The optimal combination of yield and quality of hemp fibres from field grown crops is around flowering.
Therefore prediction of flowering time would support in planning production and optimization of the
cultivar choice for different agro-ecological zones. In the current paper the validation of a recently published
model (Amaducci et al., 2008a) is carried out for four varieties across a wide range of sites and thus
of air temperature–photoperiod combinations. The model was evaluated by comparing its output to field
observations of the duration between emergence and 50% flowering. The model output and observed
times from emergence to 50% of flowering generally corresponded well, but some discrepancies were
apparent. The biggest discrepancies between estimates and actual data were observed at extreme latitudes.
The level of accuracy of the model predictions is satisfactory for strategic decision regarding sowing
and harvesting time and cultivar choice, but tactical decisions (e.g. time of harvest based on flowering
time) cannot be accurately supported.
|Numero di pagine||11|
|Rivista||Industrial Crops and Products|
|Stato di pubblicazione||Pubblicato - 2012|