<正>利用白蚁喜食和对白蚁有引诱作用的几种物质（甘蔗粉、木耳粉、松花粉及柠檬醛和香草酸）对两种乳白蚁进行了"Y"型嗅觉仪试验和触角电位（EAG）测定。嗅觉试验的结果表明：家白蚁Coptotermes Formosa-nus对0.1μL/mL的柠檬醛、10μg/mL的香草酸及木耳粉具有明显的趋性，而对10μL/mL的柠檬醛则有显著的忌避性；大家白蚁C curvignathus对1μL/mL的柠橡醛及木耳粉的趋性极为明显。触角电位测定的结果表明，两种白蚁对上述几种物质均有EAG反应。其中，对柠檬醛和香草酸的EAG反应较强烈，并随着浓度升高反应值增大。两种白蚁对柠檬醛的反应值高于香草酸。实验结果证实，上述几种物质对两种白蚁均有一定的引诱作用。可以在白蚁诱集中应用。

The purpose of the study was to investigate the effects of several factors on rooting of cutting propagation of Picea balfouriana, including cutting types, cutting position, treatment times soaking by water, age of ortets, different individuals and plant hormones. The experimental results showed that there was difference of rooting percentage among different individuals. The rooting percentage of lignified branch was increased by plant hormone treatment, especially treated by IBA 500mg/kg one hour and 200mg/kg five hours respectively, whose rooting percentage were 88.1% and 81.0%. The rooting percentage and rooting number per cutting of young individuals was the same as mature individuals’. There was no different of rooting percentage among different cutting position. Meanwhile, the rooting course at Shangrila of Yunnan province was analyzed, all cutting have callus in 35d after cutting, 45~60d, 90~100d after cutting was the period of higher rooting percentage.