Primary Report of Introduction Test of Buxus microphyllavar. Koreana in Cold Area
Abstract
[Objective]The aim was to screen out greening Chinese box strains for cold climate areas. [Method]Determination of physiological and ecological index and winter protection test were carried out for B. microphyllavar from Shenyang,Dandong and Dalian at cold area of Mudanjiang. [Result]The seedlings from three different provenances performed obviously different in seven indicators specifying annual high growth,annual base diameter growth,annual shoot diameter,number of shoot,clear length,rate of freezing injury and crown type. Seedlings from Shenyang and Dandong performed much better than those from Dalian. The main factor that restrained the introduction test and propagation of seedling was low temperature,and cold-proof test was made of three provenances. The result showed that the influence of cold-proof on the annual shoot diameter and rate of freezing injury of introduction seedlings was obviously remarkable but number of shoot. [Conclusion]The results provide theoretical basis for the introduction of Chinese box in cold area.