Effect of Planting Density on the Growth and Yield of Ligusticum chuanxiong Hort.

This experiment was conducted to study the effect of growth characteristics and yield by different planting density on Ligusticum chuanxiong Hort.Number of stem, leaf and branch on main stem were plant reduced by increasing the plant density. Stem height was showed the highest at planting density, but diameter did not show significant difference at different planting density. Stem number in of field area showed negative correlation with leaf number and branch number on main stem. The height of first branched node became longer by increasing stem number, leaf number and branch number on stem in of field area. Rhizome yield showed negative correlation with stem number and leaf number per plant, but showed positive with stem number in of field area leaf number and branch number of main stem. Root and rhizome weight per plant decreased by increasing planting density, but root and rhizome yield in of field area were increased by high planting density.