Determination on Three Equilibrium Parameters in Model on Winter Wheat Photosynthate Distribution and Transformation
From the morphological characteristics of crop growth, the mechanism model of photosynthate distribution based on the dynamic relationship between root, shoot, leaf and grain is proposed in this paper. And the method of the determining model parameters with the field experiment data is proposed. The root-cap growth equilibrium coefficient, the shoot-leaf growth equilibrium coefficient and the grain-shoot growth equilibrium coefficient is obtained by the nonlinear program according to the measured dry matter of the winter wheat root, shoot, leaf and grain in 2008 in the irrigation experiment station of Tianjin Agricultural University and the objective function of the minimum .. absolute error sum on the simulated and measured dry weight. And they are verified by the winter wheat measured data in 2009. The results show that the root-cap growth equilibrium coefficient is most affected by environmental factors, the second, is the shoot-leaf growth equilibrium coefficient, the grainshoot growth equilibrium coefficient is least affected by environment factors.
mechanism model winter wheat equilibrium coefficient environment factor
Li Yan Wang Yang-ren Chi Dao-cail
Hydraulic Institute,Shenyang Agricultural University,Shenyang, China Hydraulic Engineering Departme Hydraulic Engineering Department,Tianjin Agricultural University,Tianjin, China Hydraulic Institute,Shenyang Agricultural University,Shenyang, China
国际会议
山东淄博
英文
318-322
2011-05-27（万方平台首次上网日期，不代表论文的发表时间）