Optimization of asexual cutting propagation techniques for Rubus alceaefolius

With the 3 factors (rooting rate, average root length and average root quantity) as the indicators of rooting qualities, we conducted a study on the optimization of asexual cutting propagation techniques for Rubus alceaefolius with orthogonal experimental design. The results showed that the rooting qualities of R.alceaefolius after cutting propagation significantly affected by NAA concentration, propagation matrix, cuttings type and processing time. Propagation matrix had the greatest impacts on the rooting qualities, processing time had the second greatest impacts and NAA concentration and cutting type had the lower impacts. Under the treatment with 100 mg·L-1 NAA concentration, 2 hours processing time, garden soil as the propagation matrix, and annual stems with buds as the cuttings, the rooting quality of R.alceaefolius were the best.