Stable growth inhibition of potted fig (Ficus carica L.) trees by soil sickness
- planting timing,
- root enclosing,
- rooted cutting size,
- shoot growth
Copyright (c) 2020 Akihiro Hosomi
This work is licensed under a Creative Commons Attribution 4.0 International License.
The study was conducted to know a damage progress of soil sickness of ﬁg trees and eﬀect of initial planting conditions on it. Shoot growth of 10liter potted ‘Masui Dauphine’ ﬁgs was inhibited with sick soil from the 1st year of planting, and a stable dwarﬁsh growth was maintained form the 2nd to 9th years, with only a few trees dying. The sick soil aﬀected trees planted in 25-liter pots in June worse than those planted in February, and trees with roots enclosed by non-woven fabric worse than without it. However, these diﬀerences had faded by the 3rd year. The sick soil aﬀected trees in 60-liter pots in the 1st year of planting worse in smaller rooted cuttings than in larger ones. However, in subsequent years, growth inhibition was not aﬀected by the rooted cutting size. These results suggest that the initial conditions, such as planting timing, physical barriers to rooting, and rooted cutting size, all aﬀect potted ﬁg tree growth in the early growing period, and inﬂuence the observed damage caused by sick soil. However in subsequent years, dwarﬁsh growth in sick soil may attain a stable level, which is maintained for many years with very low mortality.