Resource availability modulates above- and below-ground competitive interactions between genotypes of a dominant C4 grass
Version of Record online: 4 FEB 2014
© 2013 The Authors. Functional Ecology © 2013 British Ecological Society
Volume 28, Issue 4, pages 1041–1051, August 2014
How to Cite
Chang, C. C., Smith, M. D. (2014), Resource availability modulates above- and below-ground competitive interactions between genotypes of a dominant C4 grass. Functional Ecology, 28: 1041–1051. doi: 10.1111/1365-2435.12227
- Issue online: 12 JUL 2014
- Version of Record online: 4 FEB 2014
- Accepted manuscript online: 27 NOV 2013 10:10AM EST
- Manuscript Accepted: 22 NOV 2013
- Manuscript Received: 24 MAR 2013
- NSF DDIG. Grant Number: 1011371
- Yale University Enders Fellowship
- Yale Institute for Biospheric Studies Field Ecology
Table S1. Phenotypic differences (height, total leaf area, individual tiller biomass) between four common genotypes of Andropogon gerardii as measured in the field (2008) at the Konza Prairie Biological Station.
Table S2. Mean (± SE) aboveground individual tiller biomass (g) and number of new vegetative tillers produced by Andropogon gerardii genotypes grown in inter-genotypic (e.g. AB) competition under high light conditions with either low (−) or high (+) water (W) and nitrogen (N).
Table S3. Effects of genotype identity (G) and resources (W, water, N, nitrogen; R, both water and nitrogen) on the yield-suppression coefficient (S) of Andropogon gerardii individuals grown in inter-genotypic competition under the low and high light treatments (see text for details).
Table S4. Mean and standard error values of yield-suppression coefficients (S) calculated using root, above and total biomass for each genotype grown under low and high light conditions.
Table S5. Relative Yield Total (RYT) for each pairwise genotype combinations.
Table S6. Effects of genotype combination (AB, AC, AD, BC, BD, CD) and resources (W, water, N, nitrogen; R, both water and nitrogen) on the relative yield total (RYT) of Andropogon gerardii individuals under the low and high light treatments.
Fig. S1. Measured phenotypic traits of Andropogon gerardii genotypes grown alone, in intra, and intergenotypic competition under low and high light conditions.
Fig. S2. Measured phenotypic traits of Andropogon gerardii genotypes grown alone, in intra, and intergenotypic competition under low and high light conditions.
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