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2023, № 2 (56) |
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ELECTRICAL TECHNOLOGIES, ELECTRICAL EQUIPMENT AND POWER SUPPLY OF THE AGRO-INDUSTRIAL COMPLEX
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Taranov M.A., Protasova N.A., Stepanchuk G.V., Gulyaev P.V., Voropay M.A. |
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Preliminary study of the effect of optical irradiation on the quality of seedlings of tomato varieties "Malva" |
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The article presents the technologies of optical irradiation of seeds with visible radiation in recent years. These technologies are popular due to the fact that plants for pre-sowing seed irradiation are versatile and easy to operate, do not require large amounts of electricity, and the sources have a long shelf life. Each vegetable crop has its own photosensitivity, so it is necessary to select the irradiation parameters for the crop separately. The experiment was carried out in the greenhouse "Ivanov A.P." in order to identify rational parameters of pre-sowing treatment of tomato seeds for the quality of seedlings. On an improvised installation, seeds were treated for 60 and 120 seconds, with an estimated radiation dose of 69.26 J/cm² and 138.53 J/cm², respectively. After the seedlings dived, in the phase of the 5th true leaf, the length of the sprout was measured, measurements of the dry and wet weight of the plant were obtained, the number of leaves was counted, their area and dry matter were calculated. The calculation of dry matter showed that in the irradiation variant with an exposure of 60 seconds, tomato seedlings were denser and retained their marketable appearance longer, in contrast to the control variant. And with an increase in the dose of radiation by 2 times, the indicators of dry matter were lower than the control. In general, the seedlings of irradiated seeds are compact and dense, have more leaves than the seedlings of the control variant, which were quite tall and had thin stems. The coefficient of variation showed that the seedlings, the seeds of which were irradiated, were practically the same in height, and in the control experiment, a scatter in length was observed.
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