Apsim next generation wheat
Dordrecht, The Netherlands: Springer.Ītsmon, D., & Jacobs, E. van Laar (Eds.), Scale and complexity in plant systems research: Gene-plant-crop relations. Modelling genotype × environment × management interactions to improve yield, water use efficiency and grain protein in wheat.
The response of photosynthesis and stomatal conductance to rising : Mechanisms and environmental interactions. Triticum aestivum APSIM next generation climate change semi-arid environments water use efficiency.Īinsworth, E. It seems therefore worthwhile to further explore this reduced-tillering trait in relation to a range of different environments and climates, because its benefits are likely to grow in future dry environments where wheat is grown around the world. Whilst long-term average yield advantages were small (ranged from 31 to 51 kg ha -1 year -1 ), across large dryland areas the value is large (potential cost-benefits ranged from Australian dollar 23 to 60 MIL/year). Our climate scenarios show that whilst elevated (e) alone might limit the area where the reduced-tillering trait is advantageous, the most likely climate scenario of e combined with increased temperature and reduced rainfall consistently increased the area where restricted tillering has an advantage. Our results show a small but consistent yield advantage of the reduced-tillering trait in the most water-limited environments both under current and likely future conditions.
We used a spatial analysis approach with a daily time-step coupled radiation and transpiration efficiency model to simulate the impact of the reduced-tillering trait on wheat yield under different climate change scenarios across Australia's arable land. Reducing the number of tillers per plant using a tiller inhibition (tin) gene has been considered as an important trait for wheat production in dryland environments.