Chill unit models for blackcurrant (Ribes nigrum L.) cultivars 'Ben Gairn', 'Ben Hope' and 'Ben Tirran'

Rose, G. A. and Cameron, R. W. F. (2009) Chill unit models for blackcurrant (Ribes nigrum L.) cultivars 'Ben Gairn', 'Ben Hope' and 'Ben Tirran'. Scientia Horticulturae, 122 (4). pp. 654-657. ISSN 0304-4238 doi: 10.1016/j.scienta.2009.06.029

Abstract/Summary

Temperate-zone crops require a period of winter chilling to terminate dormancy and ensure adequate bud break the following spring. The exact chilling requirement of blackcurrant (Ribes nigrum), a commercially important crop in northern Europe, is relatively unknown. Chill unit models have been successfully utilized to determine the optimum chilling temperature of a range of crops, with one chill unit equating to I h exposure to the optimum temperature for chill satisfaction. Two-year-old R. nigrum plants of the cultivars 'Ben Gairn', 'Ben Hope' and 'Ben Tirran' were exposed to temperatures of -10.1 degrees C. -3.4 degrees C. 0.1 degrees C, 1.5 degrees C, 2.1 degrees C, 3.4 degrees C or 8.9 degrees C (+/- 0.7 degrees C) for durations of 0, 2, 4, 6, 8 or 10 weeks and multiple regression analyses used to determine the optimum temperature for chill satisfaction. (C) 2009 Elsevier B.V. All rights reserved.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/9117
Item Type	Article
Refereed	Yes
Divisions	Life Sciences > School of Biological Sciences Life Sciences > School of Agriculture, Policy and Development
Uncontrolled Keywords	Ribes nigrum, Dormancy, Chilling, Phenology, Growth stage, rest completion, temperature, dormancy, apple, requirements, photoperiod, phenology, budbreak, growth, peach
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