Annals of Botany 28: 221-228, 1964
© 1964 Annals of Botany Company
RESEARCH-ARTICLE |
Effect of Graft and Sexual Hybridization on the Nodulation of Trifolium ambiguum M.B.
Welsh Plant Breeding Station Aberystwyth
Trifolium ambiguum M.B. is a potentially important clover species, but it has not been used widely as a forage legume because it nodulates sparsely or not at all and the nodules formed are usually ineffective. In some compatible grafts of T. hybridum on T. ambiguum effective nodules developed on the roots of the stock. In addition, effective nodulation was obtained on the sexual hybrid between these two species. The investigation deals with the effectiveness of nodulation of the graft and sexual hybrids and also of the two host species when inoculated with isolates from the graft hybrid, the sexual hybrid, T. hybridum, and from effectively nodulating T. ambiguum.