How to carry out Rice breeding

In the process of hybrid rice breeding, the sterility of rice male sterile lines is affected by photosensitive factors. Male sterile lines are generally sterile under long sunshine from April to September and fertile under short sunshine from September to April next year. Therefore, the yield of "two-line hybrid rice breeding" is more than 20% higher than that of "three-line hybrid rice breeding", and it overcomes the problems of singleness of sterile cytoplasmic source and great limitation of heterosis utilization. The genetic compatibility between indica and japonica subspecies is determined by their affinity substances. Under the same conditions, the gene compatibility of "two-line hybrid rice breeding" and "three-line hybrid rice breeding" is the same. If you want to know more about rice breeding, we suggest you contact the Green Food Research Institute of the Provincial Academy of Agricultural Sciences.