杂种马褂木扦插繁殖技术的研究

A Simple Efficient Cuttage Technique of Liriodendron chinense×L.tulipifera

针对马褂木不具原生根原基,穗条扦插不易生根这一特性,对影响扦插生根的母树年龄、穗条枝龄、扦插基质、扦插季节、生根特点以及插后管理等因子进行了比较系统的试验研究,提高了扦插成活率。一般扦插生根成活率可达80%,如采用带顶芽嫩枝穗条扦插高达91.4%。鉴于嫩枝扦插效果突出,遂又增设采穗圃研建内容,以供大批量培育嫩枝扦插苗,形成了自采穗圃营建、采穗、扦插到插后管理等一套完整而简易高效的杂种马褂木扦插繁殖实用技术。

Chinese tuliptree has not inherent root primordia, which make its cut twigs difficult to survive. In order to increase cutting survival rate, systematic tests and studies were undertaken on mother tree age, twig age, cuttage base material, cuttage season, rooting characters, and post management. The cuttage with twigs having the top and buds could reach 91.4% in survival rate in comparison with 80% of the conventional cuttage. Therefore we built a twig nursery. A simple efficient cuttage technique was developed from the twig nursery, cutting to post management.