| Literature DB >> 28564276 |
S E Sultan1, F A Bazzaz1.
Abstract
Adaptive phenotypic plasticity is the predicted evolutionary response to fine-grained fluctuation in major environmental factors, such as soil moisture in plant habitats. This study examines genotypes from two natural populations of Polygonum persicaria, one from a relatively homogeneous, moderately moist site, and one from a site in which severe drought and root flooding occur within single growth seasons. Norms of reaction (phenotypic response curves) were determined for a random sample of eight and ten cloned genotypes, respectively, from each of the populations over a controlled moisture gradient ranging from drought to flooding. © 1993 The Society for the Study of Evolution.Entities:
Keywords: Drought stress; Polygonum persicaria.; flood tolerance; genetic variation; norms of reaction; phenotypic plasticity
Year: 1993 PMID: 28564276 DOI: 10.1111/j.1558-5646.1993.tb02133.x
Source DB: PubMed Journal: Evolution ISSN: 0014-3820 Impact factor: 3.694