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从1973年开始,我们遵照毛主席关于推广优良品种的指示,充分利用我国优越的自然条件和丰富的泡桐种类资源,根据“以选为主,选、引、育相结合”的方针,在开展群众性的泡桐选优和引种的基础上,先后在郑州、禹县、鄢陵、临颖、鲁山、长葛、襄县、郾城、嵩县、封丘等地进行了泡桐开花习性的观察,人工杂交和杂种苗的培育工作,初步显示出泡桐的杂种优势现象。供试泡桐属树种包括兰考泡桐(Paulownia elongata)、楸叶泡桐(P.catalpifolia)、毛泡桐(P.tomentosa)、光泡桐(P.tomentosa var.tsinlingensis)、山明泡桐(学名待定)以及兰考泡桐的白花变种等。1974-1976年春,我们分别到四川、湖北、湖南、广东、福建、浙江、江西、江苏、上海等省、市,采集了白花泡桐(P.fortunei)、川泡桐(P.fargesii)、台湾泡
Since 1973, in accordance with Chairman Mao’s instructions on the promotion of fine varieties, we have made full use of our superior natural conditions and rich resources of Paulownia species. In line with the principle of “combining election with selection, introduction and education,” we are implementing On the basis of the mass selection and introduction of paulownia, the flowering habits of paulownia were observed in Zhengzhou, Yu County, Yanling, Linying, Lushan, Changge, Xiangxian, Gaocheng, Songxian and Fengqiu , Artificial hybridization and breeding of hybrid seedlings, initially showed that Paulownia heterosis. The species of Paulownia include Paulownia elongata, P.catalpifolia, P. tomentosa, P. tomentosa var. Tsinlingensis, L. capillaris (to be determined) and Lankao Paulownia white flower varieties. In the spring of 1974-1976, we collected P.fortunei, P.fargesii, and Taiwanese Bubbles from Sichuan, Hubei, Hunan, Guangdong, Fujian, Zhejiang, Jiangxi, Jiangsu and Shanghai respectively.