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Growth and root distribution of Vallisneria natans in heterogeneous sediment environments
Xie, Yonghong; Deng, Wei; Wang, Jinda
Corresponding AuthorXie, Yonghong
2007
Source PublicationAQUATIC BOTANY
ISSN0304-3770
Volume86Issue:1Pages:9-13
SubtypeArticle
AbstractPlant growth, biomass allocation and root distribution were investigated in the submerged macrophyte Vallisneria natans growing in heterogeneous sediments. Experimentally heterogeneous sediment environments were constructed by randomly placing 4 cm of clay or sandy loam into the top (0-4 cm) or bottom (4-8 cm) layer within an experimental tray, providing two homogeneous and two heterogeneous treatments. Biomass accumulation was significantly affected by the experimental treatments: higher in the homogeneous sediment of clay (32 mg per plant) and the two heterogeneous treatments (about 27 mg per plant), but lower in the homogeneous sediment of sandy loam (15 mg per plant). Root: shoot ratio was also different among the four treatments. Compared with the treatments of clay in the top layer, plants allocated more biomass to roots at the treatments of sandy loam in the top layer. Heterogeneous sediments significantly affected root distribution pattern. Compared with the treatments of sandy loam in the bottom layer, root number (7-8 versus 13-14) and total root length (3.6-4.0 cm versus 29.5-40.0 cm) in the bottom layer were significantly higher in the treatments with clay in the bottom layer. These results indicate that both sediment structure and nutrient availability influence growth and root system distribution of V natans. (c) 2006 Elsevier B.V. All rights reserved.
KeywordHeterogeneous Environment Nutrient Phenotypes Root Foraging Vallisneria Natans
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.aquabot.2006.08.002
WOS Subject ExtendedPlant Sciences ; Marine & Freshwater Biology
Indexed BySCI
WOS KeywordNUTRIENT AVAILABILITY ; PLANTS ; ARCHITECTURE ; ARABIDOPSIS ; PLASTICITY
Language英语
Quartile4区
TOP
WOS SubjectPlant Sciences ; Marine & Freshwater Biology
WOS IDWOS:000243613200002
Citation statistics
Cited Times:30[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/10521
Collection成都山地所知识仓储(2009年以前)
山区发展研究中心
Affiliation1.Chinese Acad Sci, Inst Subtrop Agr, Changsha 410125, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
3.Chinese Acad Sci, NE Inst Geog & Agr Ecol, Changchun 130012, Jilin, Peoples R China
Recommended Citation
GB/T 7714
Xie, Yonghong,Deng, Wei,Wang, Jinda. Growth and root distribution of Vallisneria natans in heterogeneous sediment environments[J]. AQUATIC BOTANY,2007,86(1):9-13.
APA Xie, Yonghong,Deng, Wei,&Wang, Jinda.(2007).Growth and root distribution of Vallisneria natans in heterogeneous sediment environments.AQUATIC BOTANY,86(1),9-13.
MLA Xie, Yonghong,et al."Growth and root distribution of Vallisneria natans in heterogeneous sediment environments".AQUATIC BOTANY 86.1(2007):9-13.
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