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 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

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%

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

Magnetically Recovered Co and Co@Pt Catalysts Prepared by Galvanic Replacement on Aluminum Powder for Hydrolysis of Sodium Borohydride

Magnetically recovered Co and Co@Pt catalysts for H2 generation during NaBH4 hydrolysis were successfully synthesized by optimizing the conditions of galvanic replacement method. Commercial aluminum particles with an average size of 80 µm were used as a template for the synthesis of hollow shells of metallic cobalt. Prepared Co0 was also subjected to galvanic replacement reaction to deposit a Pt layer. X-ray diffraction analysis, X-ray photoelectron spectroscopy, scanning electron microscopy, and elemental analysis were used to investigate catalysts at each stage of their synthesis and after catalytic tests. It was established that Co0 hollow microshells show a high hydrogen-generation rate of 1560 mL·min−1·gcat−1 at 40 °C, comparable to that of many magnetic cobalt nanocatalysts. The modification of their surface by platinum (up to 19 at% Pt) linearly increases the catalytic activity up to 5.2 times. The catalysts prepared by the galvanic replacement method are highly stable during cycling. Thus, after recycling and washing off the resulting borate layer, the Co@Pt catalyst with a minimum Pt loading (0.2 at%) exhibits an increase in activity of 34% compared to the initial value. The study shows the activation of the catalyst in the reaction medium with the formation of cobalt–boron-containing active phases