Orthogonal test for optimization of quercetin extracting procedure from bud of Sophora japonica EFFECTS OF CO2 ENRICHMENT ON GROWTH AND PHYSIOLOGICAL PROPERTIES OF SOPHORA JAPONICA L. SEEDLINGS Variation of heavy metal enrichment efficiency in roadside trees of Sophora japonica L. with different diameters at breast height MICROSTRUCTURAL CHANGES AND ISOPEROXIDASE CHANGES OF COTYLEDON CELL IN SOPHORA JAPONICA L. DURING SEED DEVELOPMENT STUDIES ON THE TISSUE AND CELL CULTURE OF SOPHORA JAPONICA L. A STUDY ON COMPARATIVE ANATOM OF REGENERATION PLANTS(SOPHORA JAPONICA L.)OBTAINED IN VITRO Quantitative analysis of quercetin in bud of Sophora japonica by RP-HPLC Studies on chemical constituents from seeds of Sophora japonica Ⅱ