贵州省植物园珙桐引种试验

Introduction of Davidia involucrata in Guizhou Botanical Garden

主要针对贵州省植物园从9个地方引种的珙桐,从存活率、物候及病虫害三方面对珙桐引种情况进行阐述,从引种360株珙桐看,发现珙桐引种存活率都较高,贵州省宽阔水自然保护区引种珙桐存活率最高,达到100%。同时我们对引种的珙桐进行物候观测,发现在贵州省植物园栽培后,珙桐物候节律基本趋于一致,在引种栽培期间,共发现4种病虫害,为蜗牛、金龟子、茎腐病、烂根。从整体上看,贵州省植物园引种珙桐的生长情况较理想。

In this paper,we investigated the survival rate,phenophase,diseases and pests of Davidia involucrata introduced in Guizhou Botanical Garden from 9 different places. The survival rate of all the 360 plants was high,and the survival rate of the plants introduced from Kuankuoshui Nature Reserve was the highest（ 100%）. Having been introduced in Guizhou Botanical Garden,the phenophase of all the plants tended to coincide. There were four diseases and pests,including snails,scarabs,stem rot and root rot. Generally speaking,the Davidia involucrate plants introduced in Guizhou Botanical Garden grow well.