不同植物生长调节剂对白木香扦插生根的影响

The rooting ability of the cuttings of semi-lignified branches of Aquilaria sinensis by different treatments were studied in this paper. The treatments included the solutions of IAA, IBA, NAA and ABT-1 with the concentrations of 500,1 000 mg·L~(-1) and 1 500 mg·L~(-1). The results showed that there were significant differences in the rooting ratio among different treatments. The rooting ratio of cuttings with IAA 1 500 mg·L~(-1) treatment was the highest at 43.08%, followed by the cuttings with IBA 1 500 mg·L~(-1). The adventitious roots of the cuttings mostly appeared in the callus tissue of the cuttings' bottom section and the position of 0.5 cm away from lower cut section.