different geographical origin. Evaluation of linear genotypes was performed on the following indicators – general (GACi) and specific adaptive capacity (SACi), relative stability (Sgi), coefficient of ecological plasticity (bi) and selection value (BVGi). Courgette lines with a high content of dry matter, total sugar and vitamin C in fruits in the phase of technical ripeness have been created. Among them, 2 highly adaptive lines, which simultaneously exceeded the standard variety Chaklun in terms of dry matter content (4.46… 4.71%) and total sugar (2.77… 2.84%). Highly adaptive lines, better than the standard grade for the manifestation of one feature - the dry matter content – 1 line (4.58%), total sugar – 3 lines (2.72… 2.77%), vitamin C – 2 lines 14.93… 15.55 mg / 100 g). Low dependence on growing conditions at the same time on the manifestation of 2 traits (dry matter content and vitamin C in the fruit) was demonstrated by 3 lines (-1 Less than bi Greater than 1). The obtained lines are a valuable source material for the creation of varieties and hybrids of courgette F1, suitable for organic cultivation technologies with high quality fruits in the phase of technical maturity.

2019 ◽  
pp. 31-33
Author(s):  
S. V. Malueva ◽  
E. A. Varivoda ◽  
I. N. Bocherova

The main direction of breeding in melon farming is the creation of varieties with high potential for productivity. The research was conducted at the Bykovskaya experimental station in the Volgograd region. The aim of the research was to create a new competitive watermelon variety malachite, which has a complex of useful and economic characteristics, resistant to biotic and abiotic environmental factors. The characteristic of the initial forms used for hybridization is given. The data of evaluation of the hybrid combination in all stages of the breeding process. According to the results of the 3-year competitive variety testing, the excess of the yield of watermelon malachite over the Sinchevsky standard averaged 1.5 t/ha. The dry matter content for all years of research was at the level of the standard and ranged from 11.4 to 12.4%. The final result of breeding work is the creation of mediumgrade watermelon malachite, which is in the state variety testing.


Author(s):  
Manisha Ch. Momin ◽  
Alemmoa R. Jamir ◽  
Surajit Mitra

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.


2009 ◽  
Vol 4 (No. 3) ◽  
pp. 116-121 ◽  
Author(s):  
L. Kouřimská ◽  
L. Babička ◽  
K. Václavíková ◽  
D. Miholová ◽  
Z. Pacáková ◽  
...  

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.


2018 ◽  
pp. 135-139
Author(s):  
Tímea Rubóczki ◽  
Mária Takácsné Hájos

The importance of beetroot lies in the numerous health benefits, attributed to its wide-ranging array of minerals, vitamins and bioactive compounds which play a key role in the human diet. Generally, beetroot is consumed for its root, however, its leaves also contain a good amount of bioactive compounds. The experiment was carried out with four beetroot varieties in order to compare the amount of bioactive compounds in the root and the leaf. The analyzed data were total dry matter content, total polyphenol, flavonoid and vitamin C. Results have shown that roots contain the highest amount of bioactive compounds. Nevertheless, leaves can be also considered a significant source. Therefore, consumption of the young leaves is highly recommended due to their availability after thinning or at maturity stage (60 days after the germination). Of the examined varieties, ‘Libero’ demonstrated the highest total polyphenol, flavonoid and vitamin C values, although it was found to be statistically insignificant.


2020 ◽  
pp. 9-12
Author(s):  
S. Bomok ◽  
B. Taktaiev ◽  
M. Pikovskyi ◽  
O. Marieva

Goal. To establish biochemical changes (contents of dry matter, vitamin C, starch and carotene) in potato tubers in different degree affected by fungal diseases. Methods. Potato tubers (variety Bella Rosa) was selected in the conditions of private sector, Brusilovsky district, Zhytomyr region. Diagnosed disease by the visual method and a microscopic analysis with the subsequent identification of the pathogens. Biochemical analysis of potato tubers on dry matter content, vitamin C, starch, and carotene were performed according to standard techniques of the Institute of potato NAAS. The results of the research. The result of phytopathological examination of potato tubers during storage revealed fungal diseases: rot, Fusarium dry, Pomona, white, grey and verticillata; scab — plain and black or black scurf. Is established, that biochemical parameters in potatoes with different degree of damage differed. The amount of solids in healthy potato tubers were 21.0% in severely infected by Fusarium 14.5%, and famosa 13.9% and the usual scab — 18.2%; the blight of 15.6%. Starch in healthy tubers was 15.4% strongly struck by Fusarium is 7.5%, famosa — 6.9%, the usual scab — 11.2%, a Rhizoctonia — 9.8%. The content of vitamin C in healthy tubers was 0.17 percent, and in severe cases, Fusarium and 0.12%, famosa — 0.12%, ordinary scab and 0.12%, a Rhizoctonia — 0.12%. Biochemical indicators of carotene in healthy tubers was 0.18%, and in severely infected by Fusarium was reduced to 0.09%, famosa up to 0.06%, the usual scab — up to 0.11%, a Rhizoctonia — up to 0.10%. Conclusions. In potato tubers with different degrees of lesions of fungal diseases of reduced the content of dry matter, starch, vitamin C and carotene, which worsens their quality.


HortScience ◽  
2020 ◽  
Vol 55 (1) ◽  
pp. 35-39
Author(s):  
Ayse Coban ◽  
Yelderem Akhoundnejad ◽  
Sultan Dere ◽  
H. Yildiz Dasgan

In the present study, salt-tolerant (Tom 174) and sensitive (Tom 121) tomato genotypes were grafted onto their own roots (174/174 and 121/121), and a susceptible genotype was also grafted onto tolerant genotype 121/174. The grafted plants were grown under 50 mm NaCl and control conditions in a greenhouse. Plant physiological parameters, fruit yield, and physical measurements of fruit (e.g., weight, height, diameter, volume), and chemical analysis of fruit (e.g., vitamin C, pH, and total dry matter content) were investigated. When the sensitive genotype was grafted onto tolerant genotype 121/174, the tolerant genotype Tom 174 reduced the yield loss of susceptible genotype from 44% to 3%. Also, fruit size, total dry matter content, and vitamin C increased, while pH decreased under saline conditions. The rootstock Tom 174 seemed to be able to control sensitive scions’ stomatal openness and closure for transpiration and CO2 transition on photosynthesis because dry matter content was increased. It was found that the tolerant genotype played a role in ameliorating leaf osmotic adjustment of the sensitive genotype in grafting under salt stress. The combination 121/174 had the lowest Na+ concentration in young leaves. Thus, the tolerant rootstock Tom 174 decreased the transport of accumulation of Na+ ions to young leaves in this grafting combination.


2012 ◽  
Vol 61 (2) ◽  
pp. 85-91
Author(s):  
Renata Wojciechowska ◽  
Tadeusz Kobyłko ◽  
Anna Hostyńska

The study concerned an evergreen herbal plant <i>Waldsteinia trifolia</i> Roch. This species can be found more and more often in garden plantings in Poland. The aim of the study was to estimate the content of photosynthetic pigments, anthocyanins and dry matter as well as the permeability of cytoplasmatic membranes of <i>Waldsteinia</i> leaves. Plants grew in an ornamental plant collection at the premises of the Faculty of Horticulture of the Agricultural University in Kraków. The study was conducted in 2006 and 2007 in the following months: March, May, June, September, October and November. The permeability of cytoplasmatic membranes was estimated based on electrolyte leakage from leaf discs at 20°C in relation to total electrolytes in the tissue after unfreezing. The first days with temperature drops down to around 0°C in autumn resulted in a decrease in chlorophyll a, b and carotenoid content, but significantly increased anthocyanin content. The ratio of chlorophyll a to b and the ratio of total chlorophylls to carotenoids did not change in particular months. In both years of study, similar changes in dry matter content of the <i>Waldsteinia</i> leaves were observed. Dry matter content significantly increased in June and November and decreased in May and October. In June and in autumn, after first slight frosts, an increase of electrolyte leakage from the leaf discs was observed. However, high dry matter content (40.3%) was accompanied by lower permeability of the cytoplasmatic membranes of the leaves after winter during March. These results have shown good adaptation of <i>Waldsteinia trifolia</i> plants to the climatic conditions in Poland.


2021 ◽  
Vol 14 (3(53)) ◽  
pp. 19-31
Author(s):  
Alena Mikhailovna Marhunova ◽  
Tatsiana Viacheslavovna Shugaeva ◽  
Ksеnia Nikolaevna Gershonchik

The article substantiates the relevance of the development of confectionery products with a reduced content of easily digestible carbohydrates and content of calories’, including those suitable for diabetic nutrition. A comparative analysis of the technological and physiological properties of sweeteners (polyols) was carried out and showed the prospects of using sorbitol, xylitol, maltitol and maltitol syrup for the manufacture of musli-bars without added sugar, including those suitable for diabetic nutrition. The processes of heat treatment of syrups with sweeteners are studied, regression equations are selected that allow determining the dry matter content in the syrup at a certain temperature or setting the temperature to which it is necessary to boil the syrup to achieve the required dry matter content. The influence of sweeteners on the dynamic viscosity of syrups and the strength of bars is studied. The determination of the mass fraction of total sugar (in terms as sucrose) was carried out, according to the results of which the developed products were classified as specialized products of diabetic nutrition. The complex analysis allowed to determine the optimal sweetener and, based on the results obtained, developed recipes for musli-bars without added sugar: «Cereals with raspberries», «Cereals with hazelnuts», «Cereals with blueberries».


2011 ◽  
Vol 30 (No. 3) ◽  
pp. 81-89 ◽  
Author(s):  
J. Blažek ◽  
I. Hlušičková ◽  
A. Varga

&nbsp;In this four-year study, fruits of Golden Delicious cv. randomly sampled from four different orchards on M 9 were kept at 1 or 2<sup>o</sup>C in air storage, and in the course of storing individually assessed for weight, skin colour, skin blush, skin waxiness, flesh firmness, vitamin C content, total acid content, pH value, total sugars, dry matter and calcium content. Changes in some of these fruit quality characteristics during storage are presented and compared with their course during storage both in the cellar and ULO. The maximum storage life of the fruits in the air storage was estimated at 150 days on average. From individual fruit data, correlations between all the observed characteristics at different stages of the storage period were calculated. Fruit weight was positively correlated with dry matter, vitamin C, sugar and acid content, but negatively correlated with flesh firmness and calcium content. Fruits with more skin blush were correlated with higher vitamin C. Flesh firmness was mostly correlated with dry matter content, but negatively correlated with calcium content and pH values. Vitamin C content was positively correlated with total acids, but negatively correlated with pH values, sugar:acid ratio and calcium content. Total acids were negatively correlated with pH values and sugar:acid ratio. At the end of the storage period, the total acid content was also correlated with dry matter content. Total sugars were closely correlated with dry matter content and negatively correlated with calcium content.&nbsp; Calcium content was very closely negatively correlated with dry matter content, and also negatively correlated with the sugar:acid ratio. &nbsp; &nbsp; &nbsp;


2016 ◽  
Vol 12 (2) ◽  
pp. 251-260 ◽  
Author(s):  
SI Kamol ◽  
J Howlader ◽  
GC Sutra Dhar ◽  
M Aklimuzzaman

A study was undertaken to evaluate the effects of different maturity stages and postharvest treatments on the storage behavior of Pineapple fruits. Two distinct maturity stages viz., premature (30 days before attaining optimum maturity) and optimum mature fruits were harvested and placed in the laboratory room. On the same day six postharvest treatments viz., control, preserved in unperforated polyethylene bag, tilt, 100 ppm NAA, 200 ppm NAA, and 300 ppm NAA were assigned to that fruits. The two-factor experiment was laid out in a completely randomized design with three replications. There was significant variation between two maturity stages and among different treatments in relation to fruit characteristics. At 18 days of storage, premature fruits contained the maximum shelf-life (19.33 days), total weight loss (16.00%), moisture content (92.66%), total titratable acidity (0.77%), ascorbic acid content (17.49 mg/100g fruit) while the minimum (14.5 days), (14.67%), (90.66%), (0.68%), (9.75 mg/100g fruit) in optimum mature fruits, respectively. On the other hand, optimum mature fruits had higher dry matter content (14.78%), edible portion (67.77%), TSS (16.03%), pulp to peel ratio (2.56), total sugar content (13.5%) while these were minimum (12.57%), (65.16%), (14.43%), (2.37), (10.56%) in pre mature fruits, respectively. The fruits treated with 100 ppm NAA treatment showed the highest shelf life (22.83 days), pulp to peel ratio (2.94), total titratable acidity (0.67%), ascorbic acid content (16.78 mg/100g fruit pulp) and the lowest was in total sugar content (10.96%). Fruits treated with unperforated polythene bag gave the maximum edible portion (71.72%), moisture content (88.3%), and the minimum were in weight loss (3.42%), dry matter content (11.7%), TSS (14.68%). On the other hand, fruits with 5% tilt treatment showed the minimum total titratable acidity (0.58%) and ascorbic acid content (12.28 mg/100 g fruit pulp). Fruits with control represented the highest weight loss (19.135%), dry matter content (13.7%), total sugar content (12.75%) and the lowest were in shelf life (12.66 days), edible portion (60.098%), pulp to peel ratio (1.93). Among the treated and untreated fruits, unperforated polyethylene bag and 100 ppm NAA treatment exhibited better storage performance.J. Bangladesh Agril. Univ. 12(2): 251-260, December 2014


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