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向日葵最优密度与最高产量相关性的研究,具有理论和实践应用的意义。笔者根据自已试验的结果,进行了模型的设计和数理推导、提出了向日葵群体的单产与密度数量关系方程。Y=axe~(bx)并分析了式中系数a、b的生物学意义。在实际应用中,根据向日葵品种和栽培条件因素确定系数,建立单株产量密度方程,确立群体最佳密度时可能达到的平均单株产量和最高产量的公式:xopt=1/-b、yxopt=a/e、Ymax=a/e、xopt。 为了验证最优关系方程的可靠性,笔者又将国内外不同学者的试验结果代入模式中,进行了对比分析。结果认为模型确定的最佳密度和最高单产具有较大的概率,可以在生产中推广与应用。
Sunflower optimal density and the highest yield correlation research, with theoretical and practical significance. Based on the results of self-test, the author carried out the model design and mathematical derivation, and proposed the relationship between yield and density of sunflower population. Y = ax ~ (bx) and analyze the biological significance of the coefficient a, b in the formula. In practice, according to the sunflower varieties and cultivation conditions to determine the coefficient of factors, the establishment of single plant yield density equation, the establishment of population density can reach the highest average yield per plant and the formula: xopt = 1 / -b, yxopt = a / e, Ymax = a / e, xopt. In order to verify the reliability of the optimal relational equation, the author also put the test results of different scholars at home and abroad into the model, conducted a comparative analysis. The results show that the model to determine the optimal density and the highest yield with a greater probability, can be promoted in the production and application.