MUSTANG®  CLONAL ROOTSTOCK

• Botanical name: Prunus x 'Jefchum'

• Origin: ‘Mustang’ is a complex Prunus hybrid with demonstrated potential for wide use as a clonal understock. It has proven effective for budding various Prunus cultivars (both fruiting and ornamental types) throughout North America. It is bud compatible with P. armeniaca (Apricot), P. salicina (Japanese Plum), P. Americana (American Plum), P. persica (Peach) and possibly other related stocks including Thundercloud.

• Hardiness: Zone 2 (Canadian and USDA)

• Description: Mustang™ has several advantages over other existing rootstocks:

  o clonal rootstock with consistent budding results

  o non-suckering understock (in contrast to P. americana)

  o no basal suckering (in contrast to P. besseyi)

  o fibrous root that provides strong anchorage (in contrast to P. besseyi)

  o certified virus free from tissue culture

  o wide compatibility across Prunus species

  o ease of propagation from softwoods or tissue culture

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