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Table 1 Days to vegetative budbreak in pear cultivars in two locations over two consecutive years (2014–2015)

From: High-resolution genetic linkage map of European pear (Pyrus communis) and QTL fine-mapping of vegetative budbreak time

   Location  
Cultivar Species Bet Dagan Tzuba Chilling requirementa
Gorham P. communis 135.25 Ab 95.75 A High
Beurre Hardy P. communis 134 A 93.5 A High
Harrow Sweet P. communis 115.5 B 85.5 B High
Moonglow P. communis 115.25 B 86.25 B High
Yali P. bretschneideri 115.25 B 83.5 B High
Highland P. communis 114.75 B 84.5 B High
Magness P. communis 114 B 85.5 B High
Abate Fetel P. communis 112.75 B 81.5 B High
Cascade P. communis 112.5 B 85.5 B High
Red Clapp P. communis 111.5 B 83 B High
Bosc P. communis 110.75 B 83.25 B High
37–6 P. communis 102.5 C 71.5 CD Low
Etruska P. communis 102 C 74.25 C Low
Lawson P. communis 101.25 CD 75 C Low
36–7 P. communis 99 CD 72 CD Low
Spadona P. communis 98.5 CD 70.5 CD Low
6-Jan P. communis 97.75 CD 71.5 CD Low
Bon Rouge P. communis 95.25 D 73 C Low
Coscia P. communis 82.75 E 70 CD Low
Gentile P. communis 81.25 E 67.75 DE Low
Florida Home P. communis x P. pyrifolia 67.5 F 63.75 E Low
  1. aHigh chilling requirement > 800 chilling units. Low chilling requirement < 400 chilling units
  2. bLevels in a row followed by different letters are significantly different based on comparison by Student’s t-test