In the original publication of this article, there were symbol errors in Equations 1 and 2. The below equations are the corrected versions:
(1) 
$${\rm GDD}\, {\equals}\, \left[ {\left( {T_{{{\rm max}}} {\plus}T_{{{\rm min}}} } \right)/{\rm 2}} \right]\, {\minus}\, T_{{{\rm base}}} $$
$${\rm GDD}\, {\equals}\, \left[ {\left( {T_{{{\rm max}}} {\plus}T_{{{\rm min}}} } \right)/{\rm 2}} \right]\, {\minus}\, T_{{{\rm base}}} $$
(2)
$${\rm CDD }\, {\equals}\, T_{{{\rm base}}} \, {\minus}\, \left[ {\left( {T_{{{\rm max}}} {\plus}T_{{{\rm min}}} } \right)/{\rm 2}} \right]$$
$${\rm CDD }\, {\equals}\, T_{{{\rm base}}} \, {\minus}\, \left[ {\left( {T_{{{\rm max}}} {\plus}T_{{{\rm min}}} } \right)/{\rm 2}} \right]$$
The authors regret these errors.
