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根据光照辐射和温度对大花蕙兰生长状况的影响,通过‘明月’和‘梦幻’两个品种在两个温室中的试验,建立了以辐热积为指标的温室大花蕙兰生长指标预测模型,并使用独立的试验数据对模型进行检验。结果表明:模型对于大花蕙兰两个品种‘明月’和‘梦幻’母球、子球、孙球植株最长叶长、假鳞茎直径、展叶数的预测值与实际观测值的决定系数(R2)分别高于0.98、0.98、0.95;回归估计标准误差(RMSE)分别低于2.06 cm、0.85 mm、1.21片;预测相对误差(RSE)分别低于4.8%、2.8%、8.8%。表明该模型对以上生长指标的预测精度较高,可为温室大花蕙兰生产中的光照和温度的调控提供理论依据。
According to the effects of light radiation and temperature on the growth of Cymbidium, the greenhouse Cymbidium Greenhouse index was established through the experiments of ’Mingyue’ and ’Fantasy’ in two greenhouses. Predict the model and use independent test data to test the model. The results showed that the coefficient of determination for the predictive value and actual observed value of the maximum leaf length, pseudobulb diameter and leaf number of ’Cymbidium’ and ’Phantom’ (R2) were higher than 0.98, 0.98, 0.95 respectively. The standard error of regression (RMSE) was lower than 2.06 cm, 0.85 mm and 1.21 respectively. The relative error of prediction (RSE) was lower than 4.8%, 2.8% and 8.8% respectively. The results show that the model has higher prediction accuracy for the above growth indexes and can provide theoretical basis for the regulation of light and temperature in the production of Cymbidium greenhouse.