<正>对我国鹅掌楸杂交育种工作进行了回顾与总结。自已故叶培忠教授开创该树种杂交育种工作以来40a的历程,概括地分为3个阶段:杂交可配性与杂种优势探索阶段,杂交后代试种及其生长适应性测定阶段,杂交育种工作全面发展阶段。关于杂交育种工作的主要进展则包括了解和掌握了鹅掌楸属种间杂交可配性、杂交胚胎学、杂交授粉生物学与杂交技术;揭示了杂交种生长优势的形成原因;选出一批优良杂交后代家系与无性系;总结出无性繁殖的技术;初步建立了推广示范点,探索了科研与开发的途径。最后对今后的工作进行了展望性的讨论。

Hybridization in breeding of tulip tree(Liriodendron L.) in last 40 years was reviewed.The history since the beginning of hybridization carried out by the late professor Ye Peizhong could be divided into three stages with researches focusing on:hybridization compatibility and heterosis;hybrid trial on growth and adaptability;full development on hybridization.The main achievements included:grasping of hybridization compatibility,hybridization embryology,pollination biology and hybridization techniques;preliminarily figuring out the causes for the heterosis;selecting of elite hybrid families and clones;developing of propagating techniques;establishing extension base and exploring strategy in research and utilization.The paper also presented an outlook for the breeding of the tulip tree.