PJB-2024-298
EFFECTS OF PHOTOPERİODİSM AND LİGHT COLOR ON GERMİNATİON OF ANACAMPTİS SANCTA (L.) SEEDS
salih parlak
Abstract
In response to the decreasing natural habitats of orchids, which are at risk of extinction, studies conducted in asymbiotic environments have become increasingly important for their conservation. Although there have been numerous studies on orchid germination and development, research on the effects of photoperiod and light color remains limited. This study aims to investigate how photoperiod and light color influence the germination and seedling development of Anacamptis sancta, a species widely harvested for food purposes in Turkey. The study investigated the effects of 5 different photoperiods and 7 various light colors on germination. The results reveal that germination occurs earlier in dark environments regardless of the photoperiod, but there is no significant difference in final germination rates. Continuous light significantly promotes seedling growth. Furthermore, germination rates vary under different light colors, with the highest rate (52.7%) observed under green light. On the other hand, the lowest rates are observed in complete darkness and under red light, with no significant difference among yellow, orange, purple, and blue light conditions.
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