温室黄瓜果实鲜质量非破坏性测定方法研究

Study on Non-destructive Determination Method of Fresh Weight in Greenhouse Cucumber

以研究温室黄瓜果实鲜质量的非破坏性测定方法为目的,对不同播期试验数据进行处理,构建了温室黄瓜果实鲜质量与果径、果长的经验性模型。结果表明,模型Ⅰ(FW=0.7008×FD2×FL,其中FW为果实鲜质量,FD为果实直径,FL为果实长度)的模拟值与实测值的相关系数和回归估计标准误差分别为0.95和24g,模型Ⅱ[FW=2.1201×(FD2×FL)0.7901]的模拟值与实测值的相关系数和回归估计标准误差分别为0.91和40g。模型Ⅰ能够更好地模拟黄瓜果实鲜质量,同时具有参数少,易于应用的特点。

Two regress models which described the relationship between cucumber fruit fresh weight and fruit volume were developed through three different sow date experiments. The result showed that model I simulated results agreed well with measured ones. When using the model I, the coefficient of determination （R2） and the root mean squared error （RMSE） between simulated and measured fruit fresh weight based on the 1∶1 line are 0.95 g and 24 g; when using the model II, the coefficient of determination （R2） and the root mean squared error （RMSE） between simulated and measured fruit fresh weight based on the 1∶1 line are 0.91 g and 40 g. Using model I to predict the fruit fresh weight can significantly increase the prediction accuracy.