|
|
|
|
|
| Chenu, K.; Fournier, C.; Andrieu, B.; Giauffret, C.. |
| In maize, grain yield is highly associated with light interception and photosynthetic activity during grain filling. In Europe, this period typically occurs when solar radiation is already decreasing and water availability may be limiting. The improvement of cold-tolerance is a major challenge for maize production because earlier sowing would allow a better fit between crop cycle and availability of natural resources. Low temperatures have a major impact on (i) radiation interception through the modification of foliage development and (ii) radiation use efficiency (RUE) through the reduction of leaf photosynthetic activity. Little is known about the specific contribution of each of these traits to the lower biomass production under cold conditions and... |
| Tipo: Conference proceedings |
|
| Ano: 2007 |
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1306 |
| |
|
|
| Fournier, C.; Andrieu, B.; Buck-Sorlin, G.; Evers, J.B.; Drouet, J.L.; Escobar-Gutiérrez, A.J.; Vos, J.. |
| The Gramineae have been a pioneer group among non-woody plants to be modelled with the approach of functional-structural plant modelling (FSPM). During the past decade, models have focussed on morphological aspects of plant development. They now provide crop scientists with general guidelines for building new cereal models. We present some of them here, considering the different aspects of cereal architectural modelling: plant development, pattern formation and plant geometry. We also review some significant examples that illustrate the different types of uses of these models for agronomic research. We conclude that the next generation of cereal models should be based on a less empirical modelling of the processes that control morphogenesis. |
| Tipo: Conference proceedings |
|
| Ano: 2007 |
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1381 |
| |
|
|
| Chelle, M.; Andrieu, B.. |
| Virtual plants describe functionally and geometrically plants as sets of interconnected organs. As many plant processes are driven by light, virtual plants require the estimation of the light absorbed by each organ. This has motivated the development of dedicated light models taking profit from the 3D geometry provided by virtual-plant models. We first introduce the principles governing the physical interactions between light and a plant canopy. We then review operational models, including fast methods that have been developed for calculating sun and sky light intercepted by plant organs. Such methods may be used for the simulation of processes depending on the UV or PAR radiations. Models taking into account the multiple scattering between plant elements... |
| Tipo: Conference proceedings |
|
| Ano: 2007 |
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1373 |
| |
|
|
|
