POLYMORPHISM IN ARRHENATHERUM ELATIUS (L.) BEAUV. EX J. & C. PRESL
- 1 September 1975
- journal article
- Published by Wiley in New Phytologist
- Vol. 75 (2) , 269-276
- https://doi.org/10.1111/j.1469-8137.1975.tb01396.x
Abstract
SUMMARY: In the vicinity of Sheffield, natural populations of Arrhenatherum elatius exhibit continuous variation in tiller and leaf number, leaf length and tiller angle. In the associated range of morphologies, the extremes are represented by erect and prostrate plants. Field and laboratory investigations suggest that this polymorphism is genetically controlled and may be attributed to the conflicting selection pressures imposed by competition for light in tall herbaceous vegetation and by continuous defoliation in pastures.Keywords
This publication has 2 references indexed in Scilit:
- The Grassland Vegetation of the Sheffield Region: II. Classification of Grassland TypesJournal of Ecology, 1972
- Arrhenatherum Elatius (L.) J. &. C. Presl (A. Avenaceum Beauv.)Journal of Ecology, 1962