[Study on geographical variation of morphologic and germination characteristic of different Glycyrrhiza uralensis provenance seeds].

Objective: To study the geographical variation of morphologic and germination characteristic of different Glycyrrhiza uralensis provenance seeds, approach the geographical variation mode and ecology mechanism, and laid theoretical foundation for districting and allocating of G. uralensis seeds.

Method: Field investigation and laboratory analysis were applied.

[Studies on the shade-endurance capacity of Glycyrrhiza uralensis].

Objective: To study the shade-endurance property of Glycyrrhiza uralensis and provide rationale for the practice of inter-cropping G. uralensis with trees.

Method: Black shading nets were used to provide five different environments of light intensities (light penetration rates of 100%, 75%, 65%, 50% and 25%, respectively).