1results about How to "Improve seed production efficiency" patented technology

The application belongs to the field of crop genetic breeding, and relates to a method for efficiently creating brown glume rice and application thereof. hcm A stable genetically brown glume mutant is created through radiation mutagenesis, and a molecular marker of the brown glume trait is developed hcm The recurrent parent Huazhan is used as a recurrent parent and the mutant is crossed to create brown glume rice through recurrent selection combined with molecular marker assisted selection. hcm F1 hybrid seeds are obtained by crossing the sterile line Huangling 165S and the brown glume rice, and brown glume hybrid rice seeds can be obtained by planting the F1 hybrid seeds. The brown glume trait of the mutant is introduced into the recurrent parent Huazhan and its hybrid seeds in a targeted manner, and the improved recurrent parent is used to develop hybrid rice seeds. When hybrid rice seeds are produced, the color difference between the seeds of the parents can be used to distinguish hybrid seeds and self-crossed seeds of the recurrent parent, so that the scale mixing, mixed harvesting and color selection separation of hybrid seeds can be realized, and the efficiency of hybrid rice seed production can be improved.