Abstract
In this paper, sinking and growth of apexes and mid-stems of Myriophyllum spicatum L., Hydrilla verticillata (L.f.) Royle and Ceratophyllum demersum L. in concrete ponds containing eutrophic water and sediment were investigated. Sinking rates of apexes and mid-stems reached 34.8% and 4.4% at the 6 th day and 91.1% and 66.7% at the 22 nd day for M. spicatum, 57.8% and 55.6% at the 6 th day and 100% and 97.8% at the 22 nd day for H. verticillata, 18.9% and 86.7% at the 6 th day and 95.6% and 100% at the 22 nd day for C. demersum, respectively. Most sunken fragments established themselves successfully with significant growth. Total shoot length of plantlets developed from apexes and mid-stems increased by 399% and 61% for M. spicatum, 593% and 256% for H. verticillata and 114% and 104% for C. demersum, respectively. The results showed that it was feasible to establish submersed macrophytes via sinking and colonization of shoot fragments clipped off manually.
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Foundation item: Supported by the National Natural Science Foundation of China (39925007), the High Technology Research and Development Program of China (2002AA601021) and the Knowledge Innovation Program Key Project of Chinese Academy of Sciences (KSCX2-SW-102)
Biography: WU Zhenbin (1956–), male, Professor, Ph. D., research direction: environmental biology and environmental engineering.
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Wu, Z., Zuo, J., Ma, J. et al. Establishing submersed macrophytes via sinking and colonization of shoot fragments clipped off manually. Wuhan Univ. J. of Nat. Sci. 12, 553–557 (2007). https://doi.org/10.1007/s11859-006-0057-6
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DOI: https://doi.org/10.1007/s11859-006-0057-6