Light sources on the germination and initial in vitro establishment of Schomburgkia crispa Lindl., a species of the Brazilian Cerrado

ABSTRACT: Light is one of the factors that influence germination and initial establishment orchids under in vitro cultivation. This study evaluated effect different light sources on these stages cultivation Schomburgkia crispa Lindl. After sowing an aseptic environment, we stored cultures a screened greenhouse (natural light) or growth room with following sources: 3,000 K yellow LED; 6,500 white LED [1]; [2]; fluorescent lamp (control). We assessed percentage seedling at 45 90 days after sowing. did not S. crispa. However, use provided faster when compared to other sources, also presenting lower mortality. Thus, source potential substitute for lamps LEDs used rooms culture laboratories.