我国杂交稻的选育成功，大幅度地提高了水稻产量。而目前，杂交稻不育系都存在严重的包颈现象，制约了杂交水稻种子的生产。福建农林大学杨仁崔教授利用直接辐射诱变技术，把国内外生产上应用的主要三系和两系不育系都转育成不包颈不育系，并已配制高秆隐性杂交稻(e-杂交稻)进 The successful breeding of hybrid rice in China has greatly increased the yield of rice. At present, the male sterile lines of hybrid rice all have serious packing neck phenomenon, which restricts the production of hybrid rice seeds. Professor Yang Ren of Fujian Agriculture and Forestry University, using direct radiation mutagenesis technology, has transferred all major three-line and two-line male sterile lines used in domestic and foreign production to non-sterile male sterile lines and has formulated high-recessive hybrid rice e-hybrid rice) into