Photosynthetic characteristics in leaves of Davidia involucrate Influence of soil nitrogen concentration and solar radiation on Davidia involucrate Baill seedlings’ growth Tissue Culture and Plant Regeneration of Endangered Plant Davidia involucrate Baill Study on Genetic Differentiation for Geographic Population of Davidia involucrate by RAPD Marker Preliminary Studies on the Phytocommunity of Davidia involucrata in Omei Mountain of Sichuan Changes on the edogenous phytohormone content of the Davidia involucrate seed during dormancy and germination process