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4种沉水植物断枝再生能力研究

Study on Regeneration Ability of Segment in Four Submerged Macrophytes

投稿时间：2008-10-25

DOI：

英文关键词:Submerged macrophyte Segment Regeneration ability Adventitious root Sprout Throwing Cuttage

基金项目:

作者	单位
葛绪广	湖北师范学院地理科学系湖北黄石南京师范大学地理科学学院,江苏省环境演变与生态建设重点实验室江苏南京
王国祥	南京师范大学地理科学学院,江苏省环境演变与生态建设重点实验室江苏南京
陆贻超	南京师范大学地理科学学院,江苏省环境演变与生态建设重点实验室江苏南京

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中文摘要:

比较研究了4种长江中下游湖泊常见的沉水植物（金鱼藻、伊乐藻、黑藻和穗花狐尾藻）断枝在投掷和扦插的移植方式下，生物量、株高、节数的变化及不定根和新芽形成的时间。结果表明，在试验期间，各种断枝均发生了明显的变化，除金鱼藻外，其他3种沉水植物均有不定根产生；除穗花狐尾藻外，其他3种沉水植物断枝均有新芽产生。投掷和扦插对金鱼藻断枝生物量、节数和新芽的产生无明显影响，对株高影响显著；对黑藻和伊乐藻断枝生物量、株高、节数、不定根和新芽的产生影响显著；对穗花狐尾藻断枝的生物量、株高影响显著，对节数影响不明显，而对不定根的产生有一定的影响。研究结果为退化水体的修复、恢复和重建提供了参考。

英文摘要:

This paper compared the effects of transplanting method, throwing method or cottage, on the changes of biomass, height, node and the time for adventitious roots and sprout formation after transplanting segments of 4 submerged maerophytes, Ceratophyllum demersum, Elodea nuttallii, Hydrilla verticillata and MyriophyUum spicatum, which are common dominant submerged macrophytes in lakes along the middle and lower reaches of the Yangtze River. The results showed that all segments had obvious changes. After transplantation, all the segments developed adventitious roots except those of C. demersum and developed sprout except those of M. spicatum. Throwing method and euttage had no significant influences on biomass, node and the time for sprout formation, but had significant influences on the plant height of C. demersum. The transplantation method had significant influences on biomass, node and the time for adventitious roots and sprout formation of E. nuttallii and H. verticillata, and on biomass and height of M. spicatum, but no significant influences on the node and the time for adventitious roots and sprout formation of M. spicatum. The results can provide reference to the remediation, restoration and reconstruction of degraded water.

葛绪广,王国祥,陆贻超.2009.4种沉水植物断枝再生能力研究[J].水生态学杂志,30(4):23-28.

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