Effects of paclobutrazol and indole-3-butyric acid on in vitro rooting and growth of some rootstocks of the genus Prunus L.

摘要

In the presented study, the role of paclobutrazol (N-dimethylaminosuccinamic acid) as a growth regulator influencing in vitro rooting was not confirmed. A simultaneous application of paclobutrazol and auxin (indole-3-acetic acid potassium salt) did not show any positive effect on rhizogenesis in experiments with four different Prunus rootstocks. In variants with paclobutrazol, numbers of roots and their lengths were equal or lower than in controls (i.e. without paclobutrazol and auxin). The application of auxin showed a positive effect on the both number and the length of roots.