11种观赏地被植物引种栽培和耐荫性试验

Introduction and Cultivation of Eleven Ornamental Ground Cover Plants and the Shade Tolerance

根据南京地区气候条件和绿化特点,结合种质资源调查,引种栽培了11种有观赏价值的地被植物;对荫蔽条件下引种材料的扩张能力和覆盖能力进行观察,证实:11种地被植物在75%和90%盖度的林下能正常生长发育,安全越冬、越夏,第2年春季恢复生长良好。采用分光光度法对3种不同处理条件下的11种地被植物叶绿素含量和叶绿素a/b进行测定,经90%遮光处理后,种间耐荫性强弱顺序为:佛甲草、青绿苔草、玉竹黄精、富贵竹、细叶麦冬、吉祥草、长春蔓、扶芳藤、连钱草、凹叶景天、无毛紫露草;75%遮光处理后种间耐荫性强弱顺序为:青绿苔草、玉竹黄精、凹叶景天、佛甲草、细叶麦冬、富贵竹、吉祥草、扶芳藤、长春蔓、连钱草、无毛紫露草。

The resources of ornamental ground cover plants has been investigated and implanted in view of the climate and the existing situation of afforestation in Nanjing region. Then, The stems and foliages＇ spreading nature and ornament character was observed and analyzed. The results indicated that the plants can adapt the surroundings through the winter and summer, having a better manifestation in the growth. Furthermore, shade tolerance of the plant materials was analyzed quantitatively by use of the spectrophotometric, from strong to the weak of shade-tolerance under the settle A is： Sedum lineare , Carex leucochlora , Polggonatum odoratum , Pachysandra termihalls, Liriope minor, Reineckea carnea , Vinca major, Euonymus fortunei, Glechoma longitaha, Sedum emarginatum, Tradescantra virginiana under the settle B is： Carex leucochlora, Polggonatum odoratum , Sedum emarginatum , Sedum lineare , Liriope minor, Pachysandra terminalis , Reineckea carnea , Euonymus fortunei , Vinca major, Glechoma longituba , Tradescantra virginian.