Abstract: Evolvement process of root system architecture in apple was observed to study construction rule of root systemarchitecture in apple by moat method and sector digging method, and the result indicated that root distributing modehas been contructed when the tree was five years old, root density and biomass has achieved greatness, and the architecturewas basically established, root system renewval and the adjust of root type were observed after eight years. There wasobviously layer construction for root system in soil, 10- 15 cm under the earth??s surface was great unsteady, 15- 40 cmwas denseness layer of root system, and there were a few roots in the layer of 40 cm under the earth??s surface or deeper.Change of canopy structure could response the condition of root system configuration, root shape of apple was complex onewhich was composed of horizontal roots and sidelong roots.

Key words: Apple, Rootsystemarchitecture, Evolvement

CLC Number: 

• S663.1??