The whole growth period of double cropping late rice in the middle and lower reaches of the Yangtze River is 113.1 days, 5.3 days earlier than that of the control Wuyou 308. The plant height is 99.6 cm, the spike length is 22.5 cm, the effective spikes per mu are 206000, the total grains per spike are 144.1, the seed setting rate is 84.1%, and the 1000 grain weight is 25.7 g. Main indicators of rice quality: head rice rate of 68.1%, chalky grain rate of 7.0%, chalkiness of 2.1%, amylose content of 13.8%, gel consistency of 70 mm, length width ratio of 3.3, reaching the second level of the standard of "Quality of Edible Rice Varieties" in the agricultural industry.

The plant type is compact, the plant height is moderate, the stem toughness is good, the tillering force is strong, the foot leaves at the base are more, and the growth potential is strong. The blade is green, the sword leaf is medium long and straight, and the leaf is under the grass. The panicle layer is regular, the panicle type is medium, the panicle neck node is short, and the grains are uniform. The grain is long, with purple lemma tip and short awn on some grains. The late maturity is better. In the regional test, 224000 effective ears per mu, 99.8cm plant height, 21.7cm ear length, 130.3 grains per ear, 106.3 grains per ear, 81.6% seed setting rate, and 25.74g 1000 grain weight. The whole growth period is 118.0 days, 0.9 days longer than Jinyou 207. From 2013 to 2014, he participated in the regional test of late rice varieties in Hubei Province. The rice quality was determined by the Food Quality Supervision, Inspection and Testing Center (Wuhan) of the Ministry of Agriculture. The rice yield was 82.3%, the head rice rate was 62.8%, the chalky grain rate was 23%, the chalkiness was 5.6%, the amylose content was 24.7%, the gel consistency was 30 mm, and the length width ratio was 3.4.

After being approved, the annual sales volume of one million catties will remain prosperous, making it an ideal variety for large-scale promotion of main varieties in southern double cropping rice regions, selected as the main variety for centralized seedling raising in early rice government procurement in Hunan Province, the national reserve variety for disaster relief and famine preparedness, the main variety for direct seeding after spring and summer floods in the middle and lower reaches of the Yangtze River, and the ideal variety for simplified cultivation of direct seeding after wheat stubble in the Huaihe River basin.

A new type of maintainer line and a pair of male sterile lines were bred by using a rice blast resistant maintainer line Digu B, an early maturing high-quality Yue 4B and a high-quality conventional rice.

Innovative technology is applied to the breeding of multiple excellent maintainer line germplasm materials by polymerization hybridization and multiple generations of backcross selection with male sterile lines

Since 2015, high-quality and high-yield early hybrid rice Aofuyou 655 has been successively bred and approved by Guangxi, high-quality early maturing late indica rice Aofuyou 383 has been approved by Hubei Province, high-quality and disease resistant late maturing middle rice Aoyou 818 has been approved by Guizhou, and Aofuyou 899 has entered the early maturing late indica continuous test and production test in Hubei Province, which will be approved in early 2017. Increasing the approval and promotion of new varieties of Aofuyou series will effectively solve the problems of long maturity and poor rice quality of early and late indica hybrid rice in China. The market development, promotion and application prospects are broad.