Evers Jochem B, Vos Jan, Fournier Christian, Andrieu Bruno, Chelle Michael, Struik Paul C
Crop and Weed Ecology, Plant Sciences Group, Wageningen University, Haarweg 333, 6709 RZ Wageningen, the Netherlands.
New Phytol. 2005 Jun;166(3):801-12. doi: 10.1111/j.1469-8137.2005.01337.x.
This paper presents an architectural model of wheat (Triticum aestivum), designed to explain effects of light conditions at the individual leaf level on tillering kinetics. Various model variables, including blade length and curvature, were parameterized for spring wheat, and compared with winter wheat and other Gramineae species. The architectural model enables simulation of plant properties at the level of individual organs. Parameterization was based on data derived from an outdoor experiment with spring wheat cv. Minaret. Final organ dimensions of tillers could be modelled using the concept of relative phytomer numbers. Various variables in spring wheat showed marked similarities to winter wheat and other species, suggesting possibilities for a general Gramineae architectural model. Our descriptive model is suitable for our objective: investigating light effects on tiller behaviour. However, we plan to replace the descriptive modelling solutions by physiological, mechanistic solutions, starting with the localized production and partitioning of assimilates as affected by abiotic growth factors.
本文提出了一个小麦（普通小麦）的结构模型，旨在解释单个叶片水平的光照条件对分蘖动态的影响。对包括叶片长度和曲率在内的各种模型变量进行了春小麦参数化，并与冬小麦和其他禾本科物种进行了比较。该结构模型能够在单个器官水平上模拟植物特性。参数化基于来自春小麦品种Minaret室外实验的数据。利用相对叶龄单元数的概念可以对分蘖的最终器官尺寸进行建模。春小麦中的各种变量与冬小麦和其他物种表现出明显的相似性，这表明构建一个通用的禾本科结构模型是有可能的。我们的描述性模型适用于我们的目标：研究光照对分蘖行为的影响。然而，我们计划从受非生物生长因子影响的同化物的局部产生和分配入手，用生理、机械学方法取代描述性建模方法。
