A high yield potential ideotype for irrigated rice: Rice plant types with short culms and long, upright leaves

Abstract

Enhancing crop yield can be achieved through two combined approaches: increasing photosynthetic biomass productivity and efficiently transferring photosynthetic products to the harvestable organs. Dwarfing has become a significant breeding objective due to benefits such as lodging resistance, improved grain allocation of photosynthetic products, and high nitrogen use efficiency. However, the commonly used gibberellic acid-deficient dwarf mutation (sd1) reduces leaf area and increases leaf area density, impeding photosynthetic biomass production.