Influences of temperature and light intensity on the growth and pollutant removal by Hydrilla verticillata Effects of arsenic speciations on contents of main organic acids in Hydrilla verticillata and Potamogeton malaianus Karyotype Analysis of Hydrilla The Ontogeny of Hydrilla verticillata (L.f.) Royle STUDIES ON PRODUCTIVITY OF HYDRILLA VERTICILLATA ROYLE Influence of Cd2+ or Cu2+ stress on the growth and photosynthetic fluorescence characteristics of Hydrilla verticillata Physiological effects of ammonia-nitrogen concentrations on Hydrilla verticillata Effects of exogenous calcium on resistance of Hydrilla verticillata (L. f.) Royle to cadmium stress Ultrastructural Study of Leaf Cells Damaged from Hg2+ and Cd2+ Pollution in Hydrilla verticillata Influence of silts on growth and development of Hydrilla verticillata’s seedling in silt waters Influence of different sediment nutrients on growth and photosynthesis fluorescence characteristics of Hydrilla verticillata (L.f)Royle