前言苧麻是我国的特产和重要的纺织纤维作物。由于当前全国种植的苧麻优良品种多属杂种一代,因此用种子繁殖法必然会发生性状分离,严重影响纤维的品质和产量。在生产上长期利用无性繁殖法来保持品种纯度和良种特性,但共繁殖系数太低,远不能满足目前全国纷纷建立苧麻纺织原料基地,实行品种区域化,迅速扩大种植优良品种的需要。所以,我们 Preface ramie is China’s specialty and an important textile fiber crops. Due to the current ramie planting varieties are mostly hybrid generation, so the seed propagation method will inevitably occur trait separation, seriously affecting the quality and yield of fiber. In the long-term use of asexual reproduction in production to maintain species purity and variety characteristics, but the total reproductive coefficient is too low, far can not meet the current establishment of ramie textile raw materials base, the implementation of regionalization, the rapid expansion of planting fine varieties needs. so we