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为了探索泡桐种类生长点（茎尖）培养的最佳培养基，从泡桐属７种中的每种选择１－２株成年树，取其０．５ｍｍ长的生长点，分别培养在４种无菌培养基中。这４种培养基是：Ｍｕｒａｓｈｉｇｅａｎｄｓｋｏｏｇ（ＭＳ）培养基、阔叶树（ＢＴＭ）培养基、木本植物（ＷＰＭ）培养基和Ｗｏｌｔｅｒａｎｄｓｋｃｏｇ（ＷＳ）培养基。在ＭＳ、ＢＴＭ和ＷＰＭ培养基中培养３０天后，外植体成活率最高的是毛泡桐、光泡桐和海岛泡桐。在ＭＳ和ＢＴＭ培养基中成活率最低的是白花泡桐和Ｐ．ｃｏｒｅａｎａ。在ＭＳ和ＢＴＭ培养基中成活申为零的是台湾泡桐和兰考泡桐。在相同的ＢＴＭ和ＷＰＭ培养基中３０天的过程，发芽率较大的是毛泡桐和光泡桐。从成活的外植体上面芽的发育数目和芽的平均长度来看，ＭＳ和ＢＴＭ是最佳培养基，但在种与种之间以及植株个体之间．其生长点的成活率有所不同。
In order to explore the best medium for the growth of Paulownia species (shoot tip), 1-2 adult trees were selected from each of the 7 species of Paulownia, 0.5 mm long growing points were selected and cultured in 4 species Bacteria medium. The four media are: Murashige and Soko (MS) medium, broadleaf tree (BTM) medium, woody plant (WPM) medium and Wolterandskcog (WS) medium. After 30 days culture in MS, BTM and WPM medium, the highest survival rate of explants was Paulownia tomentosa, Paulownia and Paulownia. In MS and BTM medium, the lowest survival rate is white Paulownia and P. coreana. In the MS and BTM medium to apply for zero is Taiwan Paulownia and Lantau Paulownia. In the same process of 30 days in BTM and WPM medium, the higher germination rate was Paulownia and Paulownia. Based on the number of buds and the average length of shoots on viable explants, MS and BTM are the best mediums but between species and species and between individual plants. The survival rate of their growth point is different.