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通过自交系、双胚苗和弧雌生殖３条途径，选择和培育苎麻纯系，并采用配合力方法，预测纯系间杂种优势，从９１个苎麻栽培品种中，培育出自交材料２０４份，其中８～９代的材料有４９份。从２２８份材料中筛选出双胚苗９份，其频率为０．２５％～０．９０％。若用人工处理方法可使双胚苗出现频率提高到２．０２％～２．０５％。人工加倍双胚苗小苗，从加倍得到的３０份２ｎ材料中，初步鉴定出纯系材料５份。用２．０％二甲基亚砜加０．１％秋水仙碱诱导出苎麻弧雌生殖材料１２份，其中有纯合的二倍体材料３份。通过早代与晚代自交系配合力测定预测杂种优势，产量一般配合力较高的有Ｃ２和Ｃ１。细度一般配合力较高的有ＨＰ４和７５１０－５。并获得高产（比对照增产２５．７％）优质（细度１９００支以上）的强优势组合７５１０－５×ＨＰ４。
The inbred line, double embryo and arc female reproductive pathways were selected and cultured three ramie lines, and the use of combining ability method to predict heterosis between pure lines, ramie cultivars from 91 to cultivate 204 self-crosslinking material , Of which 8 to 9 generations of 49 materials. Twelve germlings were screened out from 228 materials with 9 frequencies of 0.25% ~ 0.90%. If using manual methods can double embryo emergence frequency increased to 2.02% ~ 2.05%. Artificial doubling double embryo seedling seedlings, obtained from the doubling of 30 2n materials, initially identified 5 lines of pure materials. Twelve ramie female reproductive materials were induced with 2.0% dimethylsulfoxide and 0.1% colchicine, of which 3 were homozygous diploid materials. Through predicting the heterosis of the combining ability of the early and late inbred lines, there are C2 and C1 with the higher combining ability. The fineness of the general cohesion with HP4 and 7510-5. And obtained a high-yielding 7510-5 × HP4 high-yield (25.7% yield increase) high-quality (fineness 1900+) superior combination.