THE EFFECT OF BORON ON THE ROOTING OF RHODODENDRON MICROCUTTINGS IN VIVO UNDER HUMIDITY TENT
The following concentrations of boron from the boron acid were compared: 0,462 mM/kg (5 mg/kg) and 2.312 mM/kg (25 mg/kg) and IBA 24.6 mM/kg (0.5%), 12.3 mM/kg (0.25 %) and 4.9 mM/kg (0.1%).
By the results it appears that cuttings from senescent shoots rooted importantly worse as juvenile. IBA has an importantly stronger effect on rooting like boron has. Differences between boron concentration are small and insignificant.