In the lower rainfall part of the recommendation zone, with a growing season length of less than six months, York should be mixed with Dalkeith. In higher rainfall districts with a growing season length of at least 6.5 months, York should be mixed with Junee. Add Trikkala to the mixture for paddocks with patches subject to waterlogging or with loamy soil of good water-holding capacity. Production and marketing York has been granted protection under the Plant Breeder's Rights Act 1994. There is also no restriction on sale of produce other than seed from York, such as hay or silage.
Sale includes exchange by way of a barter arrangement.
Unauthorised propagation of seed for commercial purposes or sale of this variety is an infringement under Section 53 of the Plant Breeder's Rights Act 1994. The financial support of the International Wool Secretariat and the Grains Research and Development Corporation for the development and evaluation of York is gratefully acknowledged.