Table 2. Functions and equations used in process-based model (Cesaraccio et al., 2004; Cesaraccio et al., 2005) to predict bloom dates. t₂: bloom date, t₁: start date of forcing accumulation, t₀: start date of endodormancy; R_c: chilling rate, R_f: forcing rate, S_c: state of chilling, S_f: state of forcing, C^*: chilling requirement, F^*: forcing requirement, T_B: base temperature, T_x: daily maximum temperature, T_m: daily mean temperature, T_n: daily minimum temperature.

Equation
Sc(t)=∑t0tRc(Tx,Tm,Tn)Sc(t1)=C*	RC(Tx,Tm,Tn)={ 00≤TB≤Tn≤Tx−(Tm−Tn)+(Tx−TB)22(Tx−Tn),0≤Tn<TB≤Tx−(Tm−Tn)0≤Tn≤Tx≤TB−Tx22(Tx−Tn)Tn<0<Tx≤TB−Tx22(Tx−Tn)+(Tx−TB)22(Tx−Tn),Tn<0≤TB<Tx0Tx<0
Sf(t)=∑t1tRf(Tx,Tm,Tn)Sf(t2)=F*	Rf(Tx,Tm,Tn)={ 0, Tx<TBTm−TB,TB<Tn(Tx−TB)22(Tx−Tn),Tn≤TB≤Tx