Oilseed flax and alfalfa as sources of nutrient elements in the Central region of non-chernozem zone of Russia

The article presents the results of research for the year 2022. The objects of the research were oilseed flax and alfalfa. Percentages of crude protein, fiber and ash elements were evaluated in the crops. The content of nutrient elements was estimated by infrared spectrometry. In flax the content of the studied elements in seeds was estimated, in alfalfa the content of nutrient elements in green mass after the second cutting was estimated. Among oilseed flax samples, the highest raw protein yield was provided by Raduga variety (3.40 c/ha), it also provided the highest ash element yield among flax samples (0.92 c/ha), and Nilin variety provided the highest fiber yield (2.24 c/ha). Among alfalfa samples, sample Taisia (152.15 c/ha and 154.44 c/ha, respectively) showed the highest values for raw protein and fiber collection, while sample Agnia (54.90 c/ha) was the leader in ash elements collection

Assessment of the resistance of varieties and collection samples of flax to fusarium wilt

The purpose of the work is to identify samples of flax, resistant to fusarium wilt. The assessment of resistance to fusarium wilting of varieties and samples of flax-long-lived (Linum ussitatissimum L.) from the “Collection of Russian flax” of the Flax Research Institute (NIIL, Torzhok) was carried out. The experiment was conducted for three years from 2019 to 2021. Most of the samples showed average resistance to the disease. The greatest degree of resistance to fusarium wilting (87.5-100%) was shown by the the variety Sursky (86.9%) of the selection of the Flax Research Institute. The lowest resistance to the disease was shown by varieties B-100 (40.4%) and Peresvet (37.1%), their resistance indicators were lower than the susceptibility of the AR-5 standard variety (45.6%), which allows them to be classified as highly susceptible

Estimation and Mode Selection of Deuterium Flux Supply into Ampoule Device through Diffusion Filter in Experiments with Pb-15.7Li Eutectic at the IVG1.M Reactor

In first generation of fusion energy reactors hydrogen isotopes - deuterium and tritium will be used as a fuel. A reserve of tritium in nature does not exist, therefore, for tritium generation the design of fusion reactors involves a special device called breeder blanket, containing lithium

Study of Luminescene in Noble Gases and Their Binary Mixtures Excited by the Products of 6Li(n,α)T Nuclear Reaction

Direct conversion of nuclear particles’ energy into optical radiation opens up new opportunities in obtaining a large amount of light energy, including its most perfect form - coherent light [1-2]. Moreover, optical radiation study of a nuclear-excited plasma produced by products of nuclear reactions is of interest for: development of an alternative method of energy output from a nuclear reactor [3]; creation of devices to control and regulation of nuclear reactors’ parameters, creation one of the diagnostics of high-temperature plasma in fusion reactors [4]. Therefore, spectral studies of nuclear-excited plasma are relevant and are of interest for solving problems, associated with gas media selection with high efficiency of nuclear reaction energy conversion into optical radiation

Input of easily available organic C and N stimulates microbial decomposition of soil organic matter in arctic permafrost soil

Rising temperatures in the Arctic can affect soil organic matter (SOM) decomposition directly and indirectly, by increasing plant primary production and thus the allocation of plant-derived organic compounds into the soil. Such compounds, for example root exudates or decaying fine roots, are easily available for microorganisms, and can alter the decomposition of older SOM ("priming effect"). We here report on a SOM priming experiment in the active layer of a permafrost soil from the central Siberian Arctic, comparing responses of organic topsoil, mineral subsoil, and cryoturbated subsoil material (i.e., poorly decomposed topsoil material subducted into the subsoil by freeze-thaw processes) to additions of 13C-labeled glucose, cellulose, a mixture of amino acids, and protein (added at levels corresponding to approximately 1% of soil organic carbon). SOM decomposition in the topsoil was barely affected by higher availability of organic compounds, whereas SOM decomposition in both subsoil horizons responded strongly. In the mineral subsoil, SOM decomposition increased by a factor of two to three after any substrate addition (glucose, cellulose, amino acids, protein), suggesting that the microbial decomposer community was limited in energy to break down more complex components of SOM. In the cryoturbated horizon, SOM decomposition increased by a factor of two after addition of amino acids or protein, but was not significantly affected by glucose or cellulose, indicating nitrogen rather than energy limitation. Since the stimulation of SOM decomposition in cryoturbated material was not connected to microbial growth or to a change in microbial community composition, the additional nitrogen was likely invested in the production of extracellular enzymes required for SOM decomposition. Our findings provide a first mechanistic understanding of priming in permafrost soils and suggest that an increase in the availability of organic carbon or nitrogen, e.g., by increased plant productivity, can change the decomposition of SOM stored in deeper layers of permafrost soils, with possible repercussions on the global climate.Austrian Science Fund (FWF)/CryoCAR

Oilseed flax and alfalfa as sources of nutrient elements in the Central region of non-chernozem zone of Russia

The article presents the results of research for the year 2022. The objects of the research were oilseed flax and alfalfa. Percentages of crude protein, fiber and ash elements were evaluated in the crops. The content of nutrient elements was estimated by infrared spectrometry. In flax the content of the studied elements in seeds was estimated, in alfalfa the content of nutrient elements in green mass after the second cutting was estimated. Among oilseed flax samples, the highest raw protein yield was provided by Raduga variety (3.40 c/ha), it also provided the highest ash element yield among flax samples (0.92 c/ha), and Nilin variety provided the highest fiber yield (2.24 c/ha). Among alfalfa samples, sample Taisia (152.15 c/ha and 154.44 c/ha, respectively) showed the highest values for raw protein and fiber collection, while sample Agnia (54.90 c/ha) was the leader in ash elements collection

Assessment of the resistance of varieties and collection samples of flax to fusarium wilt

The purpose of the work is to identify samples of flax, resistant to fusarium wilt. The assessment of resistance to fusarium wilting of varieties and samples of flax-long-lived (Linum ussitatissimum L.) from the “Collection of Russian flax” of the Flax Research Institute (NIIL, Torzhok) was carried out. The experiment was conducted for three years from 2019 to 2021. Most of the samples showed average resistance to the disease. The greatest degree of resistance to fusarium wilting (87.5-100%) was shown by the the variety Sursky (86.9%) of the selection of the Flax Research Institute. The lowest resistance to the disease was shown by varieties B-100 (40.4%) and Peresvet (37.1%), their resistance indicators were lower than the susceptibility of the AR-5 standard variety (45.6%), which allows them to be classified as highly susceptible

Oilseed flax as a forage crop

The article presents the results of research for the year 2022. The objects of the research were 6 varieties of oilseed flax. Percentages of raw protein, fiber, ash elements and raw fat were evaluated in the crops. The content of nutrient elements was estimated by infrared spectrometry. In flax the content of the studied elements in seeds was estimated. Among all varieties oilseed flax samples, the highest raw protein yield was provided by VNIIMK 620 PN variety (4.24 c/ha), it also provided the highest ash element yield among flax samples (0.62 c/ha), in addition, this variety is also provided the highest fiber yield (2.65 c/ha). Such high rates in this variety are associated with the highest yield (17.33 c/ha). Because if you look at the percentage of raw fat of all 6 varieties, then Fliz variety was the most oilseed (42.57%), and most proteinous was Svetlyachok variety (25.64%

Estimation and Mode Selection of Deuterium Flux Supply into Ampoule Device through Diffusion Filter in Experiments with Pb-15.7Li Eutectic at the IVG1.M Reactor

In first generation of fusion energy reactors hydrogen isotopes - deuterium and tritium will be used as a fuel. A reserve of tritium in nature does not exist, therefore, for tritium generation the design of fusion reactors involves a special device called breeder blanket, containing lithium

Effects of Fibroblast Transplantation on the Content of Macrophages and the Morphology of Regenerating Ischemic Cutaneous Wounds

Background: The study of the morphological structure and the determination of macrophagal fraction (MF) in the newly formed epidermis and dermis on the 19th day after the transplantation of auto- and heterofibroblasts and a dermal equivalent with heterofibroblasts will allow determining the optimal method for ischemic wound healing. Materials and Methods: The study was performed on 28 white mature mice of the C57/B1 line aged between 5 and 7 months. In an ischemic cutaneous wound, 0.4 ml of fibroblast suspension (1.33 million cells) and a dermal equivalent were transplanted. The biopsy material was embedded in paraffin and stained with H&E by the Weigert-Van Gieson method to visualize the elastic and collagen fibers. Macrophages were determined by monoclonal antibodies to CD68. On the 19th day of the healing of ischemic cutaneous wound, the wound healing process goes through the transition from the stage of proliferation with the granulation tissue formation into the stage of differentiation or fibrosis. The most positive for regenerative histogenesis and inflammation is the introduction of autofibroblasts. The most differentiated epidermis is formed after transplantation into the wound of the dermal equivalent with heterofibroblasts due to the presence of hairpieces in the form of formed hair follicles. The favorable effect of the dermal equivalent with heterofibroblasts differs from the influence of the autofibroblast suspension only by several percent: the thickness of the epidermis by 4.29%, the area of collagen fibers by 2.66%, and the area of the blood vessels by 4.04%. The most positive treatment for regenerative histogenesis and inflammation is the introduction of autofibroblasts. The most differentiated epidermis is formed after transplantation into the wound of the dermal equivalent with heterofibroblasts, due to the presence of pieces hair in the form of formed hair follicles. Conclusion: The favorable effect of the dermal equivalent with heterofibroblasts differs from the influence of the autofibroblast suspension by only several percent: the thickness of the epidermis by 4.29%, the area of collagen fibers by 2.66%, and the area of the blood vessels by 4.04%