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一、我省泡桐中,白花泡桐、毛泡桐、兰考泡桐、楸叶泡桐、光泡桐均为虫媒传粉植物,套袋自交均不授精结实。二、白花泡桐、毛泡桐、兰考泡桐、光泡桐同株异花授粉,除毛泡桐外,均不易受精结实。白花泡桐的单株无性系植株间互相授粉亦不结实。三、白花泡桐、兰考泡桐、毛泡桐及光泡桐不同类形植株间授粉杂交,容易授精结实。四、白花泡桐、毛泡桐、兰考泡桐、光泡桐正反交中,除兰 x 光不易亲合外,其余较易亲合结实。五、泡桐的一些种类混合授粉,可以授精结实。六、泡桐与楸树科间远缘杂交难于授精结实。
First, in our province Paulownia, Paulownia paulownia, Paulownia, Lange Paulownia, Catalpa bungei, Paulownia are insect-pollinated plants, bagging self-fertilization are not strong. Second, white Paulownia, Paulownia Paulownia, Paulownia paulownia, Paulownia paulownia alien cross-pollination, Paulownia Paulownia, are not easy to fertilize. White Paulownia individuals clonal plants each other pollination is not strong. Third, white Paulownia, blue kelp Paulownia, Paulownia and Paulownia different types of plants pollination cross between the easy insemination and fruiting. Fourth, white Paulownia, Paulownia Paulownia, Paul blue paulownia, Paulownia involution, in addition to blue x-ray is not easy to affinity, the rest are more affinity and firm. Fifth, some types of Paulownia mixed pollination, fertilizers can be strong. Six, Paulownia and Catalpa bifolia distant hybridization difficult to inseminate and strong.