Applicability of estimation models for peach chilling and heat requirements in Guil-in area
Two models of chilling requirements and two models of heat requirements were used to estimate the chilling and heat requirements of 28 different peach varieties in 2017 to 2021.The inter-annual relative stand-ard deviation(RSD)of the estimation results of each model was analyzed to evaluate the applicability of differ-ent estimate models for peach chilling and heat requirements in Guilin area.The results showed that the aver-age RSD of floral bud chilling requirement of peach estimated by 7.2 ℃ model and Utah model were 27.6％and 24.1％,respectively,showing poor applicability.The average RSD of floral bud heat requirement of peach estimated by growing degree hours model and effective accumulated temperature model were 19.1％and 19.6％,respectively,with poor applicability.There was no significant correlation between chilling and heat re-quirements.
万方数据
维普
