Breeding method of rice two-line sterile line with excellent characters

The invention belongs to the technical field of rice breeding, and particularly relates to a breeding method of a rice two-line sterile line with excellent characters. The breeding method comprises the following steps of: taking a rice two-line sterile line (one line has two purposes) and a rice blast-resistant high-quality male parent as hybrid parents for matching, planting the two-line sterileline in a sterile period and a fertile period under different light and temperature conditions, identifying the rice quality, rice blast resistance, sterility and fertility of multiple generations, screening comprehensive characters and screening sterile starting point temperature, and breeding the excellent rice two-line sterile line with excellent rice quality, stable sterility, good combining ability and high reproduction, seed production and hybrid yield. The sterile line is easy to produce seeds, the matched hybrid seeds have strong vitality, the hybrid combination has good rice blast resistance, the rice appeara