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dc.contributor.authorWang, Lei
dc.contributor.authorYang, Tewu
dc.contributor.authorZhu, Duanwei
dc.contributor.authorHamilton, David P.
dc.contributor.authorNie, Zhongnan
dc.contributor.authorLiu, Liangqing
dc.contributor.authorWan, Xiaoqiong
dc.contributor.authorZhu, Congming
dc.identifier.citationWang, L., Yang, T., Zhu, D., Hamilton, D., Nie, Z., Liu, L., & Zhu, C. (2013). Growth and turion formation of Potamogeton crispus in response to different phosphorus concentrations in water. Aquatic Ecology, 47(1), 87-97.en_NZ
dc.description.abstractThe vegetative growth and turion formation of Potamogeton crispus, a submersed aquatic macrophyte, was investigated under a range of phosphorus (P) concentrations (0. 025, 0. 25, 2. 5 and 25 mg P L⁻¹) in the ambient water free of algae, aiming to identify the responses of submersed aquatic macrophytes to nutrient enrichment, a common eutrophication problem in China and worldwide. Plant growth was not affected by different P concentrations in terms of biomass accumulation of stems and leaves. However, the contents of chlorophyll a and starch in plants decreased with increasing water P levels, whereas chlorophyll b and carotenoids declined with P level ranging from 0. 025 to 2. 5 mg P L⁻¹. The soluble sugar content decreased when water P concentration increased up to 2. 5 mg L⁻¹. The P content in plants increased with increasing water P levels, whereas plant N content decreased and soluble protein increased when water P concentration increased over 0. 25 mg L⁻¹, implying that P. crispus may have modified its metabolism to adapt to water P availability. When P concentration increased to 25 mg L⁻¹, the number and dry matter production of turions per plant decreased significantly. Meanwhile, there was a significant reduction in turion weight and the accumulations of soluble sugar and starch in turion, when water P concentration was over 0. 25 mg L⁻¹. The results suggest that turion formation in P. crispus is sensitive to P concentration in the ambient water, and high P levels may lead to decreases in P. crispus populations due to the decline in turion production.en_NZ
dc.relation.ispartofAquatic Ecology
dc.subjectsubmersed macrophyteen_NZ
dc.subjectturion formationen_NZ
dc.titleGrowth and turion formation of Potamogeton crispus in response to different phosphorus concentrations in wateren_NZ
dc.typeJournal Articleen_NZ
dc.relation.isPartOfAquatic Ecologyen_NZ

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