Устойчивость сортов ржи к спорынье и содержание эргоалкалоидов в склероциях
            <i>
              Claviceps purpurea
            </i>
            в условиях Кировской области

Шешегова, Т. К.; Щеклеина, Л. М.; Желифонова, В. П.; Антипова, Т. В.; Баскунов, Б. П.; Козловский, А. Г.

doi:10.1134/s0026364819030127

Cited by 14 publications

(11 citation statements)

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“…Therefore, after threshing the grain mass with combine harvesters [3,4,5], grain heaps contain poisonous ergot sclerotia in addition to grain, organic and mineral impurities [6,7,8]. Therefore, to obtain grain suitable for food, technical and seed purposes, it is necessary to clean the grain heap, the task of which is to isolate all impurities, especially toxic ergot.…”

Section: Introductionmentioning

confidence: 99%

Influence of the angle of the bath bottom inclination in ergot isolation device on grain immersion in a liquid

2020

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For the mechanization of the allocation of toxic ergot from the rye seeds in a wet way, the urgent issue is the development of a device containing a bath with an aqueous solution of salt. The aim of the study is to determine the influence of the angle of inclination of the bottom of the bath on the rate of immersion of grains in the fluid of the device for separating ergot from rye seeds, which will ensure the efficiency of the process. Theoretically, we consider the movement of individual rye grains along the inclined surface of the bottom of the bath of the ergot extraction device. Rye grains have a density ρz = (1.2...1.5)·103 kg/m3, a length lz = (5.0. 10.0)·10-3 m, a width b = (1.4...3.6)·10-3 m, and a thickness δ = (1.2 3.5)·10-3 m. Geometric models of these grains are presented in the form of cylindrical and spheroidal grains. The movement of grain on the surface of the bottom of the bath of an ergot extraction device is considered at angles of inclination α = 27, 30, 40, 50, 60, 70, 80, and 90 degrees by the methods of mathematical modeling, classical mechanics using the laws of hydrodynamics. It was established that the angle α of the slope of the surface of the bottom of the bathtub to the horizontal should be taken at least 650, at which accumulation is excluded due to the rapid rolling of the grain and a decrease in the thickness of its layer.

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Section: Introductionmentioning

confidence: 99%

Influence of the angle of the bath bottom inclination in ergot isolation device on grain immersion in a liquid

2020

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“…Сила F С гидродинамического сопротивления, действующая на сферическую зерновку при ее погружении в водный раствор протравливателя равна [21]: (6) где c -коэффициент гидродинамического сопротивления водного раствора протравливателя при погружении в нем сферической зерновки, зависящий от геометрической формы зерновки, скорости движения и вязкости жидкости;…”

Section: сравнимunclassified

“…Один из основных способов защиты семенного материала от таких заболеваний, как корневые гнили, септориоз, снежная плесень, головня и склеротиниоз, -протравливание. Одновременно с использованием протравителей широкого спектра действия для обработки семян зерновых рекомендуется применять регуляторы роста и микроэлементы, которые в соответствующих дозах для определенных сельскохозяйственных культур стимулируют развитие растений и повышают их производительность [6,7,8].…”

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Theoretical Justification of the Minimum Drop Height of a Spherical Grain Into the Developer Solution

Sysuev¹,

Saitov²,

Farafonov

et al. 2020

Vestnik of Kazan State Agrarian University

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Food products made of grain are the main source of human nutrition and feed for farm animals. One of the main reserves for increasing its production is sowing with high-quality material, purified from various impurities and pathogens. To protect it from various diseases, etching is used. The most effective way to implement this technological operation is wet pickling with simultaneous release of grain impurities. For implementation of a corresponding device, an estimate was made of the minimum drop height of a weevil which is necessary to overcome the surface tension of a liquid. Pea seeds with a shape close to a sphere were used as objects of research. Therefore, a spherical caryopsis with density ρз = (1.15…1.45)∙103 kg/m3, diameter 2rз = (3.5…10.9) ∙10-3 m was taken as a model of the seed. We investigated the fall of separately taken spherical caryopses with minimum (2rзmin. = 3.5∙10-3 m), average (2rзmid. = 7.2∙10-3 m) and maximum (2rзmax. = 10.9∙10-3 m) linear dimensions having a density ρз = 1.15; 1.25; 1.35 and 1.45∙103 kg/m3, on the surface of an aqueous solution of the dressing agent with a density of ρж = 1.00; 1.03; 1.06; 1.09; 1.12 and 1.15 ∙ 103 kg/m3 with the corresponding coefficients of surface tension σ = 0.0727; 0.0755; 0.0771; 0.0786; 0.0801 and 0.0816 N/m and hydrodynamic resistance coefficients c = 0.4 (0.5 for ρж = 1.12 and 1.15 ∙ 103 kg/m3). The etching process was considered at a temperature of 20°C. The minimum drop height h for overcoming the surface tension of the dressing solution by all caryopses with physical and mechanical parameters with the indicated values should be 15.5 ∙ 10-3 m

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“…Harvesting is carried out by combine harvesters [3,4,5]. After threshing the grain mass with these combines, due to the imperfection of their cleaning mechanism, the grain heap contains grain, organic and mineral impurities, as well as harmful impurities, which include poisonous ergot sclerotia [6,7,8].…”

Section: Introductionmentioning

confidence: 99%

Parameters of the seed output device of the ergot isolation machine

2021

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Grains of rye, wheat, barley and oats are often infected with poisonous ergot fungi. Therefore, it is necessary to clean the grain from harmful impurities. Modern machines do not provide the isolation of ergot sclerotia from grain due to the closeness of their properties in terms of air flow rate and linear dimensions. Cleaning seeds from ergot sclerotia, which have a density lower than the density of the grain, is possible in an aqueous solution of salt. When developing such a machine, research is required to study the residence time of grain in an aqueous salt solution. Grains are considered in the form of a transverse cylinder and an elongated ellipsoid of rotation with numerical values of the parameters: density ρz = 1.2…1.5∙103 kg/m3, length lz = 5.0…10.0∙10-3 m, width b = 1.4…3.6∙10-3 m and thickness δ = 1.2…3.5∙10-3 m. Theoretical studies were carried out on the basis of methods of mathematical modeling, classical mechanics using the laws of hydrodynamics. It was found that when using in the machine for the isolation of toxic ergot sclerotia from the grain of an aqueous solution of salt with a density ρzh = 1000…1150 kg/m3 and a height h1 = 0.35…0.60 m in a bath, the total time ttotal of seeds residence varies within 7.6…18.8 s. During this time, the seeds are moistened superficially, to eliminate which it is enough to blow them under the pressure of atmospheric air.

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Устойчивость сортов ржи к спорынье и содержание эргоалкалоидов в склероциях Claviceps purpurea в условиях Кировской области

Cited by 14 publications

References 0 publications

Influence of the angle of the bath bottom inclination in ergot isolation device on grain immersion in a liquid

Influence of the angle of the bath bottom inclination in ergot isolation device on grain immersion in a liquid

Theoretical Justification of the Minimum Drop Height of a Spherical Grain Into the Developer Solution

Parameters of the seed output device of the ergot isolation machine

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