Parameters of rational influence of monochromatic radiation on the sowing qualities of cucumber seeds

Introduction. The intensive development of vegetable growing is directly related to the availability of healthy seed material, which makes it possible to plan for obtaining a high-quality harvest in the quantity required by the consumer. To realize the possibility of unlocking the full biological potential of cultivated crops, a variety of stimulants are used today, among which are electrophysical methods and methods for activating the internal reserves of seeds before sowing them in the ground. Such impacts, environmentally safe and technologically effective, include pre-sowing stimulation of seed material of vegetable crops with monochromatic radiation using LEDs.
Object. The object of research is cucumber seeds of the “Phoenix+” variety with a long shelf life (4 years).
Materials and methods. The studies were carried out on cucumber seeds of the Phoenix+ variety with a long shelf life, which were treated with monochromatic light in the yellow-orange spectral range with a wavelength of λ = 590 nm and a duration of 60 to 300 seconds. To conduct the experiments, a research setup was assembled, and the detection of germination energy and seed germination was assessed using standard methods described in the relevant GOST.
Results and conclusions. Treatment of cucumber seeds of the Phoenix+ variety with monochromatic yellow-orange radiation with a wavelength of 590 nm revealed the following indicators of the development of seeds, sprouts and roots of seedlings: with an irradiation duration of 180 seconds, the highest increase in germination energy is achieved – 13% over control samples, and with using seed resting, this value is 11%; seed germination without resting was 10% at the same irradiation time of 180 seconds, and with resting – 6%, relative to the control; estimating the length of the roots, it was possible to obtain an increase of 4.3 cm over the control samples, when irradiating the seeds for 180 seconds, at the same time carrying out resting, the results with irradiation for 120 and 180 seconds repeated the results of control observations, and at longer exposures they did not achieve and them; When controlling the length of the sprouts, both options gave a positive result – its increase was observed by 2.8 cm without resting and by 3.3 cm with resting, and the best processing time was 300 and 240 seconds, respectively.

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