关键词: 切花百合, 光温指数, 生育期, 模型

Abstract: [Objective] The aim of this study was to accurately predict the harvest period of cut lily. [Method] Based on photo-thermal responses of cut lily,experimental data from different planting dates were used to develop a model for development of Lilium Oriental Hybrids cv. ‘Sorbonne’.Then,the model was tested by independent experimental date. [Results] The results showed that root mean squared error (RMSE)between simulated and observed data (planting,sprouting,leaf unfolding,visible bud and harvest)were 1.58,2.23,2.54 and 1.58,respectively.Compared with effective accumulated temperature method (RMSE 4.74,3.54,6.21 and 5.38),the development model based photo-thermal index increased the simulation accuracy significantly. [Conclusion] The model developed in this study can provide a theoretical foundation for predicting the harvest period of cut lily.

Key words: cut lily, photo-thermal index, development stage, model