Table 1.

The wavelengths and photosynthetic photon flux densities (PPFD’s) of the applied LED spectra.

Treatment	Blue, 447 nm	Red, 638 nm	Red, 665 nm	Far-red, 731 nm	Green, 520 nm	Yellow, 595 nm	Orange, 622 nm
PPFD, µmol m-2 s-1
BR	42	104	150	4
BRG	42	89	150	4	15
BRY	42	89	150	4		15
BRO	42	89	150	4			15