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摘要: 通过不同品种和定植期试验，根据温光对菊花Dendranthema grandiflora品质的影响，初步建立了以生理辐热积（PTEP）为尺度的日光温室多头切花菊外观品质预测模型，并用独立的试验数据对模型进行了检验。结果表明：模型对日光温室多头切花菊株高、展叶数、单株叶面积、茎粗和花径的模拟值与实测值的符合度较好，模拟值与实测值基于1 ∶ 1线的决定系数（R2）和相对预测误差（ERP）分别为0.99，0.99，0.94，0.87，0.92和7.2%，6.9%，10.2%，5.6%，18.2%，模型预测精度较高。图2表3参14Abstract: Based on chrysanthemum quality due to temperature and light differences as well as experiments with different spray cut chrysanthemum cultivars（Mengbai，Qinglu，Cuilian，Hanfen and Lv Fengwo） and planting dates（April，May，and June），a preliminary quality prediction model for solar greenhouse spray cut chrysanthemums with a physiological product of thermal effectiveness and PAR（photosynthetically active radiation） as the measurement scales was developed. The indexes including plant height，leaf number，leaf area of individual plant，stem diameter，flower diameter were observed. The model was then validated with independent data. Simulated results showed that based on a 1 ∶ 1 line，the coefficient of determination （R2） and percent relative prediction error （ERP），respectively，for plant height（0.99，7.2%），leaf number（0.99，6.9%），leaf area （0.94，10.2%），stem diameter （0.87，5.6%），and flower diameter （0.92，18.2%），agreed well with the observed data. This high precision model could supply a theoretical basis for optimizing：1） temperature and light management and 2） a decision support system for production of spray cut chrysanthemums in a solar greenhouse.［Ch，2 fig. 3 tab. 14 ref.］
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链接本文:
https://zlxb.zafu.edu.cn/article/doi/10.11833/j.issn.2095-0756.2010.03.014
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