Salicylic acid belongs to a diverse group of plant phenolics. It is a natural signaling molecule involved in the regulation of different physiological and biochemical processes. The way in which exogemous salicylic acid acts depends on several factors, such as the plant species, the environmental conditions (light, temperature etc.) and the concentration of salicylic acid solutions. Tomatoes (Lycopersicum esculentum) are an important dietary source of micronutrients and antioxidants. The beneficial properties appear to be related to the lycopene and carotene content and the antioxidant content particularly ascorbic acid, polyphenols, total flavonoids, which may play a role in inhibiting reactions mediated by reactive oxygen species. In the present research the influence of exogenously applied salicylic acid on the content of some bioactive compounds was analyzed. Two different concentrations of salicylic acid solution (50 and 100 ppm) were applied on the leaves of two variety of cherry tomato (Idyll and Red Pear). The treatments were applied at 21, 30 and 45 days after the seedlings were planted. The results obtained indicated that 100 ppm concentration of SA was most effective in the foliar treatment in terms of content in bioactive compounds.

The effect of fertilization with organic fertilizers (Siapton and Biohumus) on the growth of Acer platanoides L. saplings was investigated. Four variants were used: Variant V1 - "Siapton" - 1 ml per sapling; variant V2 - "Siapton" 50 ml per sapling; Variant V3 - "Siapton" 50 ml per sapling + 0.5 mg "Kristalon" dissolved in 500 ml of water; Variant V4 - Siapton " 50 ml per sapling + 50% Biohumus and Control (K) - non-fertilized variant. The growth of saplings by root collar diameter (RCD), diameter at breast height (BHD) and height (H) for two years after application of the fertilizers were measured. The best growth results have the saplings where the two organic fertilizers were applied - V4. The application of organic fertilization also improves the soil indicators - the total carbon content (Ct%) was increased, the proportion of "aggressive" fulvic acids was reduced and the ratio: carbon in humic acids / carbon in fulvic acids (Ch / Cf) were enhanced. This gives us reason to recommend organic fertilization in the cultivation of Acer platanoides L. saplings for the needs of forestry and urban planning.

The sludge generation main source of Caras-Severin County are the sewage treatment plants; the amount of sludge generated by the water treatment plants being insignificant. Because the annual amounts of sludge generated is high the processing, storage, recovery of sludge creates specific and complex engineering problems. The elaboration of the sludge strategy considered the quantities and quality, of current sludge, as well as those resulted after the completion of the construction works for the new water treatment and purification plants included in the Water - Water Waste Master Plan. Also, the sludge resulting from the implementation of the Integrated Waste Management System at the county level must be taken into account. The sludge strategy aims to provide on a medium term sustainable solutions for the final recovery / disposal of the sludge generated in accordance with the legal provisions and the national strategy. The paper presents one of the sustainable and viable options for sludge recovery in CarasSeverin County, using them as an artificial soil for re-ecological contaminated sites (33), amounting to 629 hectares: mining waste dumps, tailings ponds and non-compliant deposits.

The accumulation of chill portions started in October and in early January this stage was completed (58CP), the need for cold of the cultivations studied being satisfied. The maximum amount of peroxidase in all cultivars was recorded in February when the temperatures were the lowest (0.41 U / mg at the Siren and 0.15 U / mg at CR2 / 63). Phenolic compounds are more present in the ecodormal phase of late cultivars. High values of soluble proteins were recorded in the coldest months for the determined values varying according to the ripening age of the variety (1.23 mgABS / mg at Comandor and 0.45 mgABS / mg in Rares).

The main way to mitigate the effects of pedological droughts and avoid production losses is to supplement the precipitation and to supplement the soil water reserve by administering of some irrigation norms. The main objective of this paper is to study the connections between the hydrological droughts of small river basins (Fini?ului Valley, Tarcaita Valley and Varatec Valley) from the Beius Depression, Crisul Negru river basin and climate droughts and pedological droughts, respectively. The hydrological droughts was monitored with Streamflow Drought Index (SDI) climate droughts with the Standardized Precipitation Index (SPI) and pedological droughts with the standardized Reconnaissance Drought Index (RDIst), using meteorological records from ?tei Meteorological Station, Bihor County, for 19 hydrological years, the period 1991-2010. The most dry hydrological year, during the 19 years analyzed was, after SPI and RDIst Stei, 1991-1992 (SPI = -1.29 and RDIst = -1.37), characterized as “moderately dry”. The annual hydrological droughts were characterized: on the Finisului Valley “extremely dry” in 1998-1999 (SDI = -2.37); on the Tarcaita Valley, 1996-1997 (SDI = -1.59) and Varatec Valley, 2009-2010 (SDI = -1.91) as “severely dry”. The maximum drought duration is six consecutive months for climate drought, 8 consecutive months for pedological drought (soil drought) and 12 consecutive months for hydrologic droughts, respectively. The hydrological year with climatic and pedological droughts with maximum intensities (1995-1996) presents in the 3 analyzed hydrographic basins: 3 months characterized “near normal” drought on Fini?ului Valley; 3 months “near normal” drought and 1 month “moderate dry” on Tarcaita Valley; 3 months “moderate dry” on Varatec Valley. These occur after climatic and pedological droughts with a delay of 0-3 months. Because the months from warm season (Apr-Sep), with the exception of April, are characterized as humid, from point of view climatic and pedologic, makes it possible to natural restore of the soil water reserve, during the vegetation season of crops.

There is no doubt that drought is considered the second major issue humanity confronts with after of course, pollution. Due to the numerous forms it can occur and the various levels it can create damage scholars have categorized it mainly into agricultural, environmental, hydrological, meteorological and others. This designation was chosen in order to better understand and study the phenomenon`s manifestations. More than a couple of indexes have been proposed by specialists for preventing and measuring it relying mostly on: temperature, rainfall, sun shine and other features. This multitude of indexes made room for a large number of different interpretations which makes the phenomenon even more difficult to study and prevent. The seven indexes the hereby paper uses to calculate indexes are: Palfai drought index, DeMartonne index, N. Topor index, Selianinov hydrothermal index, Lang rain index and Domuta hydroheliothermal index. The case study is conducted for Lugoj for a period of 34 years (1980-2014) in this time impressive amount of data has been collected. The study revealed that the wet and dry periods of time alternate, therefore, there is no threat of aridisation or desertification in the near future.

The surface of Arges’ County forest fund is of 117.212 ha, from which 114.285 ha are covered by forests and 2.927 ha by other fields. The area has a mountain climate in the North part, a hill one in the middle part and a field one in the South part. 51 game funds are present here, amounting to a surface of 641.933 ha. The main game species from this county are: bear, common deer, chamois, roebuck, wild boar, rabbit, marmot, capercaillie, pheasant, badger, fox, marten, ferret, and weasel. 8 species (bear, common deer, wild boar, capercaillie, roebuck, fox and pheasant) were chosen and classified based on 19 criteria with the help of an analytical hierarchy process (AHP) and with the Expert Choice Desktop software package. As such, the most important species resulting from the analytical hierarchy (AHP) are the common deer and the wild boar, and the least important are the capercaillie and the fox.

Selenium is an essential trace element for human health due to its different biological activities. Our aim was to investigate the effects of nano-selenium particles (NSePs) supply on cress sprouts from point of view of total phenols content and antioxidant capacity of selenium – enriched cress sprouts. The NSePs were produced by chemical reduction of NaHSeO3 with glucose. Cress seeds were germinated in the plastic boxes, sprinkled every day with different concentrations of NSePs solution (10, 50, 100 ppm) for 8 days. The length of shoots and roots were measured, and the total phenols content was determined by Folin-Ciocalteu method, while antioxidant capacity was evaluated by DPPH assay. By NSePs supply, the growth parameters of cress sprouts were not affected compared with the control sample. Total phenol content of shoots was not affected by treatment with NSePs at 10 and 100 ppm, but 50 ppm NSePs supply increased the total phenols content compared with the control. The antioxidant capacity of shoots was increased significantly (P=0,05) in the samples treated with 10 and 100 ppm NSePs. Using NSePs as fertilizer, selenium enriched cress sprouts can be obtained, with positive effects on human health.

The scale of human impacts on the natural environment is now considerably larger than at any point in history. The concept of geomorphic sensitivity can help to understand the rate, magnitude and nature of landscape adjustment to perturbation in a given natural system. Aim of this research is to show that geochemical and mineralogical data are important factors in determining landscape sensitivity. To test the suggested premise Neogene lacustrine Kremna basin (Serbia) was selected since sediments found in lacustrine basins are usually prone to dispersion and erosion. Furthermore, lacustrine basins often bear fossil and mineral resources and because of that are often undergoing land use changes. For the purpose of this study, samples of serpentinite, carbonates, marly carbonates, oil shale and tuff were analyzed. Besides mineralogical and petrographic analyses, samples were subjected to the weathering experiments. Obtained results indicate that marly carbonates and tuff are most prone to dispersion primarily due to presence of clay minerals. However, oil shale which also contains clay minerals showed minor leaching characteristics due to high content of organic matter. It can be concluded that mineralogical and geochemical characteristics are important for determining landscape sensitivity to erosion processes of an area.