Keywords: 
• Jatropha curcas L. /
• Architecture /
• Internal priority /
• Plasticity /
• Structural limitation

Abstract: Adaptation hypothesis proposed in clone grass plants also could interpret the adaptation of architecture of tree plants to habitat resource patches,the earlier developed tree architecture would limit the latter structure,and common attentions would not be paid to this view.In this paper,studies were made of the adaptation of tree architecture for shrub Jatropha curcas to six patches of habitat resources and analysis was made of the structural limitation of this response.38 plots of 10 m×10 m forests of J.curcas were surveyed and classified into six typical habitats for differences in November of 2010.The branch diameter,length,angle,amounts were measured by a unit of every first-class branch,counting the second and third class branch amounts and selecting the mean branch and measuring the diameter,length and angle.The amounts of the first and second class branch for J.curcas had obvious responses to habitats,and there were extremely differences presented among six habitats in individual bifurcation_2:1,Rb_3:2,total Rb,Rd_2:1,Rd_3:2,total Rd,Rl_2:1,Rl_3:2,total R_l.Correlation analysis indicated that,Rb_2:1,Rd_2:1 and Rl_2:1 had a negative,positive or null relationship to all types of parameters in six habitats,and totally Rb_2:1 had significantly negative effects and Rd(l)_2:1 had relatively and obviously positive effects.The structural limitation of earlier established architecture in J curcas could attribute to tradeoff and positive tradeoff between bifurcation amounts and their diameter and length.The adaptation of J curcas architecture to different habitat resource patches firstly established resource allocation patterns and branching pattern within individuals through branching amount control and positive and negative tradeoff with a complexity.