Journal article

Development of a system to rank perennial ryegrass cultivars according to their economic value to dairy farm businesses in south-eastern Australia

CM Leddin, JL Jacobs, KF Smith, K Giri, B Malcolm, CKM Ho



Dairy production systems in south-eastern Australia are based primarily on grazed pasture. Perennial ryegrass (Lolium perenne L.) is the major grass species used in this region and farmers are faced with the challenge of choosing from more than 60 commercially available cultivars. This paper describes the development of a system termed as a forage value index that ranks the overall performance of perennial ryegrass cultivars relative to cultivar Victorian according to the summation of the estimated difference in the value of seasonal dry-matter (DM) yield of the cultivars. Average predicted seasonal DM yields were calculated by analysing the results of eight available perennial ryegrass plot..

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Funding Acknowledgements

This work was undertaken as part of the 'forage value index' project jointly funded by the State of Victoria through the Department of Economic Development, Jobs, Transport and Resources and Dairy Australia. The authors acknowledge the advisory committee involved in the FVI development, which included members from the Australian Seed Federation and its member companies and also Meat and Livestock Australia who provided data from the pasture variety trial network and the seed companies who have provided data which have been used in the forage value index.