The influence of different lighting sources on growth and development of tomato plants

摘要

Comparative study was conducted on morphofunctional parameters of tomato plants(Solatium lycopersicum L.)under diverse supplementary lighting conditions-electrodeless lamps(EL),high-pressure mercury arc lamps(HPM)and high-pressure sodium arc lamps(HPS).The work showed,that plants,cultivated under 5,000 lux EL lighting,had higher morphometric parameters,their leaves contained more chlorophyll,and they were outgrown,in comparison to plants,growth in HP S and HPM lighting conditions.These results demonstrate the profitableness of EL light flux,which contains constant PAR spectrum,for tomato plants growth and development.