1.Biomass distribution pattern is widely recognized as a strategy for plant to adapt to adverse environments and accordingly directs crop architectural development and resource utilization.Dryland wheats experienced a long-term natural selection and artificial domestication on the basis of their wild relatives;however, its evolutional trend of biomass distribution and ecological mechanism remain unknown.We therefore propose a hypothesis that upward shift of biomass from the root system to the aboveground part may act as a critical ecological indicator of optimized energy allocation, water use and yield formation in long-term evolutionary program of dryland wheats.
dryland wheat biomass shift water use yield formation evolution
State Key Laboratory of Grassland Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanz State Key Laboratory of Grassland Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanz Eastern Cereal and Oilseed Research Centre (ECORC),Agriculture and Agri-Food Canada, Ottawa K1A0C6, School of Earth and Environment, and UWA Institute of Agriculture, The University of Western Austral Bioengineering Institute of Ningxia University, Yinchuan, Ningxia Hui Autonomous Region 750021, Chin