Effects of Bole Cut in Different Basal Diameter Sizes on Branch Sprouting and Cutting Yields of Alnus nepalensis
Abstract：In order to understand effects of bole cut on related parameters of branch sprouting and cutting yield,single factor experiment of bole cut was implemented based on 5 clusters of basal diameters( BD;classed by hierarchical clustering) as the single variables for 3-year-old Alnus nepalensis saplings served as tested materials. The results showed that the first,second,effective branch numbers and cutting yield were 4. 1—9. 6, 1. 3—2. 3, 5. 5—11. 3 branches/sapling, 24—56 cuttings/sapling, which presented significant differences between the clusters ( P<0 . 01 ) . The cutting yield of the first branches accounted for 79. 9%—94. 6% of the total for 5 BD clusters,which indicated that the cuttings mainly from the first branches. The cuttings increased with the BD enlarged;it could significantly increased the cutting yield when bole cut was carried out for the BDs≥3. 00 cm. Therefore,cultivation of sound seedlings to improve the BD growth of A. nepalensis before bole cut was one of main approaches to increase the cutting yields.
Keywords：Alnus nepalensisbasal diameterbranchcutting yield
Publication Date：2017-01-31
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：4( 96-99 )