Fifty Years of Pear Breeding: An Overview of the Harrow (Ontario, Canada) Pear Breeding Program

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The ‘Harrow’ (Ontario, Canada) pear breeding program was initiated in 1962 to develop fire blight resistant pear selections for the fresh and processing markets. Six cultivars have been introduced for commercial production in Canada, some of which have been protected and introduced in Europe. Several additional selections have been protected in Canada and will be introduced in the near future. Two cultivars have been protected, named and introduced to the European market. All selections and introductions have good to excellent resistance (but not immunity) to natural fire blight infections.

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Hunter DM, Pinsonneault P, Kappel F, Quamme HA, Bonn WG, Layne REC. 1992. ‘Harrow Sweet’ pear. HortScience 27:1331-1334.

Hunter DM, Kappel F, Quamme HA, Bonn WG. 2002a. HortScience 37:224-226.

Hunter DM, Kappel F, Quamme HA, Bonn WG. 2002b. HortScience 37:227-229.

Hunter DM, Kappel F, Quamme HA, Bonn WG, Slingerland KC. 2009. ‘Harovin Sundown’ pear. HortScience 44:1461-1463.

Layne REC, Quamme HA. 1975. Pears. In: Janick J, Moore JN (Eds), Advances in Fruit Breeding. Purdue University Press, West Lafayette, IN, USA. 38-70.

Quamme HA, Spearman GA. 1983. ‘Harvest Queen’ and ‘Harrow Delight’ pear. HortScience 18: 770-772.

Van der Zwet T, Oitto WA, Brooks HA. 1970. Scoring system for rating severity of fire blight in pear. Plant Disease Reporter 54:835-839