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过去曾报道过[Cf.FA32,4188]各种桉树的插条生根能力随年龄而降低,迄今为止尚未获得超过14节(叶片着生处—译注)的枝条生根的报告(子叶为第一
It has been reported in the past that [Cf.FA32,4188] rooting ability of cuttings of various eucalyptus trees decreases with age and so far no rooting has been reported for more than 14 shoots (cotyledons are the first