Nitrogen-mediated flowering time and nitrogen use efficiency in rice

Nitrogen use efficiency (NUE) is critical for the sustainable development of agricultural production. Plant NUE as an inherently complex, including N uptake, translocation, assimilation, and remobilization, is governed by multiple interacting genetic and environmental factors. High nitrogen (N) fertilization for maximizing crop yield commonly leads to postponed flowering time (heading date in rice) and ripening, thus affecting resources use efficiency and followed planting time. The seminar will introduce general views on multiple concepts and changes of NUE in temporal and space, the strategies for increasing crop NUE. The genetically controlled diversity of N fertilization effects on rice flowering time, both N uptake and physiological use efficiency, and their preliminary molecular mechanism will be presented in the presentation.