Pyrus × bretschneideri

Not to be confused with Chinese pear (Pyrus pyrifolia).
Chinese White Pear
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Rosales
Family: Rosaceae
Genus: Pyrus
Species: P. × bretschneideri
Binomial name
Pyrus × bretschneideri
Rehder
Chinese White Pear Flower

Pyrus × bretschneideri (or Pyrus ×bretschneideri), the ya pear or Chinese white pear[1] (白梨 bái lí), is an interspecific hybrid species of pear native to northern China, where it is widely grown for its edible fruit. Recent molecular genetic evidence confirms some relationship to the Siberian pear (P. ussuriensis), but it can also be classified as a subspecies of the Chinese pear (P. pyrifolia).

Along with cultivars of P. pyrifolia and P. ussuriensis, the fruit is also called the nashi pear.[2]These very juicy, white to light yellow pears, unlike the round Nashi pears (P. pyrifolia) that are also grown in eastern Asia, are shaped more like a European pear, narrow towards the stem end. “Ya Li” (鸭梨, pinyin yā lí), literally translated as "Duck Pear" due to its mallard-like shape, is one cultivar widely grown in China, and exported around the world. Ya pears taste similar to a mild Bosc pear, but are crisp, with a higher water content and lower sugar content.

Further hybridization

Breeding programs have created cultivars that are the products of further hybridizing P. ×bretschneideri with P. pyrifolia.[3] Under the International Code of Nomenclature for algae, fungi, and plants, such backcross hybrids are named within the species P. ×bretschneideri.[4] Cultivar 'PremP109', also called 'Prem 109' is such a hybrid, marketed under the trade mark Papple.[5]

References

Wikimedia Commons has media related to Pyrus bretschneideri.
  1. ↑ "USDA GRIN Taxonomy".
  2. ↑ NSW Primary Industries 2002. Nashi asian pear varieties. Agfact H4.1.14
  3. ↑ US 20120185978, Allan White, "Pear tree named 'PREM 109'", published Jul 19, 2012, assigned to Allan White
  4. ↑ McNeill, J.; Barrie, F.R.; Buck, W.R.; Demoulin, V.; Greuter, W.; Hawksworth, D.L.; Herendeen, P.S.; Knapp, S.; Marhold, K.; Prado, J.; Prud'homme Van Reine, W.F.; Smith, G.F.; Wiersema, J.H.; Turland, N.J. (2012). International Code of Nomenclature for algae, fungi, and plants (Melbourne Code) adopted by the Eighteenth International Botanical Congress Melbourne, Australia, July 2011. Regnum Vegetabile 154. A.R.G. Gantner Verlag KG. ISBN 978-3-87429-425-6. Article H.4
  5. ↑ "Papple TM brand Pears". Associated International Group of Nurseries (AIGN). Retrieved 14 February 2014.