The influence of radiation parameters on the productivity and qualitative characteristics of salad of Krilda and Auvona varieties

To obtain high-quality vegetable products in technological process of vegetable growing of protected soil, LED irradia- tion devices are used, the effectiveness of which is beyond doubt. It is established that to control the production process it is necessary to form a spectrum of phyto-emitters in a certain way, using different ratio of light-emitting diodes of blue and red wavelength ranges, as well as full spectrum of radiation. The aim of the study was to develop an effective irradiation technology for a salad culture based on LED phyto-emitters. Two irradiators were used in the experiment, one of which had radiation ratio in separate regions of photosynthetically active radiation: blue (b) - 24 %, white (w) - 27, red (r) - 49 %; another: b - 17 %, w - 17, r - 66 %. The average irra- diance was 150 μmol/m2s. As an experimental culture, two varieties of salad were used: "Krylda" and "Auvona." The yield, as well as the accumulation of macro- and microele- ments, were determined...