Diversity within subterranean clover and biserrula for persistence traits with potential use in New Zealand hill country


  • K. Ghamkhar
  • T. Faithful
  • P.G.H. Nichols
  • M.H. Ryan


As part of an investigation into the potential of alternative forage species and/or germplasm in New Zealand's hill country and the traits required for their success, two F2 populations, their original parents, and 34 cultivars of subterranean clover (Trifolium subterranean) were evaluated for hardseededness in Australia. The 34 cultivars were also screened for burr burial strength and flowering time. Microsatellite markers were also used to investigate their association with these traits. The polygenic nature of hardseededness was confirmed and markers associated with this trait were detected and traits for New Zealand's hill country were identified. Additionally, a core collection of 30 (two cultivars and 28 wild) biserrula (Biserrula pelecinus) accessions was screened for flowering time, growth habit and leaflet size. Also, a subset of five accessions of biserrula exhibited traits that are desirable for hill country, namely, mid-late flowering and adaptation to lowmedium rainfall. Keywords: biserrula, flowering time, hardseededness, hill country, subterranean clover






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