Abstract
Despite the potential value of white clover for Australian pastures in the high rainfall zone, there is a lack of adapted cultivars, especially for dryland environments where hot dry conditions in summer limit persistence. A joint NZ AgResearch - NSW Agriculture breeding project is evaluating key groups of world-sourced white clover germplasm characterised by specific criteria; medium leaf/early flowering, high nodal root frequency, taprootedness, stoloniferous/medium leaf and drought tolerance. Results in the first growth cycle indicated that plant spread and herbage yield were associated with these criteria. Results over three growth cycles will be used to identify elite parent genotypes for polycrossing and testing in target dryland environments. Keywords: breeding, drought tolerance, dryland pastures, persistence, Trifolium repens, white clover
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