卡拉卡拉红肉脐橙生长发育动态数学模型的建立

Mathematical Simulation in the Growth Development of Cara Cara Red Navel Orange

以卡拉卡拉红肉脐橙为材料,采用威布尔频数分布、幂函数分布、S曲线分布、对数回归等变量回归模型对其花、叶、果实、新梢等生长量动态变化规律,叶片含氮量、叶片的增大与脱落、果实增大的年周期变化规律,以及生长量与经济产量的关系等进行进行了研究,结果表明:卡拉卡拉红肉脐橙花、果量的动态变化规律可用威布尔频数分布拟合,新稍横径增大量与时间呈幂函数关系,果实增大量呈S曲线分布,春梢叶片氮含量呈修正指数函数曲线关系,新稍的翌年花量与果量呈对数曲线函数关系。

Cara Cara red navel orange（ Citrus sinensis（ L.） Osbeck） was used as material and variable regulation models, including Weibull frequency distribution model, power function distribution model, ＂ S＂-curve distribution model and logarithmic regression model, were adopted in this research to study the dynamic laws of growth of flowers,leaves, fruits and shoots, to study the periodic changing laws of nitrogen content in leaves, leaves size-increasing and falling and fruit development, and to analyze the relationship between growth and yields. Results showed that the dynamic changes of flower and fruit numbers of Cara Cara red navel orange could be modeled with Weibull frequency distribution;the development of fruit size presented ＂ S＂ curve; while nitrogen content in spring leaves presented modified exponential distribution; the diameters of spring and autumn shoots were both highly correlated with developmental time,which could be described by power function distribution models respectively; the relativity of flower numbers and fruit numbers of shoots in the following year could be described by logarithmic regression model.