Modelling of temperature-controlled internode elongation applied to chrysanthemum.

ABSTRACT: The DIF concept states that equal internode length can be achieved with the same difference between day and night temperature irrespective of the mean 24 h temperature. However, the physiological background of the DIF concept is unclear. An attempt to model internode elongation is presented based on three plausible processes, namely (1) the accumulation of elongation requirements during the day, (2) elongation during the night using elongation requirements and (3) the limitation of internode length due to low turgor pressure unable to counter cell wall elasticity. Each reaction rate constant, one per process, depends on temperature according to Arrhenius' Law. The resulting process-based model describes internode elongation in time and was calibrated on a chrysanthemum data set. Chrysanthe

SUBMITTER: Schouten RE 

PROVIDER: S-EPMC4240396 | biostudies-literature | 2002 Sep

REPOSITORIES: biostudies-literature