Nursery plants propagated by cuttings are grown in mist chambers. In Mist Chamber, Relative humidity is maintained artificially at high level with the help of mist installations, which spray water under pressure. Fog formation induces rooting and acclimatization. High relative humidity facilitates better root initiation and cooling effect prevents the cutting from drying out. This method results in faster rooting of the cuttings, create optimum microclimate for better root initiation and development and higher success rate in propagation of hard wood cuttings. Temperature and humidity control in the mist chamber is effected through automated control systems.
At KFRI mist chamber is used for research purpose as well as commercial propagation of Teak, Bamboo and around 25 medicinal plants such as Aegle marmelos, Gmelina arborea, Saraca asoka, Terminalia arjuna, Stereospermum colais, Oroxylum indicum, Clerodendrum serratum, Salacia fruticosa
etc. for which KFRI has standardised the clonal propagation procedure. Research programme for standardization of clonal propagation of imported forest trees are also in progress at the institute.
Contact: Dr. TK Hrideek
Kerala Forest Research Institute
Peechi P.O, Thrissur District, Kerala - 680653, India.