Over time, different ways have been used to increase vegetable production per unit area; from the crop systems used (field crops, protected crops and forced crops), to intensive land use (successive, associated, double and intercropping) and to the technologies applied to them. In this paper we aimed to observe some aspects related to the behavior of tomatoes grafted on potatoes.The biological material was represented by: 'Sweet Million F1' cherry tomato hybrid variety, "Carrera" white potatoes, "Memphis" red potatoes, "Blue Star" hybrid purple potatoes. The experimental variants were: tomato control variant, potatoes control variants and tomato variant grafted on red, white and purple potatoes. It was observed that the best grafting was the tomato version grafted on the red potato. The control potato variants had the highest production compared to the grafted ones.The control tomato variant registered the highest number of flowers and formed the most fruits.The three grafted variants had a lower degree of fruit binding compared to the control variant.
Honey is a concentrated aqueous solution of sugars, especially glucose and fructose, and minor amounts of dextrin, enzymes, volatile oils, organic acids, ethers, and minerals. Honey samples vary in quality according to various factors, such as climate diversity, geographical characteristics, floral supply period, and packaging and storage conditions, which can compromise the quality of the hive's final product. The assessment of honey quality is a major concern that has gained interest internationally because honey has always been subjected to various fraudulent practices which become more sophisticated in the present day. Consumers, beekeepers, and regulatory bodies are interested to have reliable analytical tools and information to allow the detection of adulterated honey. The UV-VIS spectroscopy and FTIR spectroscopy techniques are two analytical methods used to analyze the honey quality nowadays, with hydroxymethylfurfural being used as a standard for testing honey's freshness. The present study was conducted to assess the quality of some floral honey samples (rapeseed, acacia, and polyfloral honey) produced in Argeș, Călărași, Giurgiu, and Teleorman counties from the south of Romania. Differences between honey botanical and geographical origins were analyzed and highlighted with One-way ANOVA (p˂0.05), followed by Duncan`s Multiple Range Test. Our results indicated that honey is a valuable source of bioactive compounds.
The livestock sector is an important component of agriculture that involves the breeding of various types of domestic animals. Although animal husbandry is a key activity in global food production, providing food for human society, income, jobs, nutrients, etc. it also has negative consequences, being the second largest polluter after the power industry. An important issue related to the livestock sector is manure produced by animals. The purpose of this paper is to understand the potential of organic manure nutrients as well as the negative effects they can have on the environment. In order to carry out the study, investigations were required regarding the calorific value and the elementary analysis (C, N, H, S, O) for five different types samples of manure from: poultry, sheep, cow, horse and pig. All types of manure have a moisture content of between 40-60% and can be used for composting. With manure we can produce biogas, but is necessary to know the correct way of managing manure in order not to lead to pollution
Air pollution is one of the most dangerous forms of pollution, which can have disastrous effects on the environment. For example, pollution with sulfur oxides contributes to the formation of acid rain and nitrogen oxides promote the accumulation of nitrates in the soil. Meteorological factors, such as temperature, significantly influence the levels of pollution and the spread of pollutants in the lower atmosphere. Air pollution meteorology helps to understand how pollutants are emitted and dispersed in the ambient air. Therefore, the purpose of the paper was to monitor for one year the concentrations of NO2 and SO2 in Argeș County and to correlate these data with climatic and urban parameters. The study concludes with a simulation of the dispersion of pollutants emitted by a source, having dimensions and location similar to those of the evacuation tower from CET Bradu, in conditions of a stable atmosphere at various temperatures.
Blueberry belongs to the Vaccinium Genus, Ericaceae Family, Ericales Order. The highbush blueberry (Vaccinium corymbosum L.) is classified as a commercially-grown berry. Blueberries are appreciated for their taste, nutritional value, and both pharmacological properties and biologically active functions. This study objective was to determine the total sugar content in frozen fruits of the highbush blueberry genotypes used as genitors ('Simultan', 'Delicia', 'Duke', 'Azur', 'Northblue', '4/6', '6/38') and 88 hybrid progenies 'Simultan x Duke', 'Simultan x Northblue', 'Azur x 6/38', 'Azur x 4/6', 'Delicia x Duke', 'Delicia x Northblue'. The total sugar content of frozen fruits was analyzed by the phenol-sulfuric acid method. The results showed that the total sugar content of the genitors varied between 2.83 and 3.81 g glucose/100 g. The fruits of 'Simultan' cv. had the highest total sugar content (3.81 g glucose/100 g). The highest total sugar content, 5.486 g glucose/100 g, was found in a 'Simultan × Duke' hybrids.
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