BOTTOM HEAT
Misting may sometimes lower the temperature of the rooting medium below the surface level for propagation, especially when cuttings are made in winter.
Under such circumstances, application of warmth to the base of the cuttings will promote root development quickly and adequately in some species which are otherwise difficult to root. It can be done by means of soil warming cables. They can be laid suitably below 5cm of the rooting medium in the propagation bench. Thermostats are used to control and maintain the temperature automatically.
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