Physiological aspects of cut orchids’flowers.
The Orchidaceae family has large diversity of species and
hybrids with prominent inflorescence provided for by their size, form and colour combinations which contribute
to their aesthetics. In Floriculture, orchids are grown primarily as potted plants, but more recently there has
been an increased demand for fresh cut orchids for exportation. Those genera with characteristics proper for
include Oncidium, Cymbidium, Dendrobium, Phalaenopsis and Cattleya. However, materials for fresh cut
export are still far short of demand because there is little information available on methods that can be used to
improve postharvest longevity of these flowers. The loss of cut flower quality is related to several physiological
processes, including interactions among floral components that also related to qualitative factors. This research
was conducted to determine which factors of orchid postharvest physiology could be used to ensure quality
and postharvest longevity. These factors include senescence, flower longevity, developmental stage, water
relations, respiration, reserve substrate, vascular blockage and plant hormones.