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用logistic方程的三次多项式修正模型R=0.18/[1+exp(—2.3944+0.738846T—0.04276T~2+0.000637073T~3))来描述稻(根)象甲蛹的发育速率与温度的关系,配合蛹完成发育的模型。J。R[T(t)]dt=1,能很好地模拟该蛹的发育进程。该蛹在不同温度下发育速率的瞬时变化是一条连续变化的曲线。其曲线方程V=dR/dt=—0.18·A·e~x/(1+e~x)~2,其中A=0.738846—0.08552T+0.001892T~2,x=—2.3944+0.738846T—0.04276T~2+0.000637073T~3。由曲线方程推导求得蛹的发育起点为11.63℃。
The relationship between the developmental rate of rice (root) elephantiasis and temperature was described by the cubic polynomial correction model of logistic equation R = 0.18 / [1 + exp (-2.3944 + 0.738846T-0.04276T ~ 2 + 0.000637073T ~ 3) , With pupae to complete the development of the model. J. R [T (t)] dt = 1, which can well simulate the pupa developmental process. The pupae at different temperatures, the instantaneous rate of development is a continuous change in the curve. The curve equation V = dR / dt = -0.18 · A · e ~ x / (1 + e ~ x) ~ 2, where A = 0.738846-0.08552T + 0.001892T ~ 2, x = -2.3944 +0.738846T-0.04276 T ~ 2 + 0.000637073T ~ 3. Derived from the curve equation derived pupa development starting point of 11.63 ℃.