以柃木插条为试验材料，研究了叶和芽对柃木扦插不定根形成的诱导作用。结果表明生根过程中插穗叶片保留的时间越长，其生根率越高；春季和秋季扦插时，无叶无芽插穗的生根率均为0，春插时，无叶有芽插穗的生根率达到23．33％，秋插时，无叶有芽插穗的生根率为0，而有叶无芽插穗的生根率为14．44％，说明活动芽和叶片能促进不定根的形成，适当叶片数量能有效提高柃木生根率。%The experiment the rooting performance of stem of leaf retention, the higher of is designed to investigate into cuttings of E.japonica Thumb. the rooting rate. In spring and the leaves and sprouts, which might affect The results indicate that the longer the time autumn, the rooting rate of cuttings without leaves and sprouts is zero. In spring, the rooting rate of cuttings with sprouts but without leaves is 23.33%. In autumn, the rooting rate of cuttings with sprouts but without leaves is zero, while the rooting rate of cuttings without sprouts but with leaves is 14.44%. It is inferred that active sprouts and leaves are capable of inducing adventitious root formation. The rooting rate of cuttings can be greatly improved with a suitable number of leaves.
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