Agronomic and physiological characteristics of high yield and nitrogen use efficient varieties of rice: Comparison between two nearisogenic lines

Increasing the application of nitrogen fertilizer is the main approach to increase rice production, but it also brings problems of environmental pollution and in- creases agricultural production costs. Cultivating high-yielding and high nitro- gen use efficiency (NUE) rice varieties is an important approach to solving this problem. The rice varieties carrying dep1 (dense and erect panicle 1) have both high grain yield and high NUE. However, their plant traits have not been fully explored. In...