Chilling Requirements of Apple and Pear Cultivars

Authors

  • K. Ghariani Author
  • R. L. Stebbins Author

DOI:

https://doi.org/10.71318/apom.1994.48.4.215

Abstract

The chilling requirements of 43 apple and 38 pear cultivars were estimated over a two year period (1990-92), by weekly sampling and forcing field-grown shoots. The results were expressed in terms of chill units (CU). In apples, the estimates ranged from 490 CU ± 1 for ‘Dorsett Golden’ to 1320.5 CU ± 8 for ‘Cortland,’ ‘Marshall McIntosh’ and ‘Starking Delicious.’ In pears, the estimates ranged from 749 CU ± 9 for ‘Batjarka’ to 1320.5 CU ± 8 for 'Poirier Fleurissant Tard.’

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Published

1994-10-01

Issue

Vol. 48 No. 4 (1994)

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How to Cite

Chilling Requirements of Apple and Pear Cultivars. (1994). Journal of the American Pomological Society, 48(4), 215-222. https://doi.org/10.71318/apom.1994.48.4.215