Kaki (Diospyros kaki L.) nursery stocks produced by grafting scion cultivars on kaki seedlings are planted in orchards, and usually have the nonbearing vegetative period for the initial 4 or 5 years like apple (Kataoka, 2002). However, 'Fuyu' and 'Hiratanenashi' scions on MKR1, a dwarfing rootstock for kaki, bore flowers soon after the field establishment in Feb. 2003, and abundantly thereafter (Tetsumura et al., 2010). Hence, we assume that the trees on MKR1 do not have the nonbearing vegetative period. Moreover, the yield efficiencies of young trees on MKR1 were higher than those on kaki seedlings, rootstock-a, and own-roots (Tetsumura et al., 2010). Hence, we also presume that the trees on MKR1 will quickly reach to the high productive age, at which trees on kaki seedlings need a very long period to reach (Kadoya, 1991).
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机译：Kaki（Diospyros Kaki L.）苗圃股市在果园种植了果树幼苗，通常具有苹果（KataOka，2002）的初始4或5岁的不承受的营养营养期。然而，“福州”和“Hiratanenashi”Scions在MKR1，一名Kaki的矮砧木，2月223日的野外建立后令人兴奋的植物，大量（Tetsumura等，2010）。因此，我们假设MKR1上的树木没有不承受的营养期。此外，MKR1上的幼树的产量效率高于Kaki幼苗，砧木-A和自己根源（Tetsumura等，2010）。因此，我们也认为MKR1上的树木将迅速达到高生产率的年龄，在Kaki幼苗上的树木需要很长一段时间（Kadoya，1991）。
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