Effects of D ifferen t Rhizobia Inocula ted on Acacia c rassica rpaTissue2Cultured Plantlets Infection progress of arbuscular mycorrhizae on tissue-cultured plantlets of Pinellia ternata Technology of tissue cultural propagation of Malus zumi Changes in Antioxidase Activity and Osmotic Adjusting Substance of Tamarix chinensis Seedlings under NaCl Stress Growth and Its Physiological Characteristics of Cydonia oblonga Tissue-cultured Plant with Salt Stress 草莓离体无性繁殖的研究——Ⅱ.试管苗移栽和田间表现 A STUDY ON VA MYCORRHIZAE FORMED ON THE TISSUE-CULTURED PLANTLETS OF PAULOWNIA Callus induction and cultivation of Phyllanthus urinaria