Dynamics of Fruit Development and Modeling of Ruanzhidahong Dragon Fruit
The study investigated the dynamic changes in four growth parameters during fruit development of Ruanzhidahong dragon fruit grown in the Yangtze River Delta region.The growth parameters were horizontal and vertical diameter,fresh and dry weight.Four growth equations(Logistic,Gompertz,Richards,cubic polynomial)were chosen to establish fruit growth models using physiological development time(PDT)as the scale.The appropriate mathematical models for each parameter were determined based on the fitting results and validated using independent data.The results indicated that cubic polynomial was appropriate for the dynamic changes of horizontal and vertical diameters,while Logistic equation was suitable for determining the fresh and dry weights of Ruanzhidahong fruits.The R2 values for all fitted models exceeded 0.98.The model's test results indicated that the relative root mean square error(RRMSE)for horizontal and vertical diameter,fresh and dry weight was less than 15%,demonstrating a successful simulation.Therefore,the models obtained in this study demonstrate high predictive accuracy for growth parameters of Ruanzhidahong dragon fruit.They can be served as a theoretical foundation for cultivation management of this variety in the Yangtze River Delta region.
Dragon fruitRuanzhidahongGrowth indicatorsSimulation modelPhysiological development time(PDT)
国家科技期刊平台
NSTL
万方数据
