Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 499516
Title The importance of considering origin in effects of nitrogen deposition on plant performance and competitive ability
Author(s) Wedlich, Kerstin V.; Vergeer, P.; Ashmore, M.R.; Berg, L. van den
Source Plant and Soil 401 (2016)1. - ISSN 0032-079X - p. 307 - 318.
Department(s) Nature Conservation and Plant Ecology
Publication type Refereed Article in a scientific journal
Publication year 2016
Abstract Background and Aims Differential capacity of species/genotypes to respond to increased atmospheric N deposition may be an important long-term driver of species composition change. In this study, differences in response to atmospheric N deposition were analysed for different accessions of Prunella vulgaris. Methods P. vulgaris plants deriving from different N deposition accessions (0–15, 15–25 and 25–35 kg N ha−1 yr−1) were exposed to different N
treatments (10 or 30 kg N ha−1 yr−1), with and without competition with the grass Bromus erectus. After 8 months, plant performance and differences
in competitive ability were determined. Results Strong effects of accession were found, often in interaction with N treatment: P. vulgaris plants from
populations with low N deposition backgrounds often outperformed plants from medium to high N backgrounds, illustrated by greater biomass at high N treatment and higher chlorophyll and leaf N concentrations at low N treatments. When grown in competition, however, a strong decrease in biomass was observed for plants from all accessions. Conclusion All accessions of P. vulgaris showed a low competitive ability. Plants from low N accessions proved to be most sensitive to competition in terms of root biomass. However, in the absence of competition, low N accessions showed a greater plasticity in nitrogen
use efficiency. These results illustrate the importance of including accession when considering effects of N deposition.
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