Mustang Rootstock
Mustang Rootstock - Jeffries Nurseries Ltd.
Mustang Rootstock - Jeffries Nurseries Ltd.
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www.jeffriesnurseries.com<br />
<strong>Mustang</strong> ® <strong>Rootstock</strong><br />
Prunus x ‘Jefchum’<br />
P. americana rootstock <strong>Mustang</strong> ®<br />
Westcot & M-604 Apricot<br />
on <strong>Mustang</strong> <strong>Rootstock</strong><br />
© Jeffries Nurseries Ltd., 2011
<strong>Mustang</strong>® Prunus <strong>Rootstock</strong><br />
Prunus x ‘Jefchum’<br />
Jeffries Nurseries Ltd. has been working for 20 years on a clonal rootstock that would be<br />
compatible with Prunus selections including fruiting plums, ornamental plums, apricots and<br />
possibly peach. Hybrid seedlings of cherry-plum (complex salicina/americana/besseyi) were<br />
evaluated for root anchorage, suckering of root and crown, propagation ease from hardwood/softwood<br />
cuttings and wide compatibility.<br />
‘<strong>Mustang</strong>’ is a complex Prunus hybrid with demonstrated potential for wide use as a clonal<br />
understock. It has proven effective for budding various Prunus cultivars (both fruiting and<br />
ornamental types) throughout North America. It is bud compatible with P. armeniaca<br />
(Apricot), P. salicina (Japanese Plum), P. Americana (American Plum), P. persica (Peach) and<br />
possibly other related stocks including Thundercloud.<br />
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Botanical Name: Prunus x ‘Jefchum’<br />
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Family:<br />
Rosaceae<br />
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Common Name: <strong>Mustang</strong>® Prunus <strong>Rootstock</strong><br />
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Origin:<br />
Selected by Dr. Wilbert Ronald and Rick Durand of Jeffries Nurseries<br />
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Advantages:<br />
<strong>Mustang</strong>® has several advantages over other existing rootstocks:<br />
o clonal rootstock with consistent budding results<br />
o minimal suckering from understock (in contrast to P. americana)<br />
o minimal basal suckering (in contrast to P. besseyi)<br />
o fibrous root that provides strong anchorage (in contrast to P. besseyi)<br />
o certified virus free from tissue culture<br />
o wide compatibility across Prunus species<br />
o ease of propagation from softwoods or hardwoods<br />
o cold hardiness for production in zones 2, 3, 4, 5 and 6.<br />
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Propagation:<br />
<strong>Mustang</strong>® has been successfully rooted from 18” hardwood cuttings<br />
using bottom heat for callus development followed by field planting un<br />
der moist west coast conditions. Propagation has also been successful<br />
from summer softwood cuttings. Spring planted, rooted softwood cut<br />
tings have attained budding size by July. Certified Virus Indexed stock<br />
is available in tissue culture.<br />
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Protection:<br />
Propagation by licensed growers only. Canadian TM registered. COPF<br />
Royalty of 20 cents per plant.<br />
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For additional information about <strong>Mustang</strong>® Prunus <strong>Rootstock</strong>,<br />
contact Jeffries Nurseries Ltd.:<br />
P.O. Box 402, Portage la Prairie, Manitoba, R1N 3B7, Canada<br />
Phone: (204) 857-5288 Fax: (204) 857-2877 www.jeffriesnurseries.com<br />
jeffnurs@mts.net