| 水稻计算机模拟模型及其应用之五 估算水稻产量成分和库产量的模拟模型 |
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| 引用本文： | 金之庆,高亮之,李林.水稻计算机模拟模型及其应用之五 估算水稻产量成分和库产量的模拟模型[J].中国农业气象,1990,11(2):20. |
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| 作者姓名： | 金之庆 高亮之 李林 |
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| 作者单位： | 江苏省农业科学院,江苏省农业科学院,江苏省农业科学院, |
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| 摘 要： | 根据长江流域优质、高产水稻新品种气候生态鉴定试验(1985～1986)的穗粒资料和同期气象资料,分别对单位面积上的有效穗数、每穗粒数和结实率的形成建立了相应的数学模型。决定有效穗数的重要气象因子是分蘖期的日照百分率和平均温度。决定每穗粒数的重要因子是出苗一抽穗的生育期长度与有效穗数。决定结实率的重要气象因子则是抽穗前15天至抽穗后25天的日照百分率和平均极端最高和最低温度。在建立“库”产量模型时,假定千粒重是稳定的品种特性,空粒率是限制“库”产量的因子而秕粒率的形成则与“源”产量不足有关。模拟值与试验值之间有较好的一致性。
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| 关 键 词： | NULL |
Rice Computer Simulation Model (RICEMOD) And Its Applications-Part 5 A SIMULATION MODEL TO EVALUATE SINK YIELD AND ITS COMPONANTS OF RICE PLANT |
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| Jin Zhiqing,Gao Liangzhi and Li Lin.Rice Computer Simulation Model (RICEMOD) And Its Applications-Part 5 A SIMULATION MODEL TO EVALUATE SINK YIELD AND ITS COMPONANTS OF RICE PLANT[J].Chinese Journal of Agrometeorology,1990,11(2):20. |
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| Authors: | Jin Zhiqing Gao Liangzhi and Li Lin |
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| Institution: | Jiangsu Academy of Agricultural Sciences |
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| Abstract: | In terms of the data from the Rice Climatic-Ecological Experiment conducted in the Yangtze Valley (1985—1986) , and the meteorological data during the same period, 3 mathematical models for the number of panicles per unit land area, the number of grains per panicle and, tne numoer of filled-grains percentage were built, respectively. The total hours of sunshine duration and the mean temperature during the tillering stage are the most importana meteorological factors for the effective panicle formation. The length in days from emergence to heading and the effective panicle number are important determinants of grain number per panicle. As to the number of filled-grians percentage, the total sunshine duration in hours and the mean maximum and minimum temperature during the period covering 15 days before and 25 days after heading are the determinants. A sink yield model was also developed, based On the following assumpation, i. e. , the 1000-grain weight was considered as one of the stable varirtal characteristics and the empty grains percentage was the limiting factor to the sink yield. This means the formation of partial filled grains percentage relates to the shortage of source yield. A good agreement has been found between the simulated results and the experimental data. |
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| Keywords: | Simulation Model Sink Yield Yield Component |
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