Department of Botany, the University, Manchester M13 9PL, U.K.
BREEDING BEHAVIOUR AND POPULATION DIFFERENTIATION IN THE HEXAPLOID GRASS KOELERIA VALLESIANA (HONCK.) BERTOL.
Article first published online: 2 MAY 2006
Volume 83, Issue 2, pages 537–547, September 1979
How to Cite
CALLOW, R. S. and Parker, J. S. (1979), BREEDING BEHAVIOUR AND POPULATION DIFFERENTIATION IN THE HEXAPLOID GRASS KOELERIA VALLESIANA (HONCK.) BERTOL. New Phytologist, 83: 537–547. doi: 10.1111/j.1469-8137.1979.tb07475.x
- Issue published online: 2 MAY 2006
- Article first published online: 2 MAY 2006
- (Accepted 10 November 1978)
In Britain, the hexaploid perennial grass Koeleria vallesiana (Honck.) Bertol. is confined to the western end of the Mendip Hills but is widespread in western Europe. Comparisons of the marginal British populations with continental populations from France indicate that there are no differences in breeding behaviour or genetic variability. There are, however, greater geneti differences in morphological characters between British and French material than between British populations. In addition, the Mendip populations, which are topographically isolated, show significant differences in morphology which are genetic in origin.
Comparisons of floret fertility under different systems of mating indicate that K. vallesiana is a self-incompatible outbreeder. Florets collected from the wild show low fertility (c. 5%) in common with other outbreeding perennial grasses.