Validation and evaluation of a mechanistic model of phasic and phenological development of wheat.
Validation and evaluation of a mechanistic model of phasic and phenological development of wheat.
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发表时间：
2000
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通讯作者：
Yang MeiChun;Cao Weixing;Li Cundong;Wang Zhaolong
中科院分区：
文献类型：
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作者：
Yang MeiChun;Cao Weixing;Li Cundong;Wang Zhaolong
不同小麦(Triticum L.)田间试验的三组数据利用中国和美国的品种和播期对小麦发育机理模型的性能进行了检验。结果表明，大部分物候期和物候期的绝对预报误差在0~5d内，均方根误差一般在5d以内。该模型具有较高的精度和较低的误差，特别是对出苗、分蘖、雄蕊萌发和抽穗期的预测，反映了机理和预测水平的提高。
Three sets of data from the field experiments with different wheat( Triticum L. ) varieties and sowing dates in China and USA were used to test the performance of the mechanistic model of wheat development. The results showed that the absolute prediction errors for most phasic and phenological stages ranged within 0 - 5 days, and the root mean square errors were generally less than 5 days. The model was of high accuracy and low error especially for emergence, tillering, stamen and pistil initiation, and heading stages, reflecting an enhanced level of mechanism and prediction.