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The optimum temperature for long-season cropping in the everbearing strawberry 'Everest'

Wagstaffe, A. and Battey, N. H. (2006) The optimum temperature for long-season cropping in the everbearing strawberry 'Everest'. In: Waite, G. (ed.) Proceedings of the Vth International Strawberry Symposium. Acta Horticulturae. International Society Horticultural Science, Leuven 1, pp. 45-49. ISBN 9066054999

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The prolonged season of everbearing strawberries causes vegetative growth and fruiting to coincide, so the influence of the environment on the balance of assimilate partitioning between vegetative and reproductive growth is important for optimised long-season production. Fruiting patterns were evaluated over three seasons for the everbearing strawberry 'Everest'. A range of temperatures (15-27 degrees C) was studied in the first season to establish a temperature response curve. Detailed transfer treatments in the second and third seasons gave insight into heat-induced cropping troughs ('thermo-dormancy'). The detrimental effect on yield of thermo-dormancy was prevented by cool night-time temperature during the periods of heat stress, a treatment that resulted in the largest total fruit fresh weight and overall yield. The highest yields were recorded for plants grown between 18 and 23 degrees C. At higher temperatures fruit number increased, but fruit weight decreased. The importance of night-time temperature in optimising long-season fruit production has significance for commercial production, in which protected cropping tends to increase average temperature through the season.

Item Type:Book or Report Section
Divisions:Life Sciences > School of Biological Sciences
ID Code:10247
Uncontrolled Keywords:day-night temperature integral, thermo-dormancy, assimilate partitioning, CHILLING HISTORY, CULTIVARS, PHOTOPERIOD, GROWTH, INITIATION, ELSANTA
Publisher:International Society Horticultural Science

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