Urana is a hardseeded, moderately early flowering F-5-derived crossbred subterranean clover of var. subterraneum [( Katz. et Morley) Zohary and Heller] developed by the collaborating organisations of the National Annual Pasture Legume Improvement Program. It has been selected for release as a new cultivar on the basis of its high winter and spring herbage production and overall field performance relative to other subterranean clovers of similar maturity. Urana is recommended for sowing in Western Australia, New South Wales, Victoria, South Australia and Queensland. It is best suited to well-drained, moderately acidic soils in areas with a growing season of 5 - 7 months, which extends into mid-October. Urana is suited to phase farming and crop rotations. It has been granted Plant Breeders Rights in Australia.
Nichols, P. G. H., Barbetti, M., Sandral, G. A., Dear, B. S., De Koning, C. T., Lloyd, D. L., ... You, M. P. (2006). Urana subterranean clover (Trifolium subterraneum L. var. subterraneum). Australian Journal of Experimental Agriculture, 46(8), 1105-1107. https://doi.org/10.1071/EA05083