The study looked at how the number of seedlings planted per hill affects the yield and quality of different types of mechanical-transplanted rice. They tested three types of rice with small, medium, and large panicles. They found that increasing the number of seedlings per hill led to more panicles per plant but fewer grains per panicle and lower grain weight. The highest yield was achieved with 4 seedlings per hill for small panicle rice, 3 for medium panicle rice, and 2 for large panicle rice. As the number of seedlings increased, the rice became more chalky, with higher amylose content but lower quality. The rice also showed changes in viscosity and gel consistency. To balance high yield and quality, they recommend planting with specific numbers of seedlings per hill based on the panicle type.