id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-7897	Olle, Margit; Viršile, Akvile	The effects of light-emitting diode lighting on greenhouse plant growth and quality	2013	12	.pdf	application/pdf	7228	366	56	It was offered to enrich red LED light with the spectra of blue fluorescent light (Bula et al. 1991, Yorio et al. 2001, Yorio et al. 2011), how- ever the apparent era of LED researches started, when blue LEDs were introduced to the market. Similar results were obtained, when red LED light was supplemented with blue light form blue fluorescent lamps (Yorio et al. 2001, Yorio et al. 2011).	cache/afs-7897.pdf	txt/afs-7897.txt