Detailed Introduction to the Boyou 122 Rice Variety

Boyou 122 is a weakly photoperiod-sensitive hybrid rice combination developed by the Rice Research Institute of the Guangdong Academy of Agricultural Sciences by crossing Bo A with Guanghui 122.

In the two years 1997-1998, it participated in the provincial late-season rice regional trial, with yields of 415kg/667m2 and 481kg/667m2 respectively. In 1997 it yielded 0.24% less than the control Boyou 64, and in 1998 it yielded 7.6% more than the control Boyou 903. Its rice appearance quality was rated as late-season rice grade 2. It is highly resistant to rice blast (overall population resistance ratio 93.38%, resistance ratio to the medium C group 92%), and susceptible to bacterial leaf blight (overall resistance rating grade 7). The full growth period as late-season rice is 117 days. It has strong tillering ability, a plant type that is moderately compact and open, and moderate cold tolerance at the later stage.

Rice Research Institute of the Guangdong Academy of Agricultural Sciences

Suitable for planting as late-season rice in areas of Guangdong Province outside northern Guangdong.