<abstract xmlns="http://www.w3.org/1999/xhtml">

Over the past few decades, anthropogenic activities contributed to the depletion of the ozone layer, which increased the levels of solar ultraviolet-B (UV-B) radiation reaching the Earth`s surface. Generally, UV-B is harmful to all living organisms. It damages the cell`s Deoxyribonucleic acid (DNA), proteins, and lipids, and as a consequence, it affects the bio-membranes negatively. In this review, we summarize the major effects of UV-B in the plant`s main molecules and physiological reactions, in addition to the possible defence mechanisms against UV-B including accumulating UV-B absorbing pigments to alleviate the harmful impact of UV-B.
</abstract>

Effects of Ultraviolet-B Radiation in Plant Physiology

<abstract xmlns="http://www.w3.org/1999/xhtml">

The Fergana valley is a region critically important for food safety in Central Asia. The human-altered soils in Fergana are considered a key component of the transboundary region between sub-boreal and sub-tropic climatic zones. As the results of the investigation of irrigated chloride-sulfate saline soils near the surface showed the deep petrocalcic and petrosalic horizons at various depths with extremely low water and air permeability. The chemical, pedogeochemical, and biogeochemical properties of soils, the content of macroelements, trace elements, lanthanides and radionuclides, and the general geochemical characteristics of desert zone soils were investigated and determined. The background contents of the mentioned elements were recognized. The irragic, salic, gleyic, and gypsic horizons in soils were identified by WRB 2015. They can be used as reference horizons for biogeochemical studies and soil management activities. The irragic, gleyic, carbonate-gypsum horizons, evaporation, oxygenic, and other geochemical barriers were studied and revealed. The processes of accumulation, migration, and differentiation of chemical elements in solum as well as in parent materials occur with the joint effects of exogenous, endopedogenic, and artificial factors. These fluxes of elements, in turn, are affected by the nature of soils and parent materials. In this process, unexplored elements form only scattering fluxes. During the vegetation season, as well as the leaching period, considering the various horizons features will help to save significant amounts of irrigation water.
</abstract>

Chemical and Biogeochemical Features of Desert Soils of the Central Fergana

<abstract xmlns="http://www.w3.org/1999/xhtml">

This research was conducted as a combined analysis with four replications in two years (2018 ‒ 2019). Treatments were irrigation up to 90%, 50%, and 20% field capacity (as normal irrigation, moderate and severe water deficit stresses, respectively) and foliar application of natural regulators (untreated as control, salicylic acid, spermidine, and methanol). Increasing water deficit stress was led to a significant increase in essential oil percentage and proline content and a significant decrease in yield parameters and seed yield. Most of the traits (except the percentage of essential oil) were affected by natural growth regulators. The highest seed yield (1,127.59 kg/ha), plant biomass (5,426.92 kg/ha), essential oil yield (22.67 kg/ha), and proline content (29.34 μmol/g fresh weight) were obtained in methanol treated plants under normal irrigation. However, the highest amount of these traits under moderate and severe water deficit was recorded for salicylic acid-treated plants. Therefore, foliar spray of methanol was a useful treatment for non-stress conditions, but, application of salicylic acid was the superior treatment for reducing the negative effects of water deficit stress on <italic>Foeniculum vulgare</italic>.
</abstract>

Improving Resistance of <italic>Foeniculum Vulgare</italic> to Water Deficit Stress by Natural Regulators

<abstract xmlns="http://www.w3.org/1999/xhtml">

Camelina [<italic>Camelina sativa</italic> (L.) Crantz], a recently rediscovered oil crop is becoming of interest to both industry and farmers due to its relatively wide use. The amount of camelina seed production is / will be influenced both by the demand from the industry and by the suitable conditions that allow its profitable cultivation. A preliminary insight on optimal part of the used arable land in Slovakia suitable for growing this crop was based on available information on the environmental requirements of camelina and the system of land evaluation units of agricultural soils. These data have been acquired from database managed and continuously updated by National Agriculture and Food Centre – Soil Science and Conservation Research Institute Bratislava. From this database information concerning the climatic region, slope, soil texture, soil depth, and skeleton content were used. The obtained results show that approximately 27% of the acreage of utilised arable land has optimal quality for spring camelina cultivation in Slovakia. If camelina will be used for the production of various biobased materials, on a smaller scale (several thousand hectares) it is possible to grow this crop without a significant restriction of the cultivation of other crops, especially those intended for food and feed production. In case of camelina utilisation as a feedstock for conventional biofuels production, it is necessary to take into account its competitiveness compared to oilseed rape, which is currently the main raw material for FAME (fatty acid methyl ester) production, both in terms of profitability of cultivation and CO2 emissions per tonne of oilseed yield.
</abstract>

Optimal and Suitable Conditions for Prospective Spring Camelina Cultivation in Slovakia – Screening by the System of Soil Climatic Units

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Agriculture (Pol'nohospodárstvo)

 Why subscribe, read and submit The Agriculture (Poľnohospodárstvo) is a peer-reviewed international journal with open access that publishes mainly original research papers. The types of contributions are also published – review and short communication. Papers are published in British English. The journal has been continuously publishing since 1954. It is published four times a year by the National Agricultural and Food Centre - Research Institute of Plant Production Piešťany, Slovak Republic (www.agriculture.sk; www.nppc.sk; www.vurv.sk). It is indexed in 36 recognized international scientific databases (e.g. SCOPUS).  Our journal is an excellent source of research information on agricultural and biological sciences. It offers fast review, editing process, worldwide dissemination and accessibility of articles. It examines various aspects of research and is devoted to the publication of papers dealing with the aims and scopes related to:   cropland,  farming and cropping systems,  precision agriculture,  agroecosystems,  plant improvement (genetic resources and biodiversity, physiology, genetics, breeding, biotechnology),  permanent crops (growing management and technologies, nutrition, disease and pest protection, weed control, economy of production),  chemistry,  biology, and genetics applied to agronomy,  quality of plant production,  interactions with environment,  grasslands and pasture improvement,  organic farming,  soil quality and management for sustainable agriculture,  irrigation and water use, and other aspects of plant science and production.   Rejection Rate   70%   Back issues Link to previous on-line volumes of Agriculture (Poľnohospodárstvo) (full text from 2006): www.agriculture.sk  Archiving  Sciendo archives the contents of this journal in Portico - digital long-term preservation service of scholarly books, journals and collections.  Plagiarism Policy  The editorial board is participating in a growing community of Similarity Check System's users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process. 

Agriculture (Pol'nohospodárstvo)

Volume 67 (2021): Issue 1 (April 2021)

Effects of Ultraviolet-B Radiation in Plant Physiology

Chemical and Biogeochemical Features of Desert Soils of the Central Fergana

Improving Resistance of Foeniculum Vulgare to Water Deficit Stress by Natural Regulators

Optimal and Suitable Conditions for Prospective Spring Camelina Cultivation in Slovakia – Screening by the System of Soil Climatic Units

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