This is basically a pear seedling and hence is the equivalent of growing a pear tree on its own roots. ovoidea Rehder (J. Arnold Arbor. It is dwarf itself and has high dwarfing efficiency on most of main Pyrus cultivated species when used as inter-stock. The rootstocks we use for our pear varieties are Pyrus communis and Pyrus ussuriensis. On the basis of these selection criteria, 'Paul' was selected in 1999 and was grafted onto wild Pyrus ussuriensis rootstock. Growth habit is rounded and dense, reaching 40 to 50 feet in height. A vigorous, standard-sized pear rootstock (20-30 feet high) that is adaptable to acidic soils, poor soil conditions and fertility. It produces a strong well anchored Tests & Trials: Tests and trials for 'Paul' were conducted during the 2008 to 2010 growing seasons at Saskatoon Farm, Dewinton, Alberta. The species of major economic importance for fruit production are the Western European pear (Pyrus communis) and five Asian species or interspecific hybrids (P. pashia, P. pyrifolia, P. ussuriensis, P. ×bretschneideri, and P. ×sinkiangensis, which is a complex hybrid involving P. pyrifolia, P. xbretscheideri, P. armeniacifolia, and P. communis. Bright autumn leaf colour. Pyrus ussuriensis ‘MorDak’ (Family: Rosaceae). The pathogen survives from season to season in the roots of infected trees. Growth habit is rounded and dense, reaching 40 to 50 feet in height. Description: Prairie Gem® has a dense rounded habit which produces a blanket of white flowers in spring before the leaves emerge. The phytoplasma population in the aboveground portions of … Form: Dense, rounded and spreading. Pyrus ussuriensis var. Home / Rootstock / Pyrus Betulifolia Pear Rootstock Return to Previous Page. Pear rootstock that is much hardier than P. betulifolia and more fireblight resistant. Foliage: Glossy, dark green rounded leaves. The Pyrus rootstock is used for producing large specimen pear trees. Pear Rootstock - Pyrus ussuriensis. These are hardy and vigorous growers which produce a standard or full-size tree. Has anyone used Pyrus ussuriensis as root stock? Decline is much more prevalent on trees with rootstocks of Pyrus ussuriensis or P. pyricola than on trees propagated on domestic P. communis roots. There were 10 trees of the candidate variety and 3 trees of each reference variety. This is the hardiest of the pears, hardy to USDA Zone 2. I'm currently using wild Pyrus calleryana and looking for alternative options. Height: 8-10m Width: 6-8m Growth Rate: Fast. (For more information on why standard rootstock is important, click here, and read the section titled "Rootstock"). Pyrus calleryana works fine but has proved to be invasive in some areas (not ours) . 6 years ago. is an excellent pear dwarfing rootstock common in China. clarkinks. The foliage is glossy dark green in summer, and reddish-purple or red in the fall. 'Zhongai 1' [(Pyrus ussuriensis × communis) × spp.] Spacing. 1920) is, in fact, a cultivar of Pyrus ussuriensis. Pyrus ussuriensis, or the Ussurian or Harbin Pear. Pyrus ussuriensis is especially popular as an Asian Pear rootstock. Pyrus ussuriensis is the hardiest of the pears. Manchurian Pear - Pyrus ussuriensis Broad, medium sized tree, flowering very early in spring. The foliage is glossy dark green in summer, and reddish-purple or red in the fall. Prairie Gem® Flowering Pear. Autumn Colour: Reds, Purples, Oranges, Yellows. Hardiest of the ornamental pears including other Ussurian pear cultivars. of stock Product Description. It is compatible with all European pear varieties and eventually produces a very large tree - well over 6m / 20ft, and usually very long-lived. Out. Flowers: Clusters of small white flowers in 2: 60. Rootstock. Lustrous dark green leaves turn golden yellow to orange in autumn. Malus Dolgo Rootstock $ 2.90 $ 2.90. It is characterized by its ovoid, subglobose, or ellipsoid fruit, longer fruiting pedicels (2-4 cm) and tomentose leaves and corymb Flowers are 1 1/3 inches in diameter, pinkish buds opening to white flowers, in late spring. An Asian pear rootstock ( 20-30 feet high ) that is adaptable to acidic,... I 'm currently using wild Pyrus calleryana and looking for alternative options and dense, reaching to! Calleryana works fine but has proved to be invasive in some areas ( not )! Growth habit is rounded and dense, reaching 40 to 50 feet in height Asian... Wild Pyrus ussuriensis × communis ) × spp. 'm currently using wild Pyrus calleryana and looking for options... Basically a pear tree on its own roots excellent pear dwarfing rootstock in... The hardiest of the candidate variety and 3 trees of the candidate and... ) × spp. much hardier than P. betulifolia and more fireblight resistant, standard-sized pear rootstock and the... 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