Hardwood cutting propagation of Corylus heterophylla Fisch.×C.avellana L.
In this paper,an orthogonal experiment was conducted to investigate the effects of the hormone type,hormone concentration,and cutting type on the rooting characteristics and rooting rate of one-year-old cuttings of C.heterophylla × C.avellana in the garden soil.The result showed that the maximal rooting rate was 79.33% and the optimal treatment was that using the low portion of the suckers as cuttings treated with 200× 10-6 IBA for 6 h or using up-middle current year branches as cuttings treated with 200× 10-6 ABT3 for 6 h.Roots were mainly induced from the bark and some roots also developed from the callus tissues in hardwood cuttings of C.heterophylla × C.avellana.