泡桐原产我国.国内分布很广,品种及种源间差异较大.若充分利用现有丰富的泡桐资源,有目的地进行杂交育种,可不断地为泡桐生产提供良种,这是进一步提高泡桐生产力的有效途径之一.因此近年来,很多地方都在开展泡桐杂交育种方面的工作,并进行了杂交技术方面的研究.惟有些地方泡桐杂交座果率不太高,而自然座果率却比较高.为了提高泡桐杂交座 Paulownia origin of our country.Domestic distribution is very wide, large differences between varieties and provenances.If you make full use of the existing rich Paulownia resources, purposeful hybrid breeding, can provide continuous production of Paulownia, which is to further improve Paulownia Productivity, so in recent years, many places are engaged in Paulownia hybrid breeding work, and conducted a hybrid technology research.However, some places Paulownia hybrid fruit rate is not too high, but the natural fruit rate is Higher. In order to improve Paulownia hybrids