Plant and Soil Science

One of the limiting factors in the cultivation of vegetables in greenhouses during off-season is light. The lack of solar energy leads to a decrease in yield, a delay in its formation, a decrease in the content of sugars and vitamins, and a deterioration in the commodity qualities of food organs. Given this, the lack of solar lighting must be compensated for by additional artificial lighting, depending on the period of the year, the structures of construction and weather conditions. The purpose of the research was to study the growth and development of seedlings of salad and cabbage under the influence of additional lighting in protected ground conditions. Led lamps with a power of 30 Watts were used as a light source. Phenological observations, biometric measurements were carried out and statistical research methods were used. The positive effect of an additional light source on the formation of young plants has been revealed. It is shown that in the variant with additional lighting, Lettuce salad plantsexceed the control samples for their height, diameter and area of the assimilation surface of the leaves. Additional lightning had a positive effect on the leaf area of white cabbage and the height of Brussels cabbage plant. An increase in the mass of the root and aerial parts was observed in all plants under the use of additional lightning. 

additional lighting, LED lamp, indoor ground, seedlings, lettuce, cabbage, biometric parameters.