Effect of different LED-lighting quality conditions oncstyleCrocus sativus L.)

The effects of different light-emitting diode (LED) lights on saffron growth and photosynthetic characteristic were explored. Physiological mechanisms explained by chlorophyll a fluorescence transient curves (OJIP) JIP-test parameters. A decrease in the red to blue light ratio resulted negative effects, particularly for monochromatic (B) LED light; seedlings showed reduced accumulation, inhibited leaf elongation, decreased performance. In OJIP curve, higher positive K-band observed B indicated that oxygen-evolving complex activation significantly decreased. electron transport between primary quinone acceptor secondary as well existence reducing plastoquinone centers, increased energy dissipation reaction centers. Otherwise, 2:1 had effect cultivation, resulting longest lengths, highest content, characteristics. This study provides theoretical guidance agricultural practices.