scholarly journals PHENOLOGICAL STAGES AND FRUIT QUALITY PARAMETERS OF SOUR CHERRY GENOTYPES IN ROMANIAN CONDITIONS

2021 ◽  
Vol 10 (19) ◽  
pp. 341-345
Author(s):  
Margareta Corneanu ◽  
Iulia Mineață ◽  
Elena Iurea ◽  
Iuliana-Elena Golache ◽  
Sorina Sîrbu

The paper presents some aspects regarding the influence of environmental factors in 2020 on the development and fruiting of local and foreign sour cherry cultivars. Phenological stages, fruit quality traits and other chemical parameters were studied. The swelling of the buds started with March 07th (`Țarina`), while the beginning of flowering varied during 11 days, taking place between April 8-19th to April 26th. Fruit`s weight have varied between 3.34 g (`Erdi Ipari`) and 6.28 g (`Erdi Bibor`), but of the stone between 0.20 g (`Erdi Ipari`) and 0.32 g (`Erdi Bibor`). Regarding the equatorial diameter, it varied between 16.98 mm and 22.37 mm for the varieties `Erdi Ipari` and respectively `Erdi Bibor`. The fruit ripening took place between June 3rd and 20th. The values of the soluble dry solids recorded data ranging from 13.84% (`Erdi Korai`) to 17.10% (`Erdi Bibor`). The studied sour cherry cultivars showed variability, but some were remarked through the size of the fruit and the high level of soluble dry substances, or by the degree of adaptability to the soil and climate conditions in Northeastern Romania.

2020 ◽  
Vol 1 (1) ◽  
pp. 75-78
Author(s):  
Margareta Corneanu ◽  
Sorina Sîrbu ◽  
Elena Iurea ◽  
Iulia Mineață ◽  
Iuliana Elena Golache

The paper presents a 2-years study of the valuable characteristics in four foreign apple cultivars grown in northeastern Romania, named Moldavia area. The phenological stages, quality traits of fruits and some chemical parameters were evaluated. Start flowering was determined at April 17th (’Resse’), while end of flowering was identified the period April 27th -28th. Period of flowering was 9 to 12 days as average for studied years 2019-2020. Fruit’s weight have varied between 120.55 g (’Resse’) and 179.46 g (’Remo’), while fruit’s equatorial diameter have varied between 65.82 mm and 74.87 mm at ‘Resse’ and respectively ‘Remo’, but no statistically distinct differences registered between all studied apple cultivars. The values of the soluble dry solids range between 14.65° Brix (‘Resse’) to 17.05° Brix (‘Relinda’), and the total dry solids has recorded values between 17.95% (’Resse’) to 21.39% (‘Remo’). The studied apple cultivars showed variability but some got remarked through large fruit’s size or high level of soluble dry solids.


2019 ◽  
Vol 13 (1) ◽  
Author(s):  
Leonardo Mauricio Ruiz S. ◽  
Diana Carolina Carvajal R. ◽  
José Francisco Garcia M. ◽  
Pedro José Almanza-Merchán

The olive tree has expanded to several countries because of its easy adaptation to difficult edapho-climatic zones and  high culinary and medicinal interest given the physicochemical composition of its fruit, including Argentina, Chile, Peru and Mexico, which have similar soil and climate conditions to the Mediterranean, where the phenological stages correspond to  clearly distinct climatic seasons. However, in the Alto Ricaurte region in Boyaca, Colombia, olives do not set because of the tropical climate conditions. Because of these characteristics, the behavior of some trees, sown 4 to 30 years ago in this region, were evaluated. The temperature and precipitation were measured, and 20 branches were selected per tree, which were monitored from appearance until development; the polar and equatorial diameter of the fruits were measured until reaching maturation. A fruit and oil analysis was carried out with olives harvested in two maturation states in 2017. The temperature had a positive correlation with the phenological stages in a range of 11 to 29°C, which directly influenced the development of inflorescences and their performance. In the same year, there were two or more blooms with different intervals, where the same branch had inflorescences, flowers, freshly filled fruits and other mature fruits. As for the characteristics of the fruit and the oil, it was evident that the content of fatty acids was within the parameters required by the International Olive Council.


2019 ◽  
Vol 3 ◽  
pp. 35-40 ◽  
Author(s):  
Nadya Dzyuba ◽  
Olena Bunyak ◽  
Iryna Bilenka

The recipes of extruded products, namely corn sticks “Kukurudzianka” and “Kukurudzianka+” based on sugar corn grain with the increased content of vitamins and protein were developed. The recipe of extruded grain products was optimized using an inset Excel Solver of a table processor MS Excel (WINDOWS 2010). The developed extrudates may be recommended for consumption by teenagers, children, at dietary nutrition, and consumption by other population layers. Physical-chemical parameters of obtained extrudates were determined, the analysis of such parameters as soaking and digestion ability was conducted. The in vitro studies established that the developed products have a high level of assimilability, reaching almost 85 %. The obtained data of studying quality parameters demonstrated that at storage during 6 months at temperature (15±5) °С humidity 70–75 % in the polypropylene package, the content of sanitary-demonstrative microorganisms corresponds to sanitary-hygienic requirements to dry breakfasts. The developed products have the high content of protein substances that is important in the aspect of consuming need of the modern human’s organism. Consumption of 100 g of sticks provides the human organism with irreplaceable amino acids in general by 24,1 %. The products, presented in the study differ by the high content of main nutrients, necessary for the human organism. The content of calcium satisfies almost 13 % of the daily need, phosphorus – 75 % and potassium – 9 % at consumption of 100 g of corn sticks “Kukurudzianka” and “Kukurudzianka+”.


2018 ◽  
Vol 69 (8) ◽  
pp. 2045-2049
Author(s):  
Catalina Gabriela Gheorghe ◽  
Andreea Bondarev ◽  
Ion Onutu

Monitoring of environmental factors allows the achievement of some important objectives regarding water quality, forecasting, warning and intervention. The aim of this paper is to investigate water quality parameters in some potential pollutant sources from northern, southern and east-southern areas of Romania. Surface water quality data for some selected chemical parameters were collected and analyzed at different points from March to May 2017.


Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 937
Author(s):  
Francisco Javier López-Moreno ◽  
Santiago Atero-Calvo ◽  
Eloy Navarro-León ◽  
Begoña Blasco ◽  
Teresa Soriano ◽  
...  

Green asparagus (Asparagus officinalis L.) is a widely grown and consumed crop which provides high-level nutritional interest. In recent years, the decline syndrome in asparagus plantations has been rapidly augmenting. This syndrome causes the early death of whole plants, also negatively affecting the new replanting. Decline causes notable economic losses in the sector. The objective of this work was to verify the effect of different treatments against asparagus decline syndrome on the physiological parameters and nutritional quality of the spears. To meet the objective, four different treatments were applied to asparagus plots strongly affected by decline syndrome: (T1) untreated control soil, (T2) biofumigation with Brassica pellets, (T3) biofumigation with chicken manure pellets, and (T4) disinfestation of the soil with Dazomet. The cumulative yield and physiological and quality parameters of green asparagus spears were studied. Thus, malondialdehyde (MDA), photosynthetic pigments, glutathione (GSH), ascorbate (AsA), total phenols, flavonoids, anthocyanin, antioxidant test, mineral nutrients, and the amino acid profile were measured on asparagus spears. The results showed that the Brassica pellets and Dazomet treatments were the most effective against the damage caused by the decline syndrome. However, it would be necessary to monitor the evolution in the following years.


Land ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 200
Author(s):  
Felicia Chețan ◽  
Cornel Chețan ◽  
Ileana Bogdan ◽  
Adrian Ioan Pop ◽  
Paula Ioana Moraru ◽  
...  

The regional agroecological conditions, specific to the Transylvanian Plain, are favorable to soybean crops, but microclimate changes related to global warming have imposed the need for agrotechnical adaptive measures in order to maintain the level of soybean yield. In this study, we consider the effect of two soil tillage systems, the seeding rate, as well as the fertilizer dosage and time of application on the yield and quality of soybean crops. A multifactorial experiment was carried out through the A × B × C × D − R: 3 × 2 × 3 × 3 − 2 formula, where A represents the year (a1, 2017; a2, 2018; and a3, 2019); B represents the soil tillage system (b1, conventional tillage with mouldboard plough; b2, reduced tillage with chisel cultivator); C represents the fertilizer variants (c1, unfertilized; c2, one single rate of fertilization: 40 kg ha−1 of nitrogen + 40 kg ha−1 of phosphorus; and c3, two rates of fertilization: 40 kg ha−1 of nitrogen + 40 kg ha−1 of phosphorus (at sowing) + 46 kg ha−1 of nitrogen at V3 stage); D represents the seeding rate (1 = 45 germinating grains (gg) m−2; d2 = 55 gg m−2; and d3 = 65 gg m−2); and R represents the replicates (r1 = the first and r2 = the second). Tillage had no effect, the climate specific of the years and fertilization affected the yield and the quality parameters. Regarding the soybean yield, it reacted favorably to a higher seeding rate (55–65 gg m−2) and two rates of fertilization. The qualitative characteristics of soybeans are affected by the fertilization rates applied to the crop, which influence the protein and fiber content in the soybean grains. Higher values of protein content were recorded with a reduced tillage system, i.e., 38.90 g kg−1 DM in the variant with one single rate of fertilization at a seeding rate of 45 gg per m−2 and 38.72 g kg−1 DM in the variant with two fertilizations at a seeding rate of 65 gg m−2.


Agronomy ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 81
Author(s):  
Dorota Walkowiak-Tomczak ◽  
Natalia Idaszewska ◽  
Grzegorz P. Łysiak ◽  
Krzysztof Bieńczak

The study assessed the changes in the quality and physical and chemical parameters of apples of four cultivars (‘Gala’, ‘Idared’, ‘Topaz’, ‘Red Prince’) subjected to mechanical vibration during transport under model conditions and after storage (shelf-life). Quality changes in apples were evaluated based on skin and flesh colour, total soluble solids, dry matter, firmness, titratable acidity, pH value, total polyphenol content, and antioxidant capacity. The vibration applied at a frequency of 28 Hz caused changes in the above parameters, which were visible also after storage and depended on the cultivar, but often did not show any clear trend or direction or were not statistically significant. The values of the total colour difference factor ΔE showed considerable variations in the skin colour but only small variations in the flesh colour of individual cultivars. Vibration resulted in a decrease in firmness. Variations in dry matter, total soluble solids, pH, and titratable acidity were small, often insignificant. Mechanical vibration and storage led to an increase in the polyphenol content and antioxidant capacity of all studied cultivars. The greatest stability of quality parameters, relatively high content of bioactive compounds, and antioxidant capacity were observed for ‘Red Prince’. The lowest quality parameters were noted for ‘Gala’. The analysed cultivars continued to show a high level of antioxidant capacity after treatment, which allows the conclusion that they remain a good source of bioactive compounds after transport and short-term storage.


2013 ◽  
Vol 68 (10) ◽  
pp. 2164-2170 ◽  
Author(s):  
Nora Sillanpää ◽  
Harri Koivusalo

Despite the crucial role of snow in the hydrological cycle in cold climate conditions, monitoring studies of urban snow quality often lack discussions about the relevance of snow in the catchment-scale runoff management. In this study, measurements of snow quality were conducted at two residential catchments in Espoo, Finland, simultaneously with continuous runoff measurements. The results of the snow quality were used to produce catchment-scale estimates of areal snow mass loads (SML). Based on the results, urbanization reduced areal snow water equivalent but increased pollutant accumulation in snow: SMLs in a medium-density residential catchment were two- to four-fold higher in comparison with a low-density residential catchment. The main sources of pollutants were related to vehicular traffic and road maintenance, but also pet excrement increased concentrations to a high level. Ploughed snow can contain 50% of the areal pollutant mass stored in snow despite its small surface area within a catchment.


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