Results from the introduction of white (Trifolium repensL.) and subterranean (T. subterraneumL.) clovers are reported for two summer-dry sites in the South Island of New Zealand. The main North Canterbury site was located within a grazed, sunny hill face. It proved too extreme for white clover which failed to survive beyond the first year. All subterranean clover cultivars were still present after 5 years. Medium-season subterranean clovers (#x2018;Mt Barker#x2019;, #x2018;Howard#x2019;, #x2018;Nangeela#x2019;, #x2018;Woogenellup#x2019;) performed best as did large-seeded resident clovers, but seedling numbers in the poorest cultivars (#x2018;Tallarook#x2019;, #x2018;Clare#x2019;, #x2018;Larisa#x2019;, #x2018;Seaton Park#x2019;) were probably below replacement level. An ungrazed site in the McKenzie Basin gave similar ranking of subterranean clover cultivars.
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