Tomato is a globally strategic crop and consumers need it throughout the year. To have a healthy and productive tomato plant, a high-quality seedling is a necessity. Toward this end, the current research was to improve a system for producing tomato seedlings in plant factories using light-emitting diodes (LEDs).
The results indicated that tomato seedlings of both cultivars under (Red 70% + Blue 30%) showed the greatest plant height and the largest total leaf area. The best treatment for the accumulation of soluble protein and soluble sugar contents for Gangmu No.1 and Millennium cultivars were (Red 50%+Green 20%+ Blue 30%) and Red 100%, respectively. The Non-Photochemical Quenching under (Red 50%+Green 20%+ Blue 30%) treatment was the lowest for Gangmu No.1, while it was the lowest under white fluorescent light for Millennium. The electron transport rate under white fluorescent light treatment was the highest for Gangmu No.1, while it was the highest under (Red 70% + Blue 30%) for Millennium.
The results indicated that the mixture of red and blue at (Red 70% + Blue 30%) was beneficial for the growth of tomato seedlings for both cultivars, which could be efficiently used in plant factories and provide some data for different LED light ratios applicable in a closed system to demonstrate how to get the best lighting conditions for tomato seedlings.
Read the complete research at www.researchgate.net.
Yousef, Ahmed & Xu, Yong & Chen, Faxing & Lin, Kui & Zhang, Xiwen & Guiamba, Hellio & Ibrahim, Muhammed & Rizwan, Hafiz & Ali, Muhammad. (2021). The influence of LEDs light quality on the growth pigments biochemical and chlorophyll fluorescence characteristics of tomato seedlings (Solanum lycopersicum L.). Fresenius Environmental Bulletin. 30. 3575-3588.