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Proceedings of the International Plant Propagator's Society

Vol. 62

Microscopic Observation on Graft Union of Dwarfing Rootstock for Japanese Persimmon (Diospyros kaki Thunb.(

Shuji Ishimura, Chitose Honsho, Takuya Tetsumura and Hiroyuki Chijiwa

pp: 469


There are several reports relating to the growth of Japanese persimmon (Diospyros kaki Thunb.) grafted on dwarfing rootstocks (Yakushiji et al., 2008). However, the reason that the dwarfing rootstocks reduce the vegetative growth of scions is still unknown. Several factors, such as graft incompatibility and water conductivity between scion and rootstock (Izu et al., 2008), have been suggested as causing fruit trees to be dwarfed, and the same mechanisms may occur in the dwarfed trees of Japanese persimmon. Thus, we microscopically observed the graft union soon after grafting to verify whether there were any abnormalities of the regenerated tissues and also re-examined more than 1 year after the grafting.

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